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

Dr. David Edward Blocker, MD, MPH

Internal Medicine Physician in Granbury, TX · enumerated 2005.

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

National Provider Identifier

1265428700

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Registry record

Entity type Individual (Type 1)

Name Dr. David Edward Blocker

Credential MD, MPH

Sex Male

Practice address Granbury, TX, 76048

Phone (817) 579-9357

Fax (817) 579-9363

Enumeration date Sep 20, 2005

Last updated in NPPES Mar 7, 2023

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

Taxonomy & licenses

2083P0901X Public Health & General Preventive Medicine Physician Allopathic & Osteopathic Physicians · License K2651 (TX) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License K2651 (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
386974507	Medicaid	TX	-
386974505	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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify David Blocker's NPI record?

Cross-check NPI 1265428700 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1265428700 active?

Yes, as of the latest NPPES snapshot, NPI 1265428700 is active (record last updated 2023-03-07).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.