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Compare the published Medicare service mix of Aparna Sridhar, MD with clinicians in the same registry specialty: Obstetrics & Gynecology.

LOS ANGELES, CA · Exact areaEdit location

2024 published service data · 70 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Erica Oberman, MD

Obstetrics & Gynecology · Los Angeles, 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)
  • Pelvic exam (99459)
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
88%Service-mix similarityView profile →

Alane Park, M.D.

Obstetrics & Gynecology · Los Angeles, 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)
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
81%Service-mix similarityView profile →

Lauren Nathan, MD

Obstetrics & Gynecology · Los Angeles, 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)
  • Pelvic exam (99459)
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
77%Service-mix similarityView profile →

Sarah Kiyomi Yamaguchi, M.D.

Obstetrics & Gynecology · Los Angeles, 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)
  • Pelvic exam (99459)
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
74%Service-mix similarityView profile →

Mya Rose Zapata, M.D.

Obstetrics & Gynecology · Los Angeles, 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)
  • Pelvic exam (99459)
73%Service-mix similarityView profile →

Tiffany Pham

Obstetrics & Gynecology · Los Angeles, 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)
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
72%Service-mix similarityView profile →

Andrea Rapkin, MD

Obstetrics & Gynecology · Los Angeles, 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)
  • Pelvic exam (99459)
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
70%Service-mix similarityView profile →

Dale Gene Parks, MD

Obstetrics & Gynecology · Los Angeles, 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)
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
69%Service-mix similarityView profile →

Ramneek K Rana, MD

Obstetrics & Gynecology · Los Angeles, 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)
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
68%Service-mix similarityView profile →

Jinwen Ingrid Lin, MD

Obstetrics & Gynecology · Los Angeles, 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)
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
67%Service-mix similarityView profile →

Timothy Tsui, M.D.

Obstetrics & Gynecology · Los Angeles, 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)
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
66%Service-mix similarityView profile →

Margaret Bates, M.D.

Obstetrics & Gynecology · Los Angeles, 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)
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
65%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.