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Compare the published Medicare service mix of Robin Mary Greb, CNP with clinicians in the same registry specialty: Nurse Practitioner.

NH · Exact areaEdit location

2024 published service data · 199 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Lisa Rappa-Mannion, APRN

Nurse Practitioner · Bedford, NH

Shared published services
2 shared services · view billing descriptions
  • Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)
  • Residence visit for new patient with high level of medical decision making, per day, if using time, at least 75 minutes (99345)
49%Service-mix similarityView profile →

Catherine Coolidge, ARNP

Nurse Practitioner · Somersworth, NH

Shared published services
2 shared services · view billing descriptions
  • Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)
  • Residence visit for new patient with high level of medical decision making, per day, if using time, at least 75 minutes (99345)
33%Service-mix similarityView profile →

Jennifer R Owens, AGNP-C

Nurse Practitioner · Nashua, NH

Shared published services
1 shared services · view billing descriptions
  • Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)
25%Service-mix similarityView profile →

Kathryn Macy Carson, NURSE PACTITIONER

Nurse Practitioner · Keene, NH

Shared published services
1 shared services · view billing descriptions
  • Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)
15%Service-mix similarityView profile →

Haley Paige Mcdougal, APRN

Nurse Practitioner · Rochester, NH

Shared published services
1 shared services · view billing descriptions
  • Administration of influenza virus vaccine (G0008)
10%Service-mix similarityView profile →

Lynne England, ARNP

Nurse Practitioner · Pelham, NH

Shared published services
1 shared services · view billing descriptions
  • Administration of influenza virus vaccine (G0008)
9%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.