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Compare the published Medicare service mix of David Gregory Gerst, M.D. with clinicians in the same registry specialty: Internal Medicine.

ROCHESTER, MI · Exact areaEdit location

2024 published service data · 20 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Kathryn Mcgee Hinderer, D.O.

Internal Medicine · Rochester, 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)
  • Insertion of needle into vein for collection of blood sample (36415)
  • 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 →

Adam Hull

Internal Medicine · Rochester, 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)
  • Insertion of needle into vein for collection of blood sample (36415)
  • Hemoglobin a1c level (83036)
50%Service-mix similarityView profile →

Jason Clement Whateley, DO

Internal Medicine · Rochester, 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)
  • Insertion of needle into vein for collection of blood sample (36415)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
48%Service-mix similarityView profile →

Amanda Chivu Brannick, M.D.

Internal Medicine · Rochester, 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)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
40%Service-mix similarityView profile →

Abdelwahab Meri, M.D.

Internal Medicine · Rochester, 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)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
36%Service-mix similarityView profile →

Maha M Ghalib, MD

Internal Medicine · Rochester, 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)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
31%Service-mix similarityView profile →

Shahed Muhammad Hussain, MD

Internal Medicine · Rochester, 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)
  • Insertion of needle into vein for collection of blood sample (36415)
  • Urinalysis, manual test (81002)
27%Service-mix similarityView profile →

Ghazala Zafar, M.D.

Internal Medicine · Rochester, 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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
  • Administration of influenza virus vaccine (G0008)
25%Service-mix similarityView profile →

Ahmed Zaki

Internal Medicine · Rochester, 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)
  • Insertion of needle into vein for collection of blood sample (36415)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
19%Service-mix similarityView profile →

Zachary Wade Johnson, MD

Internal Medicine · Rochester, 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)
  • Insertion of needle into vein for collection of blood sample (36415)
18%Service-mix similarityView profile →

Vesna Tegeltija, M.D.

Internal Medicine · Rochester, 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)
  • Insertion of needle into vein for collection of blood sample (36415)
17%Service-mix similarityView profile →

Firas Ido, M.D.

Internal Medicine · Rochester, 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)
15%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.