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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ellen Marie Guthrie, MD

Obstetrics & Gynecology Physician in Medford, MA · enumerated 2006 · practices at Mystick Women'S Health, Inc..

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

National Provider Identifier

1538133343

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Registry record

Entity type Individual (Type 1)
Name Ellen Marie Guthrie
Credential MD
Sex Female
Practice address 13 Bradlee Rd, Medford, MA, 02155
Phone (781) 395-1110
Fax (781) 395-8553
Enumeration date Feb 16, 2006
Last updated in NPPES Sep 27, 2011

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 60673 (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
3102661 Medicaid MA -
9711601 Medicaid MA -

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 1538133343 active?
Yes, as of the latest NPPES snapshot, NPI 1538133343 is active (record last updated 2011-09-27).
How do I verify Ellen Guthrie's NPI record?
Cross-check NPI 1538133343 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 2011-09-27.