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Compare the published Medicare service mix of Chidao L Nguyen, DO with clinicians in the same registry specialty: Internal Medicine (CMS).

CA · 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.

Leslee H Devies, D.O.

Hospitalist (CMS) · Redding, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Critical care, first 30-74 minutes (99291)
86%Service-mix similarityView profile →

Piyal P Patel, DO

Hospitalist · Internal Medicine · Osteopathic Manipulative Medicine (CMS) · Emeryville, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Critical care, first 30-74 minutes (99291)
86%Service-mix similarityView profile →

Jack Shenouda, M.D.

Internal Medicine (CMS) · Oxnard, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Critical care, first 30-74 minutes (99291)
86%Service-mix similarityView profile →

Ronald Ray Sarmiento Guzman, MD

Hospitalist · Internal Medicine (CMS) · Roseville, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Critical care, first 30-74 minutes (99291)
85%Service-mix similarityView profile →

Mark Garfinkle, MD

Hospitalist · Internal Medicine (CMS) · Redding, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Critical care, first 30-74 minutes (99291)
84%Service-mix similarityView profile →

Jagdeep Singh Tung, MD

Internal Medicine (CMS) · Manhattan Beach, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Critical care, first 30-74 minutes (99291)
84%Service-mix similarityView profile →

Movses Kazanchyan, MD

Hospitalist · Internal Medicine (CMS) · Mission Hills, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Critical care, first 30-74 minutes (99291)
82%Service-mix similarityView profile →

Mohammed Siddiqui, M.B.B.S

Internal Medicine (CMS) · Bakersfield, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Critical care, first 30-74 minutes (99291)
80%Service-mix similarityView profile →

Ali Azizi, M.D.

Family Practice (CMS) · Mission Hills, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Critical care, first 30-74 minutes (99291)
80%Service-mix similarityView profile →

Patrycya Sulsh, M.D.

Hospitalist · Internal Medicine (CMS) · Roseville, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Critical care, first 30-74 minutes (99291)
80%Service-mix similarityView profile →

Angad Rai, M.D.

Hospitalist (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Critical care, first 30-74 minutes (99291)
80%Service-mix similarityView profile →

Tigran Tiraturyan, M.D.

Internal Medicine (CMS) · Glendale, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Critical care, first 30-74 minutes (99291)
79%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.