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Compare the published Medicare service mix of Mary J Keegan, APN with clinicians in the same registry specialty: Nurse Practitioner (CMS).

SAINT LOUIS, MO · Exact areaEdit location

2024 published service data · 136 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Angela Kaye Higgins, AGNP

Nurse Practitioner (CMS) · Saint Louis, MO

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
65%Service-mix similarityView profile →

Amy Louise Mueller, AGNP

Nurse Practitioner (CMS) · Saint Louis, MO

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)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
57%Service-mix similarityView profile →

Lisa Cathleen Winter, ANP

Nurse Practitioner (CMS) · Saint Louis, MO

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)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
54%Service-mix similarityView profile →

Shannon L Tucker, AGPCNP

Nurse Practitioner (CMS) · Saint Louis, MO

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
52%Service-mix similarityView profile →

Elena Kozaryuk

Nurse Practitioner (CMS) · Saint Louis, MO

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 →

Allyson M Granden, NP-C

Specialty details in registry · Saint Louis, MO

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 →

Emmy Thuy Le, DNP, APRN, FNP-BC

Nurse Practitioner (CMS) · Saint Louis, MO

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 →

Lisa G Elles-Borrson, APRN,BC

Nurse Practitioner (CMS) · Saint Louis, MO

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 →

Michelle Anne Maurer, AGNP

Nurse Practitioner (CMS) · Saint Louis, MO

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 →

Holly S Comer, ANP

Nurse Practitioner (CMS) · Saint Louis, MO

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 →

Lynelle A Jolliff, ANP

Nurse Practitioner (CMS) · Saint Louis, MO

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
45%Service-mix similarityView profile →

Brandy L Raich, ANP

Nurse Practitioner (CMS) · Saint Louis, MO

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)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
44%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.