Neil D. Bach, MD
Sleep Medicine (Internal Medicine) Physician · Greenfield, MA
Neil D. Bach, MD is a sleep medicine (internal medicine) physician with a practice address in Greenfield, Massachusetts, and NPI 1407819626, issued on Apr 10, 2006. Check the license (Massachusetts 48251, 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.
- Name
- Neil D. Bach
- Credential
- MD
- Primary taxonomy
- Sleep Medicine (Internal Medicine) Physician 207RS0012X
- License number
- 48251 MA
Self-reported in NPPES; status is on the state search - Practice location
- 146 Federal St, Greenfield, MA 01301
- Phone
- (413) 774-2222
- Enumerated
- Apr 10, 2006
- Record last updated
- Jul 25, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (413) 774-2225
- Entity
- Type 1 · individual
Also registered at 146 Federal St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nitin Bhatnagar, D.O.Cardiovascular Disease Physician1770512485
- Mohammad Kashef, MD, MPHInterventional Cardiology Physician1306134911
Verify Neil D. Bach in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 48251Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Sleep Medicine (Internal Medicine) Physician providers in Massachusetts
There are 34 sleep medicine (internal medicine) physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other sleep medicine (internal medicine) physician records in Massachusetts
- Anjali Ahn, M.D.Boston, MA1467566182
- Amit Anand, M.D.Boston, MA1528099447
- Wassim Assaf, MDAuburn, MA1548400278
- Samia Ayub, M.B.B.SBoston, MA1801160668
- Salma Batool-Anwar, MBBS, MPHBoston, MA1285624916
- Elizabeth BengeBoston, MA1144857202
- Suzanne Bertisch, M.D., M.P.H.Boston, MA1710078936
- Rohit Budhiraja, M.D.Boston, MA1497772164
- Nilika Chaudhary, MDBoston, MA1396163986
- Ting-Hsu Chen, MDBoston, MA1235163643
Common questions
What is Neil D. Bach, MD's NPI number?
Neil D. Bach, MD's National Provider Identifier (NPI) is 1407819626, issued on Apr 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Neil D. Bach, MD located?
The NPPES record lists a practice address at 146 Federal St, Greenfield, MA, 01301. Phone: (413) 774-2222. Providers update this record themselves, so call before visiting.
How can I verify Neil D. Bach, MD's license?
NPPES lists Massachusetts license number 48251, 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.
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.