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Compare the published Medicare service mix of Victor Hieu Tran with clinicians in the same registry specialty: Rheumatology (CMS).

LOS ANGELES, CA · Exact areaEdit location

2024 published service data · 47 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Benjamin Kretzmann, M.D.

Rheumatology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)
  • Insertion of needle into vein for collection of blood sample (36415)
  • Blood test, comprehensive group of blood chemicals (80053)
57%Service-mix similarityView profile →

Arash A. Horizon, M.D.

Internal Medicine · Rheumatology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)
  • Insertion of needle into vein for collection of blood sample (36415)
  • Blood test, comprehensive group of blood chemicals (80053)
53%Service-mix similarityView profile →

Lindsy Jennifer Forbess, MD

Internal Medicine · Rheumatology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Red blood cell sedimentation rate, to detect inflammation, non-automated (85651)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
41%Service-mix similarityView profile →

Stephen Leon Bland, MD

Internal Medicine · Rheumatology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
38%Service-mix similarityView profile →

Elayne K Garber, MD

Rheumatology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Red blood cell sedimentation rate, to detect inflammation, non-automated (85651)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
28%Service-mix similarityView profile →

Ram Raj Singh, MD

Allergy/Immunology · General Practice · Internal Medicine · Nephrology · Rheumatology (CMS) · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
28%Service-mix similarityView profile →

Alan Howard Gorn, MD

Internal Medicine · Rheumatology (CMS) · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
22%Service-mix similarityView profile →

Gary Richard Feldman, MD

Rheumatology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Injection of drug or substance under skin or into muscle (96372)
21%Service-mix similarityView profile →

Brendan Cerk, MD

Rheumatology (CMS) · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Injection of drug or substance under skin or into muscle (96372)
21%Service-mix similarityView profile →

Peter J Kim, MD

Internal Medicine · Rheumatology (CMS) · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Insertion of needle into vein for collection of blood sample (36415)
  • Injection of drug or substance under skin or into muscle (96372)
21%Service-mix similarityView profile →

Christina Marie Charles-Schoeman, MD

Rheumatology (CMS) · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
20%Service-mix similarityView profile →

Elizabeth Rita Volkmann, MD

Rheumatology (CMS) · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
20%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.