Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Martin J Baer, O.D.
Optometrist in Woburn, MA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1336125244
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Registry record
Entity type Individual (Type 1)
Name Dr. Martin J Baer
Credential O.D.
Sex Male
Practice address 65 Pleasant St, Woburn, MA, 01801
Phone (781) 935-1025
Fax (781) 933-6110
Enumeration date Dec 22, 2005
Last updated in NPPES Apr 16, 2009
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0300713 | Medicaid | MA | - |
| 0041854 | Other | MA | AETNA INSURANCE CO. |
| 717364 | Other | MA | TUFTS HEALTH PLAN |
| W20029 | Other | MA | BLUE CROSS |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
How do I verify Martin Baer's NPI record?
Cross-check NPI 1336125244 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1336125244 active?
Yes, as of the latest NPPES snapshot, NPI 1336125244 is active (record last updated 2009-04-16).
Other providers at this practice address
Browse all → Warren S. Baer, Dmd, PC Dental Clinic/Center · Woburn, MA NPI 1548352917 Zoey Tolchin Optometrist · Woburn, MA NPI 1861684557 Clear View Eye Associates, P.C. Optometrist · Woburn, MA NPI 1558557017 Martin J. Baer, O.D.,P.C. Optometrist · Woburn, MA NPI 1912196858 Advanced Dentistry LLC Dental Clinic/Center · Woburn, MA NPI 1851602445 Cherry Harika Dentist · Woburn, MA NPI 1346597986 Julian Basha Dmd Pllc General Practice Dentistry · Woburn, MA NPI 1215529920
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-04-16.