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

CA · Exact areaEdit location

2024 published service data · 80 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Mairead Joan Torsney-Weir, MD

Family Practice · Geriatric Medicine (CMS) · Marina Del Rey, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
70%Service-mix similarityView profile →

Roger Nguyen Tran, MD

Family Practice · Geriatric Medicine (CMS) · Laguna Hills, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)
69%Service-mix similarityView profile →

Elaine Roh, MD

Family Practice · Geriatric Medicine (CMS) · Pomona, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes (99305)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
68%Service-mix similarityView profile →

Maria Delie Ty Jumagdao-Sakai, M.D.

Family Practice · Geriatric Medicine (CMS) · Gilroy, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
65%Service-mix similarityView profile →

Michael L Richardson, M.D.

Family Practice · General Surgery (CMS) · Vacaville, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes (99305)
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)
60%Service-mix similarityView profile →

Basil Colin Hamblin, MD

Family Practice · Geriatric Medicine · Hospice/Palliative Care (CMS) · Point Reyes Station, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes (99305)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
60%Service-mix similarityView profile →

Jorge A Rivero, MD

Family Practice · Geriatric Medicine (CMS) · Laguna Hills, 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)
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)
60%Service-mix similarityView profile →

Hamid Eskandari, MD

Family Practice · Geriatric Medicine (CMS) · Foothill Ranch, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes (99305)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
59%Service-mix similarityView profile →

Faraz Raza Zaidi, M.D.

Family Practice · Geriatric Medicine (CMS) · Carmichael, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)
58%Service-mix similarityView profile →

Ashkan Javaheri, M.D.

Geriatric Medicine (CMS) · Sacramento, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes (99305)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
57%Service-mix similarityView profile →

Shantharam Pai, M.D.

Specialty details in registry · San Bernardino, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes (99305)
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)
57%Service-mix similarityView profile →

Minerva Catalan Navarro, MD

Geriatric Medicine (CMS) · Mountain View, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
57%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.