Jeffrey Hayer, M.D.
NPI 1811035975 · Orthopaedic Surgery Physician · Greenfield, MA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jeffrey Hayer, M.D. is a Orthopaedic Surgery Physician provider in Greenfield, MA (NPI 1811035975).
Provider details
- NPI number
- 1811035975
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 50730 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-02
- Last updated
- 2020-03-12
- Certified
- 2020-03-12
Frequently asked questions
- What is Jeffrey Hayer's NPI number?
- Jeffrey Hayer's National Provider Identifier (NPI) is 1811035975, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffrey Hayer's specialty?
- Jeffrey Hayer is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Jeffrey Hayer located?
- Jeffrey Hayer's practice location on file with NPPES is 48 Sanderson Street, Greenfield, MA 01301-2778.
- What is Jeffrey Hayer's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Hayer is (413) 773-2220.
- Does Jeffrey Hayer accept Medicare?
- Jeffrey Hayer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jeffrey Hayer's NPI active?
- Yes — Jeffrey Hayer's NPI (1811035975) is active in the NPPES registry as of the last update on 2020-03-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.