NPI Portal NPI Lookup & Verification

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

Mary Lynn Miller, M.D.

Ophthalmology Physician in Leominster, MA · enumerated 2005.

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

National Provider Identifier

1487642070

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Registry record

Entity type Individual (Type 1)
Name Mary Lynn Miller
Credential M.D.
Sex Female
Practice address Leominster, MA, 01453
Enumeration date Oct 9, 2005
Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 40168 (MA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
0801700 Other MA UNITED HEALTH CARE
AA30748 Other MA HARVARDPILGRIM
9900841 Other MA FALLON COMMUNITY HEALTH P
3748795 Other MA AETNA HEALTH INSURANCE PR
6195474 Medicaid MA -
717866 Other MA TUFTS HEALTH PLAN
B30168 Other MA BLUE CROSS BLUE SHIELD

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

How do I verify Mary Miller's NPI record?
Cross-check NPI 1487642070 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1487642070 active?
Yes, as of the latest NPPES snapshot, NPI 1487642070 is active (record last updated 2007-07-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.