Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marilyn J Ayer, APRN

Family Nurse Practitioner in Tell City, IN · enumerated 2006.

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

National Provider Identifier

1275500241

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Registry record

Entity type Individual (Type 1)

Name Marilyn J Ayer

Credential APRN

Sex Female

Practice address 27 East Highway 66, Tell City, IN, 47586

Phone (812) 395-2011

Fax (270) 395-2012

Enumeration date Mar 8, 2006

Last updated in NPPES Jan 10, 2011

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 1025505 (KY) Secondary

163W00000X Registered Nurse Nursing Service Providers · License 28049367A (IN) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 71002269A (IN) Primary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 3002878 (KY) Secondary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN credential

Other identifiers

Identifier	Type	State	Issuer
200878830	Medicaid	IN	-
7801574000	Medicaid	KY	-
000000498490	Other	-	ANTHEM # - CHS, INC.

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1275500241 active?

Yes, as of the latest NPPES snapshot, NPI 1275500241 is active (record last updated 2011-01-10).

How do I verify Marilyn Ayer's NPI record?

Cross-check NPI 1275500241 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-01-10.