Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David M Rider, M.D.

Family Medicine Physician in Seguin, TX · enumerated 2008.

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

National Provider Identifier

1326202185

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Registry record

Entity type Individual (Type 1)

Name Dr. David M Rider

Credential M.D.

Sex Male

Practice address 1414 East Walnut, Seguin, TX, 78155

Phone (830) 379-7901

Fax (830) 401-0737

Enumeration date Jul 10, 2008

Last updated in NPPES Aug 5, 2014

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License M8283 (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
0076SK	Other	TX	BLUE CROSS / BLUE SHIELD ID #
P00829322	Other	-	MEDICARE RAILROAD PROVIDER PTAN
2089773-01	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

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.

What specialty is David Rider?

David Rider is registered in NPPES with the primary taxonomy of Family Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Arlynn Hartfiel Family Medicine Physician · Seguin, TX NPI 1063461549

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-08-05.