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Compare the published Medicare service mix of Anwer Alam Shaikh, M.D. with clinicians in the same registry specialty: Hematology/Oncology (CMS).

CA · Exact areaEdit location

2024 published service data · 272 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Timothy David Gilligan, M.D.

Internal Medicine · Medical Oncology (CMS) · San Francisco, 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)
  • Telephone medical discussion with physician, 11-20 minutes (99442)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
76%Service-mix similarityView profile →

Alex A Ehsan, M.D,

Hematology/Oncology (CMS) · Cerritos, 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)
  • Telephone medical discussion with physician, 11-20 minutes (99442)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
72%Service-mix similarityView profile →

Chien-Shing Chen, M.D.

Internal Medicine · Medical Oncology (CMS) · Loma Linda, 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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
70%Service-mix similarityView profile →

Hely Shah, M.D.

Hematology/Oncology (CMS) · Ukiah, 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)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • 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 →

Thomas J Spillane, MD

Hematology/Oncology · Medical Oncology (CMS) · San Luis Obispo, 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)
  • Telephone medical discussion with physician, 11-20 minutes (99442)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
66%Service-mix similarityView profile →

Afsaneh Barzi, M.D.

Specialty details in registry · Los Angeles, 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)
66%Service-mix similarityView profile →

Anastasia Martynova, M.D.

Hematology · Hematology/Oncology · Internal Medicine · Medical Oncology (CMS) · Los Angeles, 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)
66%Service-mix similarityView profile →

Masoom M Kandahari, MD FACP

Hematology/Oncology (CMS) · Temecula, 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)
65%Service-mix similarityView profile →

David Quinn, M.D.

Hematology · Internal Medicine · Medical Oncology (CMS) · Los Angeles, 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)
65%Service-mix similarityView profile →

Ranjan Sapra, M.D.

Specialty details in registry · Fountain Valley, 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)
  • Assessment of emotional or behavioral problems (96127)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
65%Service-mix similarityView profile →

Jane Edna Huang, MD

Hematology · Internal Medicine · Medical Oncology (CMS) · Palo Alto, 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)
65%Service-mix similarityView profile →

Allyson Campbell Spence, MD, PHD

Medical Oncology (CMS) · Stanford, 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)
62%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.