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BETH ISRAEL LAHEY HEALTH SPECIALTY CARE, INC.

PAC 2365405024 Provider group
CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) · BURLINGTON, MA · hospital-affiliated
Specialty CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) — most common member specialty (multi-specialty groups carry one label; see Methods)
Footprint Registered in BURLINGTON, MA · bills Medicare in 14 states
Scale 257 providers on the CMS registry roster · 328 codes billed (five-year data window) · 85,602 services (all billed codes, CY2024)
Medicare paid $5.6M · across all billed codes, CY2024, attributed & disclosed
Affiliation Hospital-affiliated — at least one member holds a hospital affiliation in the CMS registry
Contact (781) 744-8400 — CMS registry listing
CMS Doctors & Clinicians registry · Medicare Part B physician/supplier claims · figures are attributed (single-group clinicians) and disclosed fee-for-service — a subset, never complete totals · group series shown over the most recent 5 years (rosters archived from 2019)
Group analytics

Who's billing in this group, plus the paid volume analytics · CY2024

Clinician makeup · CY2024
Physicians 129Advanced-practice 95Other clinicians 6= 230 clinicians billed · CY2024
By clinician headcount, CY2024. 'Physician' follows Medicare's §1861(r) definition (MD/DO, podiatry, optometry, dental medicine, chiropractic); facility and supplier enrollments are not counted as clinicians. These 230 are the clinicians who billed in CY2024 — a subset of the all-time registry roster shown on the group's identity card.

Billed 179 of the group's 328 codes this year, across 9 states (CY2024).

The full analytics for this group

Premium

The billed-volume rank, trajectory, and economics behind this group — computed on the same disclosed Medicare Part B data.

What Medicare paid this group in CY2024 is on the group's identity card — free, on every tier. Premium breaks that figure down per code and per service, and puts the volume behind it in national and peer context.

  • Per-code payment breakdown & avg $/service — dollars behind the volume
  • Beneficiary-episode volume — reach, not just service counts
  • Office vs. facility setting mix — place-of-service code split
  • National billed-volume rank — percentile, cohort & year disclosed
  • Size-peer billed-volume benchmark — vs. groups of similar size
  • Top-3 clinician share — how volume distributes
  • 5-year volume trend — direction across the window
  • Business mix — largest codes by payment

Rank and benchmark figures are billed-volume positions among peers, not measures of care. All figures attributed (single-group clinicians) and disclosed Medicare Part B fee-for-service.

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Medicare Part B FFS · CY2024 · as published by CMS

Provider volumes, all codes · CY2024

NPIProviderCredentialsTypeCitySt Services (all codes) locked column
1457390692 Arsenian, Michael MD Cardiology GloucesterMA premium
1770996175 Koloff, Zachary MD Urology StonehamMA premium
1780619700 Tiffany, Peter M.D. Urology StonehamMA premium
1760541122 Murphy, Erin N.P. Nurse Practitioner StonehamMA premium
1033112610 Loughery, Edward M.D. Interventional Cardiology DanversMA premium
1306814272 Breckwoldt, William M.D. Vascular Surgery WinchesterMA premium
1932175924 Drinis, Sophia MD Urology BeverlyMA premium
1366437584 Lin, Denis MD Critical Care (Intensivists) BurlingtonMA premium
1427396019 Silva, Kyle D.O. Osteopathic Manipulative Medicine WinchesterMA premium
1194163485 Servais, Andrew M.D. General Surgery BostonMA premium
1205253994 Charette, Rebecca PA-C Physician Assistant Hanscom AfbMA premium
1205890761 Patwa, Najmuddin M.D. Pulmonary Disease WoburnMA premium
1689093080 Ludvigson, Adam M.D. Urology New HavenCT premium
1043504798 Huang, Derek M.D. Neurology EverettWA premium
1063882199 Jordan, Jessica MS, FNP-C Nurse Practitioner MelroseMA premium
1295871853 Bailey, Anthony MD Emergency Medicine BostonMA premium
1780754481 Wolf, Lucas MD Infectious Disease BeverlyMA premium
1477556587 Liebmann, James MD Hematology-Oncology WorcesterMA premium
1003353012 Saurman, Marcelle NP Nurse Practitioner ChelmsfordMA premium
1932841558 Rabidou, Spencer Physician Assistant BeverlyMA premium
1639150733 Frissora, Henry General Surgery BeverlyMA premium
1003158635 Kausar, Humera M.D. Infectious Disease BeverlyMA premium
1992229207 Misuraca, Jacqueline RN Nurse Practitioner GloucesterMA premium
1427017276 Cornell, Kelley M.D., FACS Vascular Surgery WoburnMA premium
1154816866 Sugano, Dordaneh Urology BurlingtonMA premium
1932254786 Ste.Marie, Ronald M.D. Gastroenterology BeverlyMA premium
1326036500 Lapine, Nina NP Nurse Practitioner DanversMA premium
1336639558 Nikas, Christine MD Urology Chapel HillNC premium
1891880134 Mcintyre, Angus M.D. Medical Oncology BeverlyMA premium
1649391715 Smith, Timothy M.D. Gastroenterology BeverlyMA premium
1487835955 Farina, Kimberley P.A.-C Physician Assistant StonehamMA premium
1588761019 Gillespie, Steven MD Psychiatry GloucesterMA premium
1902126238 Murphy, Lawrence M.D. Gastroenterology BeverlyMA premium
1659952034 Rubino, Kristin NP Nurse Practitioner BurlingtonMA premium
1033324330 Hutchinson, Helene Nurse Practitioner NewburyportMA premium
1619925898 Guryanova, Irina MD Psychiatry WalthamMA premium
1508809583 Liu, Zhao MD Endocrinology DanversMA premium
1952346710 Kearney, Marisa M.D. Emergency Medicine WinchesterMA premium
1801853007 Miura, Katherine M.D. Psychiatry BeverlyMA premium
1801883673 Yunus, Shakeeb MD Hematology-Oncology WorcesterMA premium
1841671526 Levy, Alison M.D. Urology DetroitMI premium
1184609307 Copeland, Maura MD Psychiatry BostonMA premium
1114193612 Clark, Brian M.D. Gastroenterology StonehamMA premium
1114075801 Messiner, Ryan D.O. Vascular Surgery GainesvilleFL premium
1609902287 Shieh, Kenneth M.D. Gastroenterology BeverlyMA premium
1669825493 Yeo, Justine PA-C Physician Assistant DanversMA premium
1376595264 Stefanski, Susan NP-C Nurse Practitioner GloucesterMA premium
1699200022 Kendrick, Karla MD Internal Medicine BostonMA premium
1407312655 Culhane, Shauna NP Nurse Practitioner WinchesterMA premium
1265741722 Robbins, Alison PA-C Physician Assistant WinchesterMA premium
1720247653 Lonshteyn, Maria Gastroenterology BeverlyMA premium
1508847898 Henriques, Robert NP Nurse Practitioner MethuenMA premium
1558564096 Reynolds, Le Grand MD, MBA Emergency Medicine WinchesterMA premium
1518914274 Chang, Joseph M.D. Emergency Medicine WinchesterMA premium
1306270707 Puder, Maren FNP Nurse Practitioner WilmingtonMA premium
1952662710 Choe, Susan D.O. Endocrinology DanversMA premium
1619408390 Leavitt, Jennifer Psychiatry BurlingtonMA premium
1720235120 Gross, Samuel MD Emergency Medicine WinchesterMA premium
1164601514 Willis, Kimberly NP-C, BSN Nurse Practitioner WeymouthMA premium
1629419270 Kolesar, Carla NP Nurse Practitioner HaverhillMA premium
1235374836 Arcikowski, Lisa NP Nurse Practitioner BostonMA premium
1235110107 Czarnecki, Alicia MD Family Practice WalthamMA premium
1265034813 Farinelli, Erica Nurse Practitioner BeverlyMA premium
1942295902 Breslin, Fiona MD Emergency Medicine BeverlyMA premium
1962110965 Darmstatter, Kelsey NP Nurse Practitioner WoburnMA premium
1841946142 Marrero Hernandez, Juan Physician Assistant BostonMA premium
1205199874 Birkett, Richard M.D. General Surgery BeverlyMA premium
1336535962 Bui, Rosa M.D. Gastroenterology BeverlyMA premium
1699750935 Dresens, Peter M.D. Anesthesiology GardnerMA premium
1245352590 Brady, Annmarie LICSW Licensed Clinical Social Worker DanversMA premium
1043209323 Cipolle, Robert M.D. Anesthesiology DanversMA premium
1811169394 Penn, Joshua MD Emergency Medicine WinchesterMA premium
1881053577 Moghul, Fazaldin DO General Surgery TacomaWA premium
1962460360 Mcphee, James M.D. Vascular Surgery West RoxburyMA premium
1619076833 Gong, Yuhong M.D. Endocrinology StonehamMA premium
1114237419 Shuman, Elizabeth RNPC Certified Clinical Nurse Specialist DanversMA premium
1063961969 Kennedy, Erin PMHNP Nurse Practitioner LynnMA premium
1952588477 Kiefer, Nicholas M.D. Anesthesiology BeverlyMA premium
1477590115 Edirisinghe, Nayomi M.D. General Surgery WoburnMA premium
1801159496 Shin, Reuben M.D. General Surgery BurlingtonMA premium
1154496933 Edwards, Lucas M.D. Anesthesiology BostonMA premium
1548562028 Mcdermott, Victoria NP Nurse Practitioner MedfordMA premium
1770922049 Kenworthy, Laurel LICSW Licensed Clinical Social Worker CambridgeMA premium
1396830469 Mckinnon, Kathleen LICSW Licensed Clinical Social Worker GloucesterMA premium
1023187259 Burke Elder, Brenda LICSW Licensed Clinical Social Worker LynnMA premium
1780094391 Woodward, Timothy M.D. Anesthesiology DanversMA premium
1396904611 Choice, Tanishia M.D. Psychiatry BostonMA premium
1508855800 Ganim, Donald M.D. Anesthesiology BeverlyMA premium
1285684720 Argento, Vivian Internal Medicine BridgeportCT premium
1467947184 Cassidy, Taylor PA-C Physician Assistant NashuaNH premium
1679529374 Dording, Christina M.D. Psychiatry BostonMA premium
1588823256 Jones, Andrew MD, MPH Internal Medicine WoburnMA premium
1194191668 Hijeck, Gregory PA-C Physician Assistant BurlingtonMA premium
1306031174 Smoller, Sara APRN Nurse Practitioner DanversMA premium
1679807705 Babin, Danielle LICSW Licensed Clinical Social Worker GloucesterMA premium
1174866024 Orthopoulos, Georgios MD General Surgery SpringfieldMA premium
1003348806 Sheehy, Brendan Anesthesiology DanversMA premium
1083119234 Antonell, Michael MD Anesthesiology BeverlyMA premium
1194044719 Hesketh, Anthony M.D., M.S. General Surgery Stony BrookNY premium
1548641053 Goldsmith, Naomi MD General Surgery WinchesterMA premium
1285760868 Fox, Justin M.D. Anesthesiology DanversMA premium
1073741310 Marchionda, Nicole PA Physician Assistant WinchesterMA premium
1982693305 Basile, Matthew CRNA Certified Registered Nurse Anesthetist (CRNA) DanversMA premium
1326498692 Collins, Meaghan M.D. General Surgery BurlingtonMA premium
1992479166 Fillmore, Destiny Nurse Practitioner ReadingMA premium
1629095641 Seitelman, Ellen PA-C Physician Assistant ArlingtonMA premium
1689086142 Paolino, Jacqueline M.D. General Surgery BurlingtonMA premium
1811934813 Massaquoi, Steve M.D., PH.D. Neurology BostonMA premium
1083633390 Mcdonald, Neil M.D. Anesthesiology WestwoodMA premium
1235794769 Germani, Mark Anesthesiology CambridgeMA premium
1891911558 Townsend, Judith PA, MFT Physician Assistant BurlingtonMA premium
1336289933 Denaro, Paul CRNA Certified Registered Nurse Anesthetist (CRNA) DoverNH premium
1619387727 Devlin, Elizabeth MD Anesthesiology BeverlyMA premium
1285685297 Zitkovsky, Dana M.D. Emergency Medicine WinchesterMA premium
1740402460 Migliero, Kelly M.D. General Surgery CambridgeMA premium
1689001059 Jordow, Rechele PMHNP-BC Nurse Practitioner LynnMA premium
1023421492 Birkett, Tanya M.D. Anesthesiology BurlingtonMA premium
1295138832 Sciascia, Sara APRN Nurse Practitioner LynnMA premium
1265964456 Stanton, Kate M.D. Psychiatry WorcessterMA premium
1184693988 Vu, Canh MD Psychiatry MelroseMA premium
1346774148 Babiarz, Jonathan CRNA Certified Registered Nurse Anesthetist (CRNA) BeverlyMA premium
1720496193 Pescatore, Leigh N.P. Nurse Practitioner BurlingtonMA premium
1538550876 Ettlinger, Rochelle NURSE PRACTITIONER Nurse Practitioner WinchesterMA premium
1114411154 Velamala, Pruthvi Raj MD Hospitalist WorcesterMA premium
1366749673 Burgett-Yandow, Nicole NP Nurse Practitioner North AndoverMA premium
1114461696 Cline, Catherine NP Nurse Practitioner BurlingtonMA premium
1336138619 Carter, Debbee CRNA Certified Registered Nurse Anesthetist (CRNA) DanversMA premium
1093811648 Ganapathy, Soumya MD Emergency Medicine BurlingtonMA premium
1699193920 Yegian, Courtney M.D. Anesthesiology BurlingtonMA premium
1770805202 Clark, Susannah PA-C Physician Assistant LowellMA premium
1659474609 Mccaffrey, Mary MD PHD Obstetrics & Gynecology BeverlyMA premium
1336130855 Brightney, Nancy CRNA Certified Registered Nurse Anesthetist (CRNA) DanversMA premium
1417455692 Carreiro, Adam Physician Assistant DorchesterMA premium
1720064538 Taylor, Kenneth CRNA Certified Registered Nurse Anesthetist (CRNA) BeverlyMA premium
1659890820 Doolan, Jade Nurse Practitioner BostonMA premium
1902229768 Stebenne, Grace FNP Nurse Practitioner DuarteCA premium
1154632065 Stiles, Justin M.D. Anesthesiology BostonMA premium
1871046946 Longval, Kaylen RN, BSN Certified Registered Nurse Anesthetist (CRNA) BeverlyMA premium
1164707667 Carter, Katherine CRNA Certified Registered Nurse Anesthetist (CRNA) MethuenMA premium
1457090649 Clifford-Biederman, Marissa Physician Assistant BurlingtonMA premium
1235245861 Eccleston, Stephanie PA-C Physician Assistant BurlingtonMA premium
1114300514 Bifolck, Dana PA-C Physician Assistant Winston SalemNC premium
1477195089 Chen, Alexis PA-C Physician Assistant BrocktonMA premium
1164875639 Albrinck, Jessica · member of 3 groups BSN, MPH, FNP-BC Nurse Practitioner WinchesterMA premium
1003166885 Al Dalati, Chirin · member of 4 groups M.D. Internal Medicine WinchesterMA premium
1477714376 Azhar, Naila · member of 3 groups M.D. Psychiatry LynnMA premium
1962504936 Balan, Stefan · member of 2 groups M.D. Hematology-Oncology UnionNJ premium
1841826195 Beaudry, Lindsay · member of 4 groups CRNA Certified Registered Nurse Anesthetist (CRNA) ConcordNH premium
1720159627 Blander, Daniel · member of 2 groups MD Urology BeverlyMA premium
1033225990 Bolla, Saritha · member of 2 groups MD Hematology-Oncology WinchesterMA premium
1275600926 Bouthot, Beth · member of 2 groups MD Nephrology BurlingtonMA premium
1467899153 Boyd, Rachel · member of 2 groups PA Physician Assistant BurlingtonMA premium
1417903196 Brogna, Carla · member of 2 groups PA Physician Assistant DanversMA premium
1326369380 Brook, Christopher · member of 2 groups M.D. Otolaryngology BostonMA premium
1518022805 Brown, Traci · member of 8 groups Certified Registered Nurse Anesthetist (CRNA) BranfordCT premium
1639844459 Carlis, Kendall · member of 3 groups Certified Registered Nurse Anesthetist (CRNA) BirminghamAL premium
1558351361 Cataldi-Betcher, Emma · member of 2 groups M.D. Anesthesiology DanversMA premium
1376554584 Ciccone, Teriggi · member of 3 groups M.D. Emergency Medicine WinchesterMA premium
1972774396 Clark, Monina · member of 2 groups CRNA Certified Registered Nurse Anesthetist (CRNA) BostonMA premium
1144516840 Colozzi, Caroline · member of 2 groups N.P. Nurse Practitioner BeverlyMA premium
1033698345 Cossard, Marianne · member of 2 groups CRNA Certified Registered Nurse Anesthetist (CRNA) WestwoodMA premium
1356878920 Dailey, Joseph · member of 2 groups MD Gastroenterology ChelmsfordMA premium
1417620238 D'hemecourt, Nicholas · member of 5 groups Certified Registered Nurse Anesthetist (CRNA) LawrenceMA premium
1902383045 Drost, Alexander · member of 2 groups Certified Registered Nurse Anesthetist (CRNA) BeverlyMA premium
1710268230 Drown, Michelle · member of 5 groups CRNA Certified Registered Nurse Anesthetist (CRNA) ConcordMA premium
1033789326 Duffy, Daniel · member of 2 groups CRNA Certified Registered Nurse Anesthetist (CRNA) DanversMA premium
1083672174 Dwyer, Maura · member of 5 groups C.R.N.A. Certified Registered Nurse Anesthetist (CRNA) LawrenceMA premium
1780976894 Ebrahimi, Ali · member of 2 groups M.D. Anesthesiology BurlingtonMA premium
1164526869 Elvanides, Harry · member of 2 groups MD Gastroenterology WorcesterMA premium
1952975682 Emerson, Madilyn · member of 5 groups RN Certified Registered Nurse Anesthetist (CRNA) BostonMA premium
1730342320 Faust, William · member of 2 groups M.D. Urology BurlingtonMA premium
1235235029 Fay, Monique · member of 3 groups CRNA Certified Registered Nurse Anesthetist (CRNA) BeverlyMA premium
1508209768 Freniere, Brian · member of 2 groups MD Plastic and Reconstructive Surgery BurlingtonMA premium
1447683016 Godfrey, Ryan · member of 3 groups PA-C Physician Assistant BostonMA premium
1104286285 Gopaul, Shamila · member of 3 groups CRNA Certified Registered Nurse Anesthetist (CRNA) BeverlyMA premium
1598171878 Graef, Elizabeth · member of 3 groups D.O. Internal Medicine BurlingtonMA premium
1457355232 Gross, Joseph · member of 2 groups M.D. Infectious Disease NewburyportMA premium
1164842613 Hackl, Florian · member of 3 groups M.D. Anesthesiology BurlingtonMA premium
1669844064 Haessler, Karen · member of 2 groups PA-C Physician Assistant CambridgeMA premium
1629572078 Hajjar, Maurice · member of 2 groups MD Emergency Medicine ChicagoIL premium
1528215654 Han, Haewon · member of 4 groups CRNA Certified Registered Nurse Anesthetist (CRNA) BeverlyMA premium
1124366620 Hard, Shannon · member of 3 groups CRNA Certified Registered Nurse Anesthetist (CRNA) BeverlyMA premium
1952673972 Hayes, Megan · member of 2 groups CRNA Certified Registered Nurse Anesthetist (CRNA) BostonMA premium
1851021158 Inestroza, Moises · member of 2 groups CRNA Certified Registered Nurse Anesthetist (CRNA) BeverlyMA premium
1356661250 Jellison, Angela · member of 2 groups MD Vascular Surgery RochesterNH premium
1487889291 Jin, Seonggeun · member of 4 groups CRNA Certified Registered Nurse Anesthetist (CRNA) BeverlyMA premium
1891785150 Kaufman, Michael · member of 3 groups MD Anesthesiology BeverlyMA premium
1174051601 Khalil, Shadi · member of 2 groups MD Hematology-Oncology WinchesterMA premium
1407260144 Kopelman, David · member of 2 groups MD Infectious Disease BurlingtonMA premium
1043718893 Laporte-Unni, Cindy · member of 2 groups FNP Nurse Practitioner BurlingtonMA premium
1821319393 Larson, Justin · member of 4 groups M.D. Emergency Medicine CambridgeMA premium
1982012076 Lavancher, Diana · member of 2 groups LICSW Licensed Clinical Social Worker WoburnMA premium
1730341686 Lo, Kuon · member of 3 groups MD Internal Medicine DorchesterMA premium
1871793786 Luther, Jay · member of 3 groups M.D. Gastroenterology BostonMA premium
1700314234 Mageid, Razaz · member of 2 groups MD Neurology BurlingtonMA premium
1174050595 Magliulo, Daniel · member of 3 groups MD Internal Medicine BostonMA premium
1407633654 Maradianos, Irini · member of 2 groups Physician Assistant MedfordMA premium
1255304986 Martinez, Irenio · member of 2 groups CRNA Certified Registered Nurse Anesthetist (CRNA) BeverlyMA premium
1639124225 Massey, Veronica · member of 2 groups Anesthesiology TampaFL premium
1952558736 Mathew, Jacob · member of 3 groups MD Psychiatry BostonMA premium
1033438031 Mayer, Sara · member of 2 groups M.D. Neurology BurlingtonMA premium
1881130144 Mohammed, Mailaja · member of 3 groups CNP Nurse Practitioner NashuaNH premium
1154302933 Mullins, Mark · member of 2 groups M.D. Emergency Medicine South WeymouthMA premium
1578678538 Napoli, David · member of 3 groups M.D. Anesthesiology BostonMA premium
1922276294 Nasser, Samer · member of 3 groups M.D. Nephrology QuincyMA premium
1720601388 Nims, Joshua · member of 2 groups MD Emergency Medicine ProvidenceRI premium
1013561570 Olsen, Kellie · member of 2 groups Nurse Practitioner LawrenceMA premium
1366476731 Parseghian, Shant · member of 3 groups MD Endocrinology StonehamMA premium
1821542671 Quinn, Austin · member of 2 groups MD Emergency Medicine ProvidenceRI premium
1205021862 Rehman, Urrooj · member of 3 groups MD Psychiatry BostonMA premium
1811154297 Richio, Laura · member of 2 groups MD Obstetrics & Gynecology BeverlyMA premium
1164803870 Rohman, Courtney · member of 2 groups PA-C Physician Assistant WoburnMA premium
1275970501 Safa, Ahmed · member of 2 groups MD Hematology-Oncology BeverlyMA premium
1225019185 Schillinger, Stephen · member of 2 groups D.O. Emergency Medicine BeverlyMA premium
1295911337 Sellitto, Maria · member of 4 groups APRN, BC, MSN, FNP Nurse Practitioner BillericaMA premium
1326136052 Storey, Michael · member of 2 groups CRNA Certified Registered Nurse Anesthetist (CRNA) BostonMA premium
1871150037 Stradtman, Merrye · member of 3 groups CRNA Certified Registered Nurse Anesthetist (CRNA) BeverlyMA premium
1457014938 Sutherlin, Jiliane · member of 3 groups NP Nurse Practitioner WoburnMA premium
1023306875 Taleb, Mona · member of 3 groups MD/PHD General Surgery FarmvilleVA premium
1700834389 Taylor, Kristin · member of 2 groups NP Nurse Practitioner SalemMA premium
1801115076 Uthayashankar, Arun · member of 3 groups MD Anesthesiology BeverlyMA premium
1639117070 Varai, Gyorgy · member of 3 groups MD Psychiatry EverettMA premium
1558341206 Vidal-Farino, Zorayda · member of 2 groups M.D. Psychiatry LynnMA premium
1700364619 Walsh, Colin · member of 4 groups CRNA Certified Registered Nurse Anesthetist (CRNA) BostonMA premium
1881275220 Weaver, Rolinsay · member of 3 groups CRNA Certified Registered Nurse Anesthetist (CRNA) NorwichCT premium
1972184315 Weaver, Bryan · member of 3 groups Certified Registered Nurse Anesthetist (CRNA) NorwichCT premium
1164484549 Whitney, Ann-Marie · member of 6 groups C.R.N.A. Certified Registered Nurse Anesthetist (CRNA) WorcesterMA premium
1528066354 Williams, Linda · member of 3 groups CRNA Certified Registered Nurse Anesthetist (CRNA) BeverlyMA premium
1154570372 Wilson, Keren · member of 2 groups D.O. Family Practice TewksburyMA premium
1851829949 Zappala, Lisa · member of 4 groups Certified Registered Nurse Anesthetist (CRNA) BostonMA premium

Volumes are attributed to a group only for clinicians affiliated with exactly one group. Clinicians in several groups are listed ("member of N groups") but shown as "—" — their volume is not attributed to any single group. A "—" on a single-group clinician means CMS suppressed the figure (fewer than 11 beneficiaries), never zero. Beneficiary-episodes count CMS's per-setting beneficiary figures, not unique patients. Average Medicare payment is the amount Medicare actually paid per service, weighted by service volume across office and facility settings. Where the roster is a single clinician, that clinician's service counts match the group's attributed volume shown on the ranked results, so they are shown here; the per-provider split across a larger roster is a premium feature. See Methods & Sources.