Mary Whistler, NP
NPI 1265433759 · Family Nurse Practitioner · Cheektowaga, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Whistler, NP is a Family Nurse Practitioner provider in Cheektowaga, NY (NPI 1265433759).
Provider details
- NPI number
- 1265433759
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- F333678 (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 tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 118 | 65 |
| Amlodipine Besylate | 100 | 58 |
| Levothyroxine Sodium | 88 | 51 |
| Lisinopril | 64 | 32 |
| Metformin Hcl | 52 | 28 |
| Hydrochlorothiazide | 41 | 18 |
| Rosuvastatin Calcium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$81 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-09
- Last updated
- 2007-11-21
Frequently asked questions
- What is Mary Whistler's NPI number?
- Mary Whistler's National Provider Identifier (NPI) is 1265433759, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Whistler's specialty?
- Mary Whistler is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Whistler located?
- Mary Whistler's practice location on file with NPPES is 539 Cleveland Dr, Cheektowaga, NY 14225-1080.
- What is Mary Whistler's phone number?
- The practice phone number listed in the NPPES registry for Mary Whistler is (716) 834-9486.
- Does Mary Whistler accept Medicare?
- Mary Whistler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Whistler's NPI active?
- Yes — Mary Whistler's NPI (1265433759) is active in the NPPES registry as of the last update on 2007-11-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.