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Compare the published Medicare service mix of Sarah Lynn Spencer with clinicians in the same registry specialty: Obstetrics & Gynecology.

MI · Exact areaEdit location

2024 published service data · 449 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Laura Marie Downing, M.D.

Obstetrics & Gynecology · Chelsea, MI

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
100%Service-mix similarityView profile →

Jon Peter Lensmeyer, MD

Obstetrics & Gynecology · Port Huron, MI

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
100%Service-mix similarityView profile →

Victor Joseph Cherfan, D.O.

Obstetrics & Gynecology · Adrian, MI

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
89%Service-mix similarityView profile →

Christina Margarita Andreozzi, M.D.

Obstetrics & Gynecology · Saginaw, MI

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
85%Service-mix similarityView profile →

Travis D Terrell, MD

Obstetrics & Gynecology · Battle Creek, MI

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
82%Service-mix similarityView profile →

Robert A Starr, M.D.

Obstetrics & Gynecology · Beverly Hills, MI

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
79%Service-mix similarityView profile →

Julianna Friesen, D.O.

Obstetrics & Gynecology · Grand Blanc, MI

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
78%Service-mix similarityView profile →

Katherine Mccormick, M.D

Obstetrics & Gynecology · Muskegon, MI

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
78%Service-mix similarityView profile →

Amanda Keating Walker, D.O.

Obstetrics & Gynecology · Kalamazoo, MI

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
77%Service-mix similarityView profile →

Vickie B Mello, DO

Obstetrics & Gynecology · Saginaw, MI

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
77%Service-mix similarityView profile →

Suzanne Marie Galloway, M.D.

Obstetrics & Gynecology · Muskegon, MI

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
77%Service-mix similarityView profile →

Felicia Jade Drouillard, MD

Obstetrics & Gynecology · Detroit, MI

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
77%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.