Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Eileen Elisabeth Van Diest, M.D.

Endocrinology, Diabetes & Metabolism Physician in Boerne, TX · enumerated 2008 · practices at Eileen Van Diest, MD, PA.

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

National Provider Identifier

1356515217

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Registry record

Entity type Individual (Type 1)

Name Dr. Eileen Elisabeth Van Diest

Credential M.D.

Sex Female

Practice address Boerne, TX, 78006

Phone (830) 219-4162

Fax (830) 310-7974

Enumeration date Apr 22, 2008

Last updated in NPPES Oct 4, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License M7978 (TX) Secondary

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License M7978 (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.

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Frequently asked questions

Is NPI 1356515217 active?

Yes, as of the latest NPPES snapshot, NPI 1356515217 is active (record last updated 2023-10-04).

How do I verify Eileen Van Diest's NPI record?

Cross-check NPI 1356515217 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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Eileen Van Diest, MD, PA Endocrinology, Diabetes & Metabolism Physician · Boerne, TX NPI 1487227385

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-04.