Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Jack F. Lay Jr., M.D.

Anesthesiology Physician in Marble Falls, TX · enumerated 2006.

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

National Provider Identifier

1063472728

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Registry record

Entity type Individual (Type 1)

Name Dr. Jack F. Lay Jr.

Credential M.D.

Sex Male

Practice address 810 W Highway 71, Marble Falls, TX, 78654

Phone (830) 201-8000

Fax (830) 201-8008

Enumeration date Mar 27, 2006

Last updated in NPPES May 1, 2024

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License K3604 (TX) 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
050078721	Other	TX	RR/MEDICARE
1410532-02	Other	TX	CSHCN
8A3369	Other	TX	BLUE SHIELD
1410532-01	Medicaid	TX	-

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

What specialty is Jack Lay?

Jack Lay is registered in NPPES with the primary taxonomy of Anesthesiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-01.