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Compare the published Medicare service mix of April Zumwalt, DNP, APRN, FNP-C with clinicians in the same registry specialty: Family Nurse Practitioner.

LAWTON, OK · Exact areaEdit location

2024 published service data · 31 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Cathy Sue Carns, ARNP

Family Nurse Practitioner · Lawton, OK

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) (87880)
60%Service-mix similarityView profile →

Sarala Thapa Shrestha, FNP

Family Nurse Practitioner · Lawton, OK

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)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
  • Automated urinalysis test (81003)
59%Service-mix similarityView profile →

Susan Ann Armour, APRN-CNP

Family Nurse Practitioner · Lawton, OK

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Automated urinalysis test (81003)
55%Service-mix similarityView profile →

Stephanie Morris, NP

Family Nurse Practitioner · Lawton, OK

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Automated urinalysis test (81003)
55%Service-mix similarityView profile →

Lindsey Beth Paterson, APRN, NP-C

Family Nurse Practitioner · Lawton, OK

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)
54%Service-mix similarityView profile →

Jamie Marie Ernst, FNP-APN

Family Nurse Practitioner · Lawton, OK

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Automated urinalysis test (81003)
51%Service-mix similarityView profile →

Kendra K Stacey, ARNP

Family Nurse Practitioner · Lawton, OK

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)
  • Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)
  • Automated urinalysis test (81003)
49%Service-mix similarityView profile →

Ada Diann Johnson, APRN-BC

Family Nurse Practitioner · Lawton, OK

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)
44%Service-mix similarityView profile →

Birdena Denise Aguilera, RN

Family Nurse Practitioner · Lawton, OK

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)
39%Service-mix similarityView profile →

Angela Battese, APRN FNP-C

Family Nurse Practitioner · Lawton, OK

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)
39%Service-mix similarityView profile →

Candace Michelle Flournoy, NP-C

Family Nurse Practitioner · Lawton, OK

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)
39%Service-mix similarityView profile →

Christy Scoggins, FNP

Family Nurse Practitioner · Lawton, OK

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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Automated urinalysis test (81003)
39%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.