John Jainchill, M.D.
Internal Medicine Physician · Jamaica Plain, MA
John Jainchill, M.D. is an internal medicine physician with a practice address in Jamaica Plain, Massachusetts, and NPI 1831118272, issued on Jul 18, 2006. Check the license (Massachusetts 33522, 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
- John Jainchill
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 33522 MA
Self-reported in NPPES; status is on the state search - Practice location
- 545A Centre St, Jamaica Plain, MA 02130
- Phone
- (617) 522-5464
- Enumerated
- Jul 18, 2006
- Record last updated
- May 14, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (617) 522-2966
- Medicaid ID
- 2018446 MA
- Entity
- Type 1 · individual
Also registered at 545A Centre St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Yana Antonellis, N.P.Nurse Practitioner1497744981
- Joy Arm, N.P.Adult Health Nurse Practitioner1356363329
- Fadi Badlissi, M.D.Rheumatology Physician1134118714
- Mayra Cruz Polanco, M.DInternal Medicine Physician1194913012
- Shona Gibson, NPNurse Practitioner1750483129
- Catherine Kelley, NPNurse Practitioner1205938677
Verify John Jainchill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 33522Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53 internal medicine physician records list a practice address in Jamaica Plain
They are 53 of the 1,656 NPPES records with a practice address in Jamaica Plain, and 6,825 internal medicine physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 53 in Jamaica Plain → All 6,825 in Massachusetts → Every provider in Jamaica Plain →
Other internal medicine physician records in Massachusetts
- Nawal Aamir, MDWorcester, MA1588248926
- Nathan Abare, MDSpringfield, MA1386852747
- Nooshin Abbasi, MD MPHNewton, MA1831888353
- Taimur AbbasiBoston, MA1841673522
- Lauren Abbate, MDBoston, MA1922099621
- Bassima Abdallah, MDBoston, MA1912327305
- Maya Abdallah, MDBoston, MA1861854937
- Samah Abdallah, MDBrighton, MA1730814971
- Omar Abdel-Wahab, M.D.Boston, MA1023042777
- Mohab AbdelhalimBoston, MA1871388496
Common questions
What is John Jainchill, M.D.'s NPI number?
John Jainchill, M.D.'s National Provider Identifier (NPI) is 1831118272, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Jainchill, M.D. located?
The NPPES record lists a practice address at 545A Centre St, Jamaica Plain, MA, 02130. Phone: (617) 522-5464. Providers update this record themselves, so call before visiting.
How can I verify John Jainchill, M.D.'s license?
NPPES lists Massachusetts license number 33522, 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.