Karen Buck, FNP
NPI 1255097309 · Family Nurse Practitioner · Rochester, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Buck, FNP is a Family Nurse Practitioner provider in Rochester, NY (NPI 1255097309).
Provider details
- NPI number
- 1255097309
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 0967572 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
4 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
65 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 65 | $72 |
Typical Medicare-allowed amounts for these services range $72–$72 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 45 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 132 | 29 |
| Amlodipine Besylate | 57 | 20 |
| Gabapentin | 56 | 12 |
| Losartan Potassium | 55 | 11 |
| Famotidine | 55 | 14 |
| Omeprazole | 48 | 15 |
| Metoprolol Succinate | 36 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-11-12
- Last updated
- 2023-07-22
- Certified
- 2022-11-15
Frequently asked questions
- What is Karen Buck's NPI number?
- Karen Buck's National Provider Identifier (NPI) is 1255097309, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Buck's specialty?
- Karen Buck is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Buck located?
- Karen Buck's practice location on file with NPPES is 777 Clinton Ave S, Rochester, NY 14620-1448.
- What is Karen Buck's phone number?
- The practice phone number listed in the NPPES registry for Karen Buck is (585) 279-4800.
- Does Karen Buck accept Medicare?
- Karen Buck is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Buck's NPI active?
- Yes — Karen Buck's NPI (1255097309) is active in the NPPES registry as of the last update on 2023-07-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.