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Compare the published Medicare service mix of Christopher P Chung, M.D. with clinicians in the same registry specialty: Obstetrics/Gynecology (CMS).

CA · Exact areaEdit location

2024 published service data · 68 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Olivia Hui-Chiun Chang, M.D., M.P.H.

Obstetrics/Gynecology (CMS) · Orange, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Insertion of temporary bladder tube (51701)
  • Diagnostic exam of bladder and urethra using an endoscope (52000)
69%Service-mix similarityView profile →

Kavita Mishra, MD

Obstetrics/Gynecology (CMS) · Stanford, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Diagnostic exam of bladder and urethra using an endoscope (52000)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
69%Service-mix similarityView profile →

Sujatha Pathi, M.D.

Gynecological Oncology (CMS) · Greenbrae, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Insertion of temporary bladder tube (51701)
  • Diagnostic exam of bladder and urethra using an endoscope (52000)
66%Service-mix similarityView profile →

Priyanka Kadam Halani, M.D.

Obstetrics/Gynecology (CMS) · La Jolla, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Insertion of temporary bladder tube (51701)
  • Diagnostic exam of bladder and urethra using an endoscope (52000)
65%Service-mix similarityView profile →

Anna Frick, MD

Obstetrics/Gynecology (CMS) · Oakland, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Insertion of temporary bladder tube (51701)
  • Diagnostic exam of bladder and urethra using an endoscope (52000)
63%Service-mix similarityView profile →

Andrey Petrikovets, M.D.

Obstetrics/Gynecology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Insertion of temporary bladder tube (51701)
  • Diagnostic exam of bladder and urethra using an endoscope (52000)
62%Service-mix similarityView profile →

Peter A. Castillo, M.D.

Obstetrics/Gynecology (CMS) · Los Gatos, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Insertion of temporary bladder tube (51701)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
60%Service-mix similarityView profile →

Olga Ramm, MD

Obstetrics/Gynecology · Urology (CMS) · Oakland, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Insertion of temporary bladder tube (51701)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
59%Service-mix similarityView profile →

Kimia Menhaji, M.D.

Obstetrics/Gynecology (CMS) · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Insertion of temporary bladder tube (51701)
  • Diagnostic exam of bladder and urethra using an endoscope (52000)
58%Service-mix similarityView profile →

My-Linh Thi Nguyen, M.D.

Obstetrics/Gynecology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Insertion of temporary bladder tube (51701)
  • Diagnostic exam of bladder and urethra using an endoscope (52000)
57%Service-mix similarityView profile →

Erryn Tappy

Gynecological Oncology · Obstetrics/Gynecology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Insertion of temporary bladder tube (51701)
  • Diagnostic exam of bladder and urethra using an endoscope (52000)
56%Service-mix similarityView profile →

Lawrence L Lin, M.D.

Undefined Physician Type (Specify) (CMS) · Thousand Oaks, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Insertion of temporary bladder tube (51701)
  • Diagnostic exam of bladder and urethra using an endoscope (52000)
56%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.