Alexandra Karnyski, FNP
NPI 1013535913 · Family Nurse Practitioner · Rochester, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexandra Karnyski, FNP is a Family Nurse Practitioner provider in Rochester, NY (NPI 1013535913).
Provider details
- NPI number
- 1013535913
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 346114 (NY)
Specialties & taxonomies
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
5 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
82 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 68 | $53 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 14 | $108 |
Typical Medicare-allowed amounts for these services range $53–$108 (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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 154 | 70 |
| Solifenacin Succinate | 87 | 36 |
| Vibegronbrand: Gemtesa | 74 | 28 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 60 | 43 |
| Mirabegronbrand: Myrbetriq | 60 | 25 |
| Cephalexin | 55 | 26 |
| Estradiol | 52 | 34 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-07-08
- Last updated
- 2023-07-03
- Certified
- 2021-02-05
Frequently asked questions
- What is Alexandra Karnyski's NPI number?
- Alexandra Karnyski's National Provider Identifier (NPI) is 1013535913, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexandra Karnyski's specialty?
- Alexandra Karnyski is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Alexandra Karnyski located?
- Alexandra Karnyski's practice location on file with NPPES is 158 Sawgrass Dr, Rochester, NY 14620-4648.
- What is Alexandra Karnyski's phone number?
- The practice phone number listed in the NPPES registry for Alexandra Karnyski is (585) 275-2838.
- Does Alexandra Karnyski accept Medicare?
- Alexandra Karnyski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexandra Karnyski's NPI active?
- Yes — Alexandra Karnyski's NPI (1013535913) is active in the NPPES registry as of the last update on 2023-07-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.