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Compare the published Medicare service mix of Champak Venkitachalam, MD, MPH with clinicians in the same registry specialty: Family Practice (CMS).

CA · Exact areaEdit location

2024 published service data · 116 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Kalpana Sathyanarayana Rao, M.D.

Family Practice · Hospitalist (CMS) · Vallejo, 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)
  • Hospital discharge day management, more than 30 minutes (99239)
69%Service-mix similarityView profile →

Eugene L Kim, MD

Family Practice (CMS) · Panorama City, 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)
  • Hospital discharge day management, more than 30 minutes (99239)
58%Service-mix similarityView profile →

Jasneet Mann

Family Practice · Hospitalist (CMS) · Visalia, 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)
  • Hospital discharge day management, more than 30 minutes (99239)
57%Service-mix similarityView profile →

Evita Joseph, MD

Family Practice (CMS) · Ukiah, 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)
  • Hospital discharge day management, more than 30 minutes (99239)
56%Service-mix similarityView profile →

Keri Montgomery, NP

Nurse Practitioner (CMS) · St. Helena, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
54%Service-mix similarityView profile →

David Moaddel, M.D.

Family Practice (CMS) · West 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 35 minutes (99232)
  • Hospital discharge day management, more than 30 minutes (99239)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
45%Service-mix similarityView profile →

Frank B Arian, M.D.

General Practice (CMS) · Palm Springs, 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 high level of medical decision making, if using time, 40 minutes or more (99215)
44%Service-mix similarityView profile →

Shakti Dayal Srivastava, MD, FAAFP

Family Practice (CMS) · Bakersfield, 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)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
43%Service-mix similarityView profile →

Jeffrey Luther, M.D.

Family Practice (CMS) · Long Beach, 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)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
42%Service-mix similarityView profile →

Tamara Z Maher, D.O

Family Practice (CMS) · Los Alamitos, 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 high level of medical decision making, if using time, 40 minutes or more (99215)
42%Service-mix similarityView profile →

Maryin Judith Altamirano, MD

Family Practice (CMS) · Beaumont, 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 high level of medical decision making, if using time, 40 minutes or more (99215)
42%Service-mix similarityView profile →

Marigangaiah Mahadev, MD

General Practice (CMS) · Anaheim Hills, CA

Shared published services
1 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)
42%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.