Mary Phelan, NP
NPI 1790793321 · Family Nurse Practitioner · Buffalo, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Phelan, NP is a Family Nurse Practitioner provider in Buffalo, NY (NPI 1790793321).
Provider details
- NPI number
- 1790793321
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- F332356-1 (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 tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tramadol Hcl | 100 | 100 |
| Oxycodone Hcl | 94 | 94 |
| Cephalexin | 49 | 49 |
| Meloxicam | 19 | 19 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 18 | 18 |
| Ondansetronbrand: Ondansetron Odt | 16 | 16 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-03
- Last updated
- 2018-08-24
Frequently asked questions
- What is Mary Phelan's NPI number?
- Mary Phelan's National Provider Identifier (NPI) is 1790793321, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Phelan's specialty?
- Mary Phelan is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Phelan located?
- Mary Phelan's practice location on file with NPPES is 85 High St, Buffalo, NY 14203.
- What is Mary Phelan's phone number?
- The practice phone number listed in the NPPES registry for Mary Phelan is (716) 630-1000.
- Does Mary Phelan accept Medicare?
- Mary Phelan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Phelan's NPI active?
- Yes — Mary Phelan's NPI (1790793321) is active in the NPPES registry as of the last update on 2018-08-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.