NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Donald Roy Korb, OD

Optometrist in Boston, MA · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1851443493

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Registry record

Entity type Individual (Type 1)
Name Dr. Donald Roy Korb
Credential OD
Sex Male
Practice address Boston, MA, 02215
Fax (617) 426-4924
Enumeration date Jan 16, 2007
Last updated in NPPES Feb 29, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 2019 (MA) Primary
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
150817 Other - HARVARD PILGRIM HEALTHCAR
2019 Other - VISION BENEFITS OF AMERIC
2200579 Other - UNITED HEALTHCARE
2203336 Other - AETNA HEALTHCARE
W15419 Other MA BCBS MA
042304182 Other - VISION SERVICE PLAN
0308714 Medicaid MA -
39436000 Other - DAVIS VISION EYECARE
712889 Other MA TUFTS HEALTH PLAN

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.

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Frequently asked questions

Is NPI 1851443493 active?
Yes, as of the latest NPPES snapshot, NPI 1851443493 is active (record last updated 2012-02-29).
How do I verify Donald Korb's NPI record?
Cross-check NPI 1851443493 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-02-29.