Anna Hays, M.D.
NPI 1083904379 · Hospitalist Physician · Buffalo, NY
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anna Hays, M.D. is a Hospitalist Physician provider in Buffalo, NY (NPI 1083904379).
Provider details
- NPI number
- 1083904379
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 268198 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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.
Practice location
Mailing address
Additional practice locations (1)
- 1540 Maple RdWilliamsville, NY 14221-3647Phone: (716) 568-3800Fax: (716) 323-0292
Registry dates
- Enumerated
- 2011-04-08
- Last updated
- 2025-04-07
- Certified
- 2025-04-07
Frequently asked questions
- What is Anna Hays's NPI number?
- Anna Hays's National Provider Identifier (NPI) is 1083904379, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anna Hays's specialty?
- Anna Hays is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Anna Hays located?
- Anna Hays's practice location on file with NPPES is 818 Ellicott St, Buffalo, NY 14203-1021.
- What is Anna Hays's phone number?
- The practice phone number listed in the NPPES registry for Anna Hays is (716) 323-2000.
- Does Anna Hays accept Medicare?
- Anna Hays is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anna Hays's NPI active?
- Yes — Anna Hays's NPI (1083904379) is active in the NPPES registry as of the last update on 2025-04-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.