John J. Weiter, MD PHD
Ophthalmology Physician · Peabody, MA
John J. Weiter, MD PHD is an ophthalmology physician with a practice address in Peabody, Massachusetts, and NPI 1992795421, issued on Oct 26, 2005. Check the license (Massachusetts 37856, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- John J. Weiter
- Credential
- MD PHD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 37856 MA
Self-reported in NPPES; status is on the state search - Practice location
- 39 Cross St Ste 201, Peabody, MA 01960
- Phone
- (978) 854-5090
- Enumerated
- Oct 26, 2005
- Record last updated
- Apr 9, 2024
- Fax
- (978) 854-5755
- Medicaid ID
- 2048949 MA
- Medicare enrollment
- Enrolled (PECOS I20050511000473); accepts Medicare assignment
- Medical or professional school
- University Of Chicago, Pritzker School Of Medicine, 1968
- Entity
- Type 1 · individual
Also registered at 39 Cross St Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Namrata Nandakumar, MDOphthalmology Physician1932364817
Verify John J. Weiter in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 37856Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average ophthalmology physician in 2024
72 Medicare Part D claims for 26 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims.
Most prescribed
- Latanoprost51 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- John J Weiter MD PCPeabody, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ophthalmology Physician providers in Massachusetts
There are 791 ophthalmology physician records in Massachusetts.
Other ophthalmology physician records in Massachusetts
- Mark Abelson, M.D.Andover, MA1811990682
- Inas Aboobakar, M.D.Boston, MA1760846265
- Omar Abuqamar, M.D., M.M.S.C.,Burlington, MA1437640414
- Alessandro Adad Jammal, MD, PHDBoston, MA1518725480
- David Agahigian, M.D.Springfield, MA1205822293
- Kanika Agarwal, MDBoston, MA1245692433
- Muna Ahmad, M.D.Leominster, MA1588830145
- Lloyd Aiello, M.D., PH.D.Boston, MA1588622104
- Motasem Al-Latayfeh, M.D.Boston, MA1184855710
- Pierre Alfred, MDAthol, MA1912998501
Common questions
What is John J. Weiter, MD PHD's NPI number?
John J. Weiter, MD PHD's National Provider Identifier (NPI) is 1992795421, issued on Oct 26, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John J. Weiter, MD PHD located?
The NPPES record lists a practice address at 39 Cross St Ste 201, Peabody, MA, 01960. Phone: (978) 854-5090. Providers update this record themselves, so call before visiting.
How can I verify John J. Weiter, MD PHD's license?
NPPES lists Massachusetts license number 37856, 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.
How much does John J. Weiter, MD PHD prescribe under Medicare Part D?
In 2024, John J. Weiter, MD PHD had 72 Medicare Part D claims for 26 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.