69990 — Use of operating microscope
3,329 observed fee-for-service (49%) · ~3,405 estimated Medicare Advantage. Scaled from the observed floor by each state’s fee-for-service share (FFS share as of 2024) — scaled estimate — assumes MA utilization mirrors FFS; not an observation. How we scale
Disclosed Medicare fee-for-service services by billing state; open a bar for that state's ranked market. Average submitted charge / service by billing state, among the highest-volume states; open a bar for that state's ranked market.
- Market position — where this market sits on volume and growth among all state markets, and its rank.
- Worth a look — every state market for this search, ranked by a published score: size, growth, fragmentation, below-expected volume.
- Lookalike opportunities — groups billing below what peers of the same specialty, size, and state predict, with the expected figure shown.
- National benchmarks — where each group's volume sits nationally and within its specialty.
- Market structure — how concentrated this market is, and who owns the volume.
- Medicare-wide scaling — the exact payer split, and this market total scaled to all of Medicare, labeled as an estimate.
Nevvi's market analytics platform — code baskets, market structure and share, the twelve-year trend layer — is built and not launched yet. We're gathering interest in it.
Notify me at launch →| # | Physician group | City | St | Specialty | Providers | 69990 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | NEUROSURGICAL ASSOCIATES LTD | PHOENIX | AZ | NEUROSURGERY | 74 | 182 | $152,325 | $837 | premium | 65.2% | (602) 406-3181 |
| 2 | STANFORD HEALTH CARE | STANFORD | CA | DIAGNOSTIC RADIOLOGY | 3039 | 144 | $152,307 | $1,058 | premium | 21.7% | (650) 723-4000 |
| 3 | BRIGHAM AND WOMENS PHYSICIANS ORGANIZATION INC | BOSTON | MA | PHYSICIAN ASSISTANT | 2942 | 120 | $136,440 | $1,137 | premium | 69.4% | (617) 732-5500 |
| 4 | CEDARS-SINAI MEDICAL CENTER | WEST HOLLYWOOD | CA | NURSE PRACTITIONER | 802 | 114 | $141,944 | $1,245 | premium | 17.1% | (310) 423-3277 |
| 5 | UNIVERSITY OF PENN - MEDICAL GROUP | PHILADELPHIA | PA | PHYSICIAN ASSISTANT | 3505 | 96 | $69,600 | $725 | premium | 43.2% | (215) 662-2777 |
| 6 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 95 | $261,482 | $2,752 | premium | 67.9% | — |
| 7 | INDIANAPOLIS NEUROSURGICAL GROUP PC | CARMEL | IN | NEUROSURGERY | 50 | 86 | $59,757 | $695 | premium | 100.0% | (317) 396-1451 |
| 8 | UCSF MEDICAL GROUP BUSINESS SERVICES | SAN FRANCISCO | CA | DIAGNOSTIC RADIOLOGY | 1548 | 81 | $88,776 | $1,096 | premium | 12.2% | (415) 476-1000 |
| 9 | UNIVERSITY OF WISCONSIN MEDICAL FOUNDATION INC | MADISON | WI | PHYSICIAN ASSISTANT | 2523 | 72 | $468,846 | $6,512 | premium | 69.2% | (608) 287-2050 |
| 10 | UNIVERSITY OF MIAMI | MIAMI | FL | NURSE PRACTITIONER | 2331 | 68 | $74,256 | $1,092 | premium | 25.0% | (305) 689-5437 |
| 11 | MSKCC SURGERY GROUP | NEW YORK | TX | PHYSICIAN ASSISTANT | 373 | 66 | $112,200 | $1,700 | premium | 18.0% | (212) 639-2000 |
| 12 | MAYO CLINIC | ROCHESTER | MN | NURSE PRACTITIONER | 4896 | 61 | $298,959 | $4,901 | premium | 73.5% | (507) 284-2511 |
| 13 | UT PHYSICIANS | HOUSTON | TX | NEUROLOGY | 202 | 58 | $67,048 | $1,156 | premium | 15.8% | (713) 486-8000 |
| 14 | DUKE HEALTH INTEGRATED PRACTICE INC | DURHAM | NC | PHYSICIAN ASSISTANT | 3051 | 57 | $46,569 | $817 | premium | 52.3% | (919) 684-8111 |
| 15 | PROVIDENCE HEALTH AND SERVICES WASHINGTON | SPOKANE | WA | PHYSICIAN ASSISTANT | 771 | 54 | $21,643 | $401 | premium | 31.6% | — |
| 16 | UNIVERSITY PROFESSIONAL SERVICES | PORTLAND | OR | PHYSICIAN ASSISTANT | 1717 | 51 | $36,422 | $714 | premium | 82.3% | (503) 494-8311 |
| 17 | SEMMES-MURPHEY CLINIC PC | MEMPHIS | TN | NEUROSURGERY | 65 | 49 | $60,637 | $1,237 | premium | 40.8% | (901) 522-7700 |
| 18 | UNIVERSITY OF PITTSBURGH PHYSICIANS | PITTSBURGH | PA | DIAGNOSTIC RADIOLOGY | 4291 | 47 | $29,845 | $635 | premium | 21.2% | — |
| 19 | MAYO CLINIC ARIZONA | PHOENIX | AZ | PHYSICIAN ASSISTANT | 1635 | 47 | $102,166 | $2,174 | premium | 16.8% | (800) 603-0558 |
| 20 | CITY OF HOPE MEDICAL FOUNDATION | DUARTE | CA | NURSE PRACTITIONER | 942 | 42 | $16,434 | $391 | premium | 6.3% | (626) 256-4673 |
| 21 | KANSAS UNIVERSITY PHYSICIANS INC | KANSAS CITY | KS | NURSE PRACTITIONER | 1815 | 40 | $30,149 | $754 | premium | 100.0% | (913) 588-1227 |
| 22 | ATLANTIC BRAIN AND SPINE LLC | MORRISTOWN | NJ | NEUROSURGERY | 25 | 40 | $37,893 | $947 | premium | 100.0% | — |
| 23 | HEALTHTEXAS PROVIDER NETWORK | DALLAS | TX | PHYSICIAN ASSISTANT | 2482 | 40 | $36,061 | $902 | premium | 10.9% | — |
| 24 | ST VINCENT MEDICAL GROUP | LITTLE ROCK | AR | FAMILY PRACTICE | 247 | 39 | $47,229 | $1,211 | premium | 76.5% | (501) 562-4838 |
| 25 | JOHNS HOPKINS UNIVERSITY | BALTIMORE | MD | NURSE PRACTITIONER | 2900 | 33 | $49,500 | $1,500 | premium | 38.8% | (410) 502-4340 |
| 26 | UNIVERSITY MEDICAL ASSOCIATES OF THE MEDICAL UNIVERSITY OF SOUTH CAROL | CHARLESTON | SC | PHYSICIAN ASSISTANT | 1692 | 33 | $35,868 | $1,087 | premium | 33.3% | (843) 792-1414 |
| 27 | UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL CENTER AT DALLAS | DALLAS | TX | PHYSICIAN ASSISTANT | 3200 | 32 | $50,080 | $1,565 | premium | 8.7% | (214) 633-5555 |
| 28 | VANDERBILT UNIVERSITY MEDICAL CENTER | NASHVILLE | TN | NURSE PRACTITIONER | 3394 | 31 | $24,459 | $789 | premium | 25.8% | (615) 322-5000 |
| 29 | ST LUKES CLINIC-TREASURE VALLEY LLC | BOISE | TX | PHYSICIAN ASSISTANT | 1159 | 31 | $12,951 | $418 | premium | 8.4% | (208) 381-4210 |
| 30 | THE REGENTS OF THE UNIVERSITY OF CALIFORNIA | LOS ANGELES | CA | NEUROSURGERY | 46 | 31 | $44,020 | $1,420 | premium | 4.7% | (310) 825-5111 |
| 31 | PRISMA HEALTH MEDICAL GROUP-MIDLANDS | COLUMBIA | SC | PHYSICIAN ASSISTANT | 1017 | 30 | $14,522 | $484 | premium | 30.3% | (803) 749-5101 |
| 32 | UNIVERSITY PHYSICIANS INCORPORATED | AURORA | CO | PHYSICIAN ASSISTANT | 3122 | 30 | $34,650 | $1,155 | premium | 45.5% | (720) 777-1234 |
| 33 | REGENTS OF THE UNIV OF CA | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 1608 | 30 | $23,970 | $799 | premium | 4.5% | (877) 827-7463 |
| 34 | NEW YORK SPINE AND BRAIN SURGERY, UNIVERSITY FACULTY PRACTICE CORPORAT | STONY BROOK | NY | PHYSICIAN ASSISTANT | 60 | 29 | $35,960 | $1,240 | premium | 12.7% | (631) 444-1213 |
| 35 | OSU INTERNAL MEDICINE LLC | COLUMBUS | OH | NURSE PRACTITIONER | 1155 | 29 | $22,330 | $770 | premium | 36.7% | (614) 293-8000 |
| 36 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 28 | $14,233 | $508 | premium | 4.2% | (916) 681-8852 |
| 37 | UNIVERSITY NEUROSURGICAL ASSOCIATES PC | SOUTHFIELD | MI | NEUROSURGERY | 34 | 28 | $126,728 | $4,526 | premium | 70.0% | (248) 351-6300 |
| 38 | MEMORIAL HEALTH PARTNERS FOUNDATION, INC | CHATTANOOGA | TN | NURSE PRACTITIONER | 459 | 28 | $7,939 | $284 | premium | 23.3% | (423) 495-2620 |
| 39 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 28 | $119,700 | $4,275 | premium | 12.3% | (212) 263-9700 |
| 40 | THE ASSOCIATION OF UNIVERSITY PHYSICIANS | SEATTLE | WA | PHYSICIAN ASSISTANT | 3612 | 28 | $18,536 | $662 | premium | 16.4% | (206) 364-0500 |
| 41 | LYERLY BAPTIST INC | JACKSONVILLE | FL | NURSE PRACTITIONER | 68 | 25 | $14,681 | $587 | premium | 9.2% | (904) 388-6518 |
| 42 | NEUROSURGICAL CONSULTANTS LLP | EVANSVILLE | KY | PHYSICIAN ASSISTANT | 18 | 24 | $36,960 | $1,540 | premium | 31.2% | (812) 426-8410 |
| 43 | MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC | BOSTON | MA | DIAGNOSTIC RADIOLOGY | 3532 | 24 | $27,288 | $1,137 | premium | 13.9% | (617) 724-0287 |
| 44 | NEURO ON CALL PLLC | ENGLEWOOD | CO | PHYSICIAN ASSISTANT | 10 | 24 | $20,543 | $856 | premium | 36.4% | (303) 783-8844 |
| 45 | NORTHWEST SURGICAL SPECIALISTS PC | VANCOUVER | WA | PHYSICIAN ASSISTANT | 114 | 23 | $8,770 | $381 | premium | 13.5% | (360) 487-1000 |
| 46 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | SAN DIEGO | CA | DIAGNOSTIC RADIOLOGY | 2057 | 23 | $23,049 | $1,002 | premium | 3.5% | (800) 926-8273 |
| 47 | UNIVERSITY OF VIRGINIA PHYSICIANS GROUP | CHARLOTTESVILLE | VA | NURSE PRACTITIONER | 1704 | 22 | $24,574 | $1,117 | premium | 29.3% | (434) 924-5959 |
| 48 | UNIVERSITY OF ALABAMA HEALTH SERVICES FOUNDATION, PC | BIRMINGHAM | AL | NURSE PRACTITIONER | 2788 | 22 | $20,746 | $943 | premium | 100.0% | (205) 934-3460 |
| 49 | UNIVERSITY OF VERMONT MEDICAL CENTER INC | BURLINGTON | VT | PHYSICIAN ASSISTANT | 1194 | 21 | $18,758 | $893 | premium | 63.6% | (802) 847-0000 |
| 50 | YALE UNIVERSITY | NEW HAVEN | CT | PHYSICIAN ASSISTANT | 2649 | 20 | $27,600 | $1,380 | premium | 46.5% | (203) 688-4242 |
| 51 | B BARRY CHEHRAZI MD INC | ROSEVILLE | CA | NEUROSURGERY | 3 | 20 | $27,060 | $1,353 | premium | 3.0% | (916) 773-8700 |
| 52 | MAYO CLINIC | ROCHESTER | CA | NURSE PRACTITIONER | 4896 | 20 | $103,902 | $5,195 | premium | 3.0% | (507) 284-2511 |
| 53 | INOVA HEALTH CARE SERVICES | FALLS CHURCH | VA | NURSE PRACTITIONER | 1818 | 20 | $12,100 | $605 | premium | 26.7% | — |
| 54 | SCRIPPS HEALTH | LA JOLLA | CA | PHYSICIAN ASSISTANT | 1431 | 19 | $14,502 | $763 | premium | 2.9% | (858) 455-9100 |
| 55 | ENDEAVOR HEALTH MEDICAL GROUP | EVANSTON | WI | NURSE PRACTITIONER | 3380 | 19 | $25,251 | $1,329 | premium | 18.3% | — |
| 56 | ST LUKES CLINIC-TREASURE VALLEY LLC | BOISE | ID | PHYSICIAN ASSISTANT | 1159 | 18 | $2,257 | $125 | premium | 50.0% | (208) 381-4210 |
| 57 | SAINT ALPHONSUS REGIONAL MEDICAL CENTER INC | BOISE | ID | PHYSICIAN ASSISTANT | 647 | 18 | $14,004 | $778 | premium | 50.0% | — |
| 58 | NEUROSURGICAL ASSOCIATES PC | HENRICO | VA | NEUROSURGERY | 16 | 18 | $22,248 | $1,236 | premium | 24.0% | (804) 288-8204 |
| 59 | WEILL MEDICAL COLLEGE OF CORNELL | NEW YORK | NY | INTERNAL MEDICINE | 2053 | 17 | $7,091 | $417 | premium | 7.5% | (212) 746-5454 |
| 60 | TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK | NEW YORK | NY | NURSE PRACTITIONER | 2273 | 16 | $61,808 | $3,863 | premium | 7.0% | (212) 305-8559 |
| 61 | COMMUNITY HEALTH PARTNERS | FRESNO | NY | INTERNAL MEDICINE | 509 | 16 | $9,106 | $569 | premium | 7.0% | (559) 459-6000 |
| 62 | UNIVERSITY OF UTAH SURGICAL SERVICES | SALT LAKE CITY | UT | PHYSICIAN ASSISTANT | 45 | 16 | $16,912 | $1,057 | premium | 100.0% | (801) 585-7575 |
| 63 | OU HEALTH PARTNERS INC | OKLAHOMA CITY | OK | PHYSICIAN ASSISTANT | 1160 | 16 | $12,762 | $798 | premium | 100.0% | (405) 271-4311 |
| 64 | LSU HEALTH SCIENCES CENTER SHREVEPORT FACULTY GROUP PRACTICE | SHREVEPORT | LA | PHYSICIAN ASSISTANT | 589 | 16 | $24,000 | $1,500 | premium | 36.4% | (318) 675-8700 |
| 65 | UNIVERSITY OF CINCINNATI PHYSICIANS COMPANY LLC | CINCINNATI | KY | NURSE PRACTITIONER | 1504 | 16 | $10,288 | $643 | premium | 20.8% | (513) 584-1000 |
| 66 | MSKCC SURGERY GROUP | NEW YORK | NY | PHYSICIAN ASSISTANT | 373 | 16 | $27,200 | $1,700 | premium | 7.0% | (212) 639-2000 |
| 67 | JEFFERSON UNIVERSITY PHYSICIANS | PHILADELPHIA | DE | DIAGNOSTIC RADIOLOGY | 1570 | 15 | $19,875 | $1,325 | premium | 100.0% | — |
| 68 | CLEVELAND CLINIC FLORIDA | WESTON | FL | NURSE PRACTITIONER | 720 | 15 | $22,125 | $1,475 | premium | 5.5% | (954) 659-5000 |
| 69 | NEUROLOGICAL ASSOCIATES OF TUCSON | TUCSON | AZ | OTOLARYNGOLOGY | 60 | 15 | $8,505 | $567 | premium | 5.4% | (520) 795-7750 |
| 70 | NEW ENGLAND MEDICAL CENTER GROUP PRACTICE INC | BOSTON | MA | PHYSICIAN ASSISTANT | 29 | 15 | $19,545 | $1,303 | premium | 8.7% | (617) 636-7399 |
| 71 | SAINT LUKES PHYSICIAN GROUP INC | KANSAS CITY | TX | NURSE PRACTITIONER | 1228 | 15 | $10,575 | $705 | premium | 4.1% | — |
| 72 | LIFESPAN PHYSICIAN GROUP INC | PROVIDENCE | RI | PHYSICIAN ASSISTANT | 947 | 15 | $13,295 | $886 | premium | 100.0% | (401) 793-9172 |
| 73 | ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI | NEW YORK | NY | PHYSICIAN ASSISTANT | 2818 | 15 | $75,000 | $5,000 | premium | 6.6% | (212) 241-4812 |
| 74 | NEUROSURGICAL ASSOCIATES OF CENTRAL NEW YORK, LLP | SYRACUSE | NY | NEUROSURGERY | 15 | 15 | $6,375 | $425 | premium | 6.6% | (315) 464-4470 |
| 75 | ILYAS MUNSHI, M.D. | LAFAYETTE | LA | NEUROSURGERY | 2 | 14 | $58,660 | $4,190 | premium | 31.8% | (337) 234-5344 |
| 76 | UNIVERSITY OF PITTSBURGH PHYSICIANS | PITTSBURGH | AZ | DIAGNOSTIC RADIOLOGY | 4291 | 14 | $8,890 | $635 | premium | 5.0% | — |
| 77 | MAINEHEALTH | PORTLAND | ME | NURSE PRACTITIONER | 2574 | 14 | $6,510 | $465 | premium | 100.0% | (207) 885-9905 |
| 78 | COMMUNITY MEDICAL ASSOCIATES INC | LOUISVILLE | KY | NURSE PRACTITIONER | 1377 | 14 | $9,898 | $707 | premium | 18.2% | (502) 937-2209 |
| 79 | FLORIDA HOSPITAL HEALTHCARE PARTNERS, INC | DAYTONA BEACH | FL | PHYSICIAN ASSISTANT | 588 | 14 | $12,621 | $902 | premium | 5.1% | (386) 231-6000 |
| 80 | COMMUNITY HEALTH PARTNERS | FRESNO | CA | INTERNAL MEDICINE | 509 | 14 | $7,541 | $539 | premium | 2.1% | (559) 459-6000 |
| 81 | NEUROMEDICAL CENTER | BATON ROUGE | LA | PHYSICIAN ASSISTANT | 108 | 14 | $16,688 | $1,192 | premium | 31.8% | 22576922002164 |
| 82 | NORTH SHORE-LIJ MEDICAL PC | MANHASSET | PA | PHYSICIAN ASSISTANT | 6294 | 14 | $29,624 | $2,116 | premium | 6.3% | — |
| 83 | LEHIGH VALLEY PHYSICIAN GROUP | ALLENTOWN | PA | PHYSICIAN ASSISTANT | 2389 | 14 | $7,105 | $508 | premium | 6.3% | — |
| 84 | LAHEY CLINIC INC | BURLINGTON | MA | NURSE PRACTITIONER | 1400 | 14 | $10,486 | $749 | premium | 8.1% | — |
| 85 | SWEDISH HEALTH SERVICES | SEATTLE | WA | PHYSICIAN ASSISTANT | 1033 | 14 | $9,128 | $652 | premium | 8.2% | — |
| 86 | MAYFIELD CLINIC INC | CINCINNATI | OH | PHYSICIAN ASSISTANT | 77 | 13 | $11,129 | $856 | premium | 16.5% | (513) 221-1100 |
| 87 | FAIRBANKS PARTNERS LLC | CELEBRATION | FL | NEUROSURGERY | 36 | 13 | $11,011 | $847 | premium | 4.8% | (407) 975-0200 |
| 88 | SANFORD MEDICAL CENTER FARGO | FARGO | ND | NURSE PRACTITIONER | 1198 | 13 | $1,676 | $129 | premium | 46.4% | (701) 234-2000 |
| 89 | PRISMA HEALTH UNIVERSITY MEDICAL GROUP | GREENVILLE | SC | NURSE PRACTITIONER | 2447 | 13 | $6,474 | $498 | premium | 13.1% | — |
| 90 | STATE UNIVERSITY OF IOWA | IOWA CITY | IA | PHYSICIAN ASSISTANT | 1902 | 13 | $16,952 | $1,304 | premium | 100.0% | (319) 678-8201 |
| 91 | OHIOHEALTH CORPORATION | COLUMBUS | OH | PHYSICIAN ASSISTANT | 2282 | 13 | $8,840 | $680 | premium | 16.5% | — |
| 92 | REGENTS OF THE UNIVERSITY OF CALIFORNIA | ORANGE | CA | NEUROSURGERY | 27 | 13 | $12,350 | $950 | premium | 2.0% | (714) 456-7004 |
| 93 | CARLE HEALTH CARE INCORPORATED | URBANA | IL | NURSE PRACTITIONER | 1528 | 13 | $88,583 | $6,814 | premium | 9.3% | (888) 712-2753 |
| 94 | HOAG CLINIC | NEWPORT BEACH | CA | PHYSICIAN ASSISTANT | 436 | 13 | $14,248 | $1,096 | premium | 2.0% | (949) 791-3370 |
| 95 | THE MEDICAL COLLEGE OF WISCONSIN INC | MILWAUKEE | WI | DIAGNOSTIC RADIOLOGY | 2137 | 13 | $30,745 | $2,365 | premium | 12.5% | (414) 955-4263 |
| 96 | HEALTHTEXAS PROVIDER NETWORK | DALLAS | OH | PHYSICIAN ASSISTANT | 2482 | 13 | $11,720 | $902 | premium | 16.5% | — |
| 97 | FLORIDA CLINICAL PRACTICE ASSOCIATION INC | GAINESVILLE | IL | NURSE PRACTITIONER | 1912 | 13 | $16,572 | $1,275 | premium | 9.3% | (352) 265-8990 |
| 98 | FLORIDA CLINICAL PRACTICE ASSOCIATION INC | GAINESVILLE | FL | NURSE PRACTITIONER | 1912 | 13 | $17,636 | $1,357 | premium | 4.8% | (352) 265-8990 |
| 99 | SANFORD MEDICAL CENTER | SIOUX FALLS | SD | NURSE PRACTITIONER | 831 | 12 | $2,585 | $215 | premium | 44.4% | (605) 332-2883 |
| 100 | CATHOLIC HEALTH INITIATIVES COLORADO | WOODLAND PARK | CO | PHYSICIAN ASSISTANT | 1266 | 12 | $6,564 | $547 | premium | 18.2% | (719) 776-4780 |
Showing the top 100 of 104 groups — the full ranking is part of the market analytics platform — built, not launched yet. Notify me at launch →
*Share of the state's disclosed Medicare-FFS services for the primary code, counted once per clinician. "St" is the state the volume was billed from: a group appears in each state where its clinicians bill Medicare, with that state's volume and share ("City" is the group's registered location). Group figures sum clinicians affiliated with exactly one group; clinicians in several groups are listed in each group's drill-down but not volume-attributed to any single group, so shares reflect attributable volume. See Methods.
Comparing against an all-payer estimate?
These are exact counts from Medicare fee-for-service claims — roughly a third to half of most procedure markets, depending on payer mix. Modeled all-payer databases project the remainder statistically; we publish the audited floor and label it as such. Same market, different denominator. How the numbers reconcile →