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Compare the published Medicare service mix of Thomas Chang, M.D. with clinicians in the same registry specialty: Anesthesiology.

DALLAS, TX · Exact areaEdit location

2024 published service data · 500 eligible profiles compared. This search reached its 500-profile comparison limit, using NPI order. Narrow the location for a more focused comparison. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

David Scott Davis, M.D.

Anesthesiology · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on urinary system through urethra (00910)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Anesthesia for procedure for total knee joint replacement (01402)
63%Service-mix similarityView profile →

Tamrasha Williams, M.D.

Anesthesiology · Dallas, TX

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for other procedure on upper abdomen (00790)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
60%Service-mix similarityView profile →

Lori Bevis Clifford, M.D.

Anesthesiology · Dallas, TX

Shared published services
2 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Anesthesia for procedure for total knee joint replacement (01402)
58%Service-mix similarityView profile →

Phillip Ray Whitaker, MD

Anesthesiology · Dallas, TX

Shared published services
2 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Anesthesia for procedure for total knee joint replacement (01402)
58%Service-mix similarityView profile →

Macarthur L Baker, M.D.

Anesthesiology · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on upper abdomen (00790)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Anesthesia for procedure for total knee joint replacement (01402)
55%Service-mix similarityView profile →

Kim Pham, M.D.

Anesthesiology · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on upper abdomen (00790)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Anesthesia for procedure for total knee joint replacement (01402)
55%Service-mix similarityView profile →

Stephen K. Shu, DO

Anesthesiology · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on upper abdomen (00790)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Anesthesia for procedure for total knee joint replacement (01402)
54%Service-mix similarityView profile →

Jenni K. Underhill

Anesthesiology · Dallas, TX

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for other procedure on urinary system through urethra (00910)
54%Service-mix similarityView profile →

Dhiren Bhalodia, MD

Anesthesiology · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand (01810)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Anesthesia for procedure for total knee joint replacement (01402)
50%Service-mix similarityView profile →

Justin Paul Thampi, M.D.

Anesthesiology · Dallas, TX

Shared published services
2 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Anesthesia for procedure for total knee joint replacement (01402)
50%Service-mix similarityView profile →

James R. Heaberlin, MD

Anesthesiology · Dallas, TX

Shared published services
2 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Anesthesia for procedure for total knee joint replacement (01402)
49%Service-mix similarityView profile →

Douglas Arthur End, MD

Anesthesiology · Dallas, TX

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand (01810)
  • Anesthesia for procedure for total knee joint replacement (01402)
49%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.