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SADDLEBACK MEDICAL GROUP INC

PAC 5092606905 Physician group
INTERNAL MEDICINE · LAGUNA HILLS, CA · hospital-affiliated
Specialty INTERNAL MEDICINE — most common member specialty (multi-specialty groups carry one label; see Methods)
Footprint Registered in LAGUNA HILLS, CA · bills Medicare in 1 state (CA)
Scale 28 providers on the CMS registry roster · 6 codes billed (five-year data window) · 56 volume (all billed codes, CY2024)
Medicare paid $6K · across all billed codes, CY2024, attributed & disclosed
Affiliation Hospital-affiliated — at least one member holds a hospital affiliation in the CMS registry
Contact (949) 465-8155 — 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)
Data year CY2024 CY2023 CY2022  CY2021  CY2020 
Group analytics

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

Clinician makeup · CY2024
Physicians 25Advanced-practice 1Other clinicians 0= 26 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 26 are the clinicians who billed in CY2024 — a subset of the all-time registry roster shown on the group's identity card.

Billed 2 of the group's 6 codes this year, across 1 state (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 Volume (all codes)
1669004578 Ahmed, Nickhat FNP Nurse Practitioner Laguna HillsCA
1609845361 Daigneault, Arthur · member of 2 groups MD Internal Medicine Laguna HillsCA
1083673248 Dhillon, Kimvir · member of 2 groups MD Endocrinology Laguna HillsCA
1679534796 Donner, Barry · member of 5 groups MD Gastroenterology Laguna HillsCA
1548338908 Foster, Mark · member of 2 groups M.D. Family Practice Laguna HillsCA
1487820577 Geula, Navid · member of 2 groups D.O. Family Practice Laguna WoodsCA
1770087108 Guerson Gil, Arcelia · member of 2 groups Gastroenterology Laguna HillsCA
1629047824 Henry, Brian · member of 2 groups Internal Medicine Laguna HillsCA
1497792147 Ho, Nathaniel · member of 4 groups M.D. Nephrology Laguna HillsCA
1164552717 Huseby, David · member of 2 groups M.D. Internal Medicine Laguna HillsCA
1740448414 Iraninezhad, Homayon · member of 2 groups DO Gastroenterology Laguna HillsCA
1033317565 Kim, Yong-Sik · member of 2 groups MD Internal Medicine Laguna HillsCA
1417087073 Leish, Brian · member of 2 groups M.D. Family Practice Laguna HillsCA
1306883053 Ly, Cuong · member of 3 groups M.D. Nephrology Laguna HillsCA
1841259066 Mckenzie, Daniel · member of 2 groups MD Dermatology Laguna HillsCA
1275770885 Sadeghi Tari, Mahyar · member of 2 groups M.D. Internal Medicine ArcadiaCA
1366411555 Shields, Mark · member of 2 groups MD Internal Medicine Laguna HillsCA
1366598591 Siegfried, Tracy · member of 2 groups M.D. Internal Medicine Laguna HillsCA
1386613081 Siu, Curtis · member of 2 groups MD Internal Medicine Laguna HillsCA
1083744643 Sterns, Daniel · member of 2 groups M.D. Internal Medicine Laguna HillsqCA
1578523031 Tran, Cecilia · member of 2 groups MD Internal Medicine Laguna HillsCA
1093742173 Van Vranken, Bruce · member of 2 groups M.D. Family Practice Laguna WoodsCA
1598826612 Weinberg, Benjamin · member of 3 groups MD Gastroenterology Laguna HillsCA
1548229701 White, Alan · member of 2 groups MD Infectious Disease Laguna HillsCA
1487233003 Yanni, Tim · member of 2 groups DO Internal Medicine Laguna HillsCA

Showing the top 25 of 26 clinicians on this roster. The full roster is part of the premium platform. Notify me at launch →

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.