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Compare the published Medicare service mix of Brian Joseph Callahan, MSN, APRN, FNP-C with clinicians in the same registry specialty: Family Nurse Practitioner.

CLEARWATER, FL · Exact areaEdit location

2024 published service data · 64 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Bradley William Mckay, APRN, FNP-C

Family Nurse Practitioner · Clearwater, FL

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
78%Service-mix similarityView profile →

Tameckia Reece, APRN

Family Nurse Practitioner · Clearwater, FL

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
70%Service-mix similarityView profile →

Rachelle Mae Peklinsky, FNP-BC

Family Nurse Practitioner · Clearwater, FL

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
41%Service-mix similarityView profile →

Hayley Rose Kemp, APRN

Family Nurse Practitioner · Clearwater, FL

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
40%Service-mix similarityView profile →

Michael Gordon Dilling, FNP-C

Family Nurse Practitioner · Clearwater, FL

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
23%Service-mix similarityView profile →

Ysulin Nmn Parrado, APRN

Family Nurse Practitioner · Clearwater, FL

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
23%Service-mix similarityView profile →

Jan Denise Green, APRN

Family Nurse Practitioner · Clearwater, FL

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
21%Service-mix similarityView profile →

Nicole Begovic

Family Nurse Practitioner · Clearwater, FL

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
13%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.