NPPES file of Aug 9, 2026

Jeffrey Michael Hayer, M.D.

Orthopaedic Surgery Physician · Greenfield, MA

Jeffrey Michael Hayer, M.D. is an orthopaedic surgery physician with a practice address in Greenfield, Massachusetts, and NPI 1811035975, issued on Feb 2, 2007. Check the license (Massachusetts 50730, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811035975
Name
Jeffrey Michael Hayer
Credential
M.D.
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License number
50730 MA
Self-reported in NPPES; status is on the state search
Practice location
48 Sanderson Street, Greenfield, MA 01301
Phone
(413) 773-2220
Enumerated
Feb 2, 2007
Record last updated
Mar 12, 2020 (not updated in 6 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest orthopaedic surgery physician records → All 692 in Massachusetts → Look up another NPI →

Also registered at 48 Sanderson Street

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Megan Bower, CNM, NPAdvanced Practice Midwife1770748360
  2. Katherine Cameron, PA-CMedical Physician Assistant1942469119
  3. Mary Casartello, CNMAdvanced Practice Midwife1609880756
  4. Kaitlin Debbink, MDSurgery Physician1437417052
  5. Stephen Fox, MDSurgery Physician1750357448
  6. Ariel Gallant Bernstein, M.D.Pediatrics Physician1902195365

Verify Jeffrey Michael Hayer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 50730    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

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Jeffrey Michael Hayer among 692 orthopaedic surgery physician records in Massachusetts

Jeffrey Michael Hayer, M.D. is one of 692 orthopaedic surgery physician records with a practice address in Massachusetts. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 48% of them.

  • NPI issued2007 · 48% of these records are older, 42% newer
  • In a Medicare fileNo · 76% of these records are
  • In the CMS Doctors and Clinicians fileNo · 64% of these records are
  • Record last updated2020 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Surgery Physician providers in Massachusetts

There are 692 orthopaedic surgery physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 692 in Massachusetts → Every provider in Greenfield → Orthopaedic Surgery Physician nationwide →

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Brian Hoffman, MDGreenfield, MA 013011346244167
  2. Osama Al-Masri, M.D.Athol, MA 013311144216946
  3. Edwin Mohler, M.D.Williamstown, MA 012671831157221
  4. Charles Kenny, M.D.Stockbridge, MA 012621457352601
  5. Jonathan Cluett, MDNorth Adams, MA 012471083650824
  6. Suk Namkoong, MDNorth Adams, MA 012471639123672
  7. Eric White, M.D.North Adams, MA 012471972540185
  8. Robert Josell, M.D.Lanesboro, MA 012371225327125

Common questions

What is Jeffrey Michael Hayer, M.D.'s NPI number?

Jeffrey Michael Hayer, M.D.'s National Provider Identifier (NPI) is 1811035975, issued on Feb 2, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Jeffrey Michael Hayer, M.D. located?

The NPPES record lists a practice address at 48 Sanderson Street, Greenfield, MA, 01301. Phone: (413) 773-2220. Providers update this record themselves, so call before visiting.

How can I verify Jeffrey Michael Hayer, M.D.'s license?

NPPES lists Massachusetts license number 50730, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.