Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Karin G Ayer, MD

Pediatrics Physician in Keller, TX · enumerated 2005.

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

National Provider Identifier

1649267154

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Registry record

Entity type Individual (Type 1)

Name Dr. Karin G Ayer

Credential MD

Sex Female

Practice address 10601 N Riverside Dr, Keller, TX, 76244

Phone (817) 347-2600

Fax (817) 347-2670

Enumeration date Sep 29, 2005

Last updated in NPPES Oct 16, 2023

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License M9135 (TX) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

How do I verify Karin Ayer's NPI record?

Cross-check NPI 1649267154 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1649267154 active?

Yes, as of the latest NPPES snapshot, NPI 1649267154 is active (record last updated 2023-10-16).

Other providers at this practice address

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Parul Martin Pediatrics Physician · Fort Worth, TX NPI 1659435626 Dana Landavazo Physician Assistant · Keller, TX NPI 1053597989 Sarah Nembu Family Nurse Practitioner · Fort Worth, TX NPI 1609167014 Kshitij Bhalani Pediatrics Physician · Fort Worth, TX NPI 1740609361 Kayla Smith Family Nurse Practitioner · Fort Worth, TX NPI 1801274261 Cook Children'S Medical Center Urgent Care Clinic/Center · Fort Worth, TX NPI 1255799334 Cook Children'S Medical Center Pediatrics Physician · Fort Worth, TX NPI 1154789238 Amanda Jordan Counseling Psychologist · Keller, TX NPI 1194270884

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-16.