John M. O'Loughlin, M.D.
Allergy Physician · Leominster, MA
John M. O'Loughlin, M.D. is an allergy physician with a practice address in Leominster, Massachusetts, and NPI 1477648582, issued on Oct 4, 2006. Check the license (Massachusetts 28368, 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 M. O'Loughlin
- Credential
- M.D.
- Primary taxonomy
- Allergy Physician 207KA0200X
- License number
- 28368 MA
Self-reported in NPPES; status is on the state search - Practice location
- 80 Erdman Way, Leominster, MA 01453
- Phone
- (978) 537-4805
- Enumerated
- Oct 4, 2006
- Record last updated
- Jun 13, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (978) 537-2185
- Medicaid ID
- 6167373 MA
- Entity
- Type 1 · individual
Also registered at 80 Erdman Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ivy AkoteySocial Worker1669987673
- Gina AngeliniStudent in an Organized Health Care Education/Training Program1073994943
- Justine BarlowDevelopmental Therapist1992444392
- Eduardo BatallasMental Health Counselor1861733453
- Christine BreenMental Health Counselor1235660275
- Lawrence Brenner, D.M.D.Specialist1942284534
Verify John M. O'Loughlin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 28368Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Allergy Physician providers in Massachusetts
There are 37 allergy physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other allergy physician records in Massachusetts
- Donald Accetta, M.D., M.P.HTaunton, MA1891798138
- Priyal Amin, DOWestford, MA1174784045
- Theresia Bajusz, MDBrookline, MA1699853820
- Sachin Baxi, M.D.Boston, MA1053375626
- Wilfred Beaucher, MDChelmsford, MA1932109055
- Joel Bleier, MDMedford, MA1912904624
- Ralph Cahaly, M.D.Milford, MA1790778553
- Mark Claus, M.D.Brockton, MA1518910686
- Geraldine Feldman, M.D.Leominster, MA1467457523
- Robert Gedachian, MDWorcester, MA1144324716
Common questions
What is John M. O'Loughlin, M.D.'s NPI number?
John M. O'Loughlin, M.D.'s National Provider Identifier (NPI) is 1477648582, issued on Oct 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John M. O'Loughlin, M.D. located?
The NPPES record lists a practice address at 80 Erdman Way, Leominster, MA, 01453. Phone: (978) 537-4805. Providers update this record themselves, so call before visiting.
How can I verify John M. O'Loughlin, M.D.'s license?
NPPES lists Massachusetts license number 28368, 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.