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Compare the published Medicare service mix of Robert Callahan, MD with clinicians in the same registry specialty: Family Medicine.

DES MOINES, IA · Exact areaEdit location

2024 published service data · 104 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jasmina Sabic, DO

Family Medicine · Des Moines, IA

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)
  • Hemoglobin a1c level (83036)
86%Service-mix similarityView profile →

Michael Blaess, DO

Family Medicine · Des Moines, IA

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)
  • Hemoglobin a1c level (83036)
85%Service-mix similarityView profile →

Eric Paul Neill, DO

Family Medicine · Des Moines, IA

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)
  • Hemoglobin a1c level (83036)
  • Insertion of needle into vein for collection of blood sample (36415)
80%Service-mix similarityView profile →

Jeffrey L Bebensee, MD

Family Medicine · Des Moines, IA

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)
  • Hemoglobin a1c level (83036)
78%Service-mix similarityView profile →

Samia Abdulrahim Harkin, D.O.

Family Medicine · Des Moines, IA

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)
  • Insertion of needle into vein for collection of blood sample (36415)
77%Service-mix similarityView profile →

Sudeep Gupta, DO

Family Medicine · Des Moines, IA

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)
  • Hemoglobin a1c level (83036)
77%Service-mix similarityView profile →

William F Maher, DO

Family Medicine · Des Moines, IA

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)
  • Hemoglobin a1c level (83036)
76%Service-mix similarityView profile →

Nathan Michael Thomas

Family Medicine · Des Moines, IA

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)
  • Insertion of needle into vein for collection of blood sample (36415)
75%Service-mix similarityView profile →

Geoffrey Abram Jung, DO

Family Medicine · Des Moines, IA

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)
  • Hemoglobin a1c level (83036)
74%Service-mix similarityView profile →

Samantha Algrim, MD

Family Medicine · Des Moines, IA

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)
  • Insertion of needle into vein for collection of blood sample (36415)
73%Service-mix similarityView profile →

Matthew Molin, D.O.

Family Medicine · Des Moines, IA

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)
  • Hemoglobin a1c level (83036)
73%Service-mix similarityView profile →

Holley A Bermel, D.O.

Family Medicine · Des Moines, IA

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)
  • Hemoglobin a1c level (83036)
72%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.