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Compare the published Medicare service mix of Tammera Lynn Cord-Gregory, FNP with clinicians in the same registry specialty: Family Nurse Practitioner.

TEMPE, AZ · Exact areaEdit location

2024 published service data · 60 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Lynn G Fredes

Family Nurse Practitioner · Tempe, AZ

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 low level of medical decision making, if using time, 30 minutes or more (99203)
100%Service-mix similarityView profile →

Alzetta Clay Obahiagbon

Family Nurse Practitioner · Tempe, AZ

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 low level of medical decision making, if using time, 30 minutes or more (99203)
100%Service-mix similarityView profile →

Linda C. Stover, NP

Family Nurse Practitioner · Tempe, AZ

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 low level of medical decision making, if using time, 30 minutes or more (99203)
100%Service-mix similarityView profile →

Susan Elna Vovakes, RN,MS FNP-C

Family Nurse Practitioner · Tempe, AZ

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 low level of medical decision making, if using time, 30 minutes or more (99203)
99%Service-mix similarityView profile →

Jane Martineau, FNP-C

Family Nurse Practitioner · Tempe, AZ

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 low level of medical decision making, if using time, 30 minutes or more (99203)
85%Service-mix similarityView profile →

Alyssa Vecchio, NP

Family Nurse Practitioner · Tempe, AZ

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 low level of medical decision making, if using time, 30 minutes or more (99203)
84%Service-mix similarityView profile →

Danae Reiners

Family Nurse Practitioner · Tempe, AZ

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 low level of medical decision making, if using time, 30 minutes or more (99203)
83%Service-mix similarityView profile →

Renee Karen Chase, MS-FNP

Family Nurse Practitioner · Tempe, AZ

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 low level of medical decision making, if using time, 30 minutes or more (99203)
74%Service-mix similarityView profile →

Angela M Griffin, FNP

Family Nurse Practitioner · Tempe, AZ

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 low level of medical decision making, if using time, 30 minutes or more (99203)
74%Service-mix similarityView profile →

Stephanie Theresa Ford

Family Nurse Practitioner · Tempe, AZ

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)
73%Service-mix similarityView profile →

Camera Ann Lumumba, FNP

Family Nurse Practitioner · Tempe, AZ

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 low level of medical decision making, if using time, 30 minutes or more (99203)
70%Service-mix similarityView profile →

Angela Monique Dudley, DNP, ARNP, FNP-C

Family Nurse Practitioner · Tempe, AZ

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 low level of medical decision making, if using time, 30 minutes or more (99203)
69%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.