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Compare the published Medicare service mix of Ali-Reza Barmaki, M.D. with clinicians in the same registry specialty: Internal Medicine.

WALNUT CREEK, CA · Exact areaEdit location

2024 published service data · 78 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Marvi Verma Rijhwani, M.D.

Internal Medicine · Walnut Creek, CA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes (99307)
90%Service-mix similarityView profile →

Lillian Tseng, M.D.

Internal Medicine · Walnut Creek, CA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
77%Service-mix similarityView profile →

Tony Zung, M.D.

Internal Medicine · Walnut Creek, CA

Shared published services
1 shared services · view billing descriptions
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes (99307)
63%Service-mix similarityView profile →

Smita Chandra, M.D.

Internal Medicine · Walnut Creek, CA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes (99307)
56%Service-mix similarityView profile →

Gurinder Singh, D.O.

Internal Medicine · Walnut Creek, CA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
56%Service-mix similarityView profile →

Kartik Rama Krishnan, M.D.

Internal Medicine · Walnut Creek, CA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
55%Service-mix similarityView profile →

Kamal S Ghei, M.D.

Internal Medicine · Walnut Creek, CA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
50%Service-mix similarityView profile →

Bibanjeet K. Virk, M.D.

Internal Medicine · Walnut Creek, CA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
50%Service-mix similarityView profile →

Anusha Bakshi, M.D.

Internal Medicine · Walnut Creek, CA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
49%Service-mix similarityView profile →

Sohrab Amiri, M.D.

Internal Medicine · Walnut Creek, CA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
49%Service-mix similarityView profile →

Rajesh K Joshi, M.D.

Internal Medicine · Walnut Creek, CA

Shared published services
1 shared services · view billing descriptions
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes (99307)
49%Service-mix similarityView profile →

Megha Ambati

Internal Medicine · Walnut Creek, CA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
48%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.