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Compare the published Medicare service mix of Aaron Matthew Rivkin, MD with clinicians in the same registry specialty: Addiction Medicine · Family Practice (CMS).

MI · Exact areaEdit location

2024 published service data · 15 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

James P Twesten-Otoole, MD

Addiction Medicine · Family Practice (CMS) · Norton Shores, MI

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)
  • 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)
73%Service-mix similarityView profile →

Carl Woodrow Christensen, MD

Addiction Medicine · Gynecological Oncology · Obstetrics/Gynecology (CMS) · Ypsilanti, MI

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)
  • Testing for presence of drug, read by direct observation (80305)
73%Service-mix similarityView profile →

Jaclyn Randel, MD

Addiction Medicine · Family Practice (CMS) · Ypsilanti, MI

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)
  • Testing for presence of drug, read by direct observation (80305)
73%Service-mix similarityView profile →

William Ray Morrone, DO

Addiction Medicine (CMS) · Essexville, MI

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)
  • Testing for presence of drug, read by direct observation (80305)
72%Service-mix similarityView profile →

Mira Grace, MD

Addiction Medicine · Family Practice (CMS) · Clinton Township, MI

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)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
67%Service-mix similarityView profile →

Morgan Fox, DO

Family Practice (CMS) · Livonia, MI

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)
  • 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)
58%Service-mix similarityView profile →

Michael L. Fox, D.O.

Addiction Medicine · Family Practice (CMS) · Livonia, MI

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 hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
51%Service-mix similarityView profile →

Timothy Gammons, D.O.

Addiction Medicine · Family Practice (CMS) · Sterling Heights, MI

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)
49%Service-mix similarityView profile →

Philip Alain Gilly, MD

Addiction Medicine · Family Practice (CMS) · Westland, MI

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)
44%Service-mix similarityView profile →

Arun Gupta, MD

Addiction Medicine · Family Practice (CMS) · Monroe, MI

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)
  • Testing for presence of drug, read by direct observation (80305)
42%Service-mix similarityView profile →

Ismael David Yanga, M.D.

Addiction Medicine · Family Practice (CMS) · Brighton, MI

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)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
35%Service-mix similarityView profile →

Robert Patrick Mcmorrow, D.O.

Emergency Medicine (CMS) · Houghton Lake, MI

Shared published services
1 shared services · view billing descriptions
  • Testing for presence of drug, read by direct observation (80305)
12%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.