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Compare the published Medicare service mix of Shirin Heydari, PA with clinicians in the same registry specialty: Physician Assistant.

FULLERTON, CA · Exact areaEdit location

2024 published service data · 42 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Michael Alexander Medina, PA

Physician Assistant · Fullerton, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • X-ray of lower and sacral spine, 2-3 views (72100)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
44%Service-mix similarityView profile →

Cynthia Limon, PA

Physician Assistant · Fullerton, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
35%Service-mix similarityView profile →

Vanessa Franco, PA-C

Physician Assistant · Fullerton, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Telephone medical discussion with physician, 11-20 minutes (99442)
30%Service-mix similarityView profile →

Tammy Eileen Lo, MMS, PA-C

Physician Assistant · Fullerton, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Telephone medical discussion with physician, 11-20 minutes (99442)
29%Service-mix similarityView profile →

Aileen Sabio Estrada, PA-C

Physician Assistant · Fullerton, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
28%Service-mix similarityView profile →

Alexandra Abrew, PA-C

Physician Assistant · Fullerton, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
27%Service-mix similarityView profile →

Erica Ambrozevicius Gomez, DMSC, MPAP, PA-C

Physician Assistant · Fullerton, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
25%Service-mix similarityView profile →

Esther Guardado, P.A.C

Physician Assistant · Fullerton, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
23%Service-mix similarityView profile →

Linda Liu Luong, P.A.

Physician Assistant · Fullerton, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
21%Service-mix similarityView profile →

Rose-Ann Guevarra

Physician Assistant · Fullerton, CA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
21%Service-mix similarityView profile →

Penny Lane Makabenta, PA

Physician Assistant · Fullerton, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
21%Service-mix similarityView profile →

Gregory Aaron Garcia, PA-C

Physician Assistant · Fullerton, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
21%Service-mix similarityView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in NPI order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.