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Mrs. Cathy H Lay, MD

Family Medicine Physician in Helena, MT · enumerated 2006.

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

National Provider Identifier

1508952037

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Registry record

Entity type Individual (Type 1)
Name Mrs. Cathy H Lay
Credential MD
Sex Female
Practice address 3330 Ptarmigan Ln, Helena, MT, 59602
Phone (406) 457-4180
Fax (406) 495-7935
Enumeration date Oct 4, 2006
Last updated in NPPES Oct 5, 2011

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 12761 (MT) Primary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 26738 (SC) Secondary
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
267384 Medicaid SC -
12761 Other MT MONTANA STATE MEDICAL LICENSE NUMBER

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 1508952037 active?
Yes, as of the latest NPPES snapshot, NPI 1508952037 is active (record last updated 2011-10-05).
How do I verify Cathy Lay's NPI record?
Cross-check NPI 1508952037 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 2011-10-05.