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Compare the published Medicare service mix of Athena Philis-Tsimikas, M.D. with clinicians in the same registry specialty: Endocrinology · Internal Medicine (CMS).

LA JOLLA, CA · Exact areaEdit location

2024 published service data · 11 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Christopher W. Marx, M.D.

Endocrinology · Internal Medicine (CMS) · La Jolla, CA

Shared published services
2 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)
  • 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 →

Farahnaz Shireen Joarder, M.D.

Endocrinology · Internal Medicine (CMS) · La Jolla, CA

Shared published services
1 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)
27%Service-mix similarityView profile →

Heather Leigh Hofflich, DO

Internal Medicine (CMS) · La Jolla, CA

Shared published services
2 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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
26%Service-mix similarityView profile →

Matthew Levine, M.D

Endocrinology · Internal Medicine (CMS) · La Jolla, CA

Shared published services
2 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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
26%Service-mix similarityView profile →

James D. Mccallum, M.D.

Endocrinology · Internal Medicine (CMS) · La Jolla, CA

Shared published services
2 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)
  • 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 →

Sylvie Pham, MD

Endocrinology (CMS) · La Jolla, CA

Shared published services
1 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)
20%Service-mix similarityView profile →

Mba Uzoma Udo Mba, M.D., PH.D.

Endocrinology · Geriatric Medicine · Internal Medicine (CMS) · La Jolla, CA

Shared published services
1 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)
18%Service-mix similarityView profile →

Amy Sheree Chang, MD

Endocrinology · Internal Medicine (CMS) · La Jolla, CA

Shared published services
1 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)
18%Service-mix similarityView profile →

Darius Alexander Schneider, MD, PHD

Endocrinology · Internal Medicine (CMS) · La Jolla, CA

Shared published services
1 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)
17%Service-mix similarityView profile →

Megan Elizabeth Mcgarvey, M.D.

Endocrinology (CMS) · La Jolla, CA

Shared published services
1 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)
17%Service-mix similarityView profile →

Liliana Uribe-Bruce, M.D.

Endocrinology (CMS) · La Jolla, CA

Shared published services
1 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)
17%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.