Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

E. John R. Samuel, M.D.

Cardiovascular Disease Physician in Spring, TX · enumerated 2006.

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

National Provider Identifier

1801862156

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name E. John R. Samuel

Credential M.D.

Sex Male

Practice address 21848 Holzwarth Rd Ste 110, Spring, TX, 77388

Phone (281) 446-2999

Enumeration date Feb 27, 2006

Last updated in NPPES Apr 16, 2025

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License G6391 (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
127469801	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

What is the NPI number for E. John Samuel?

The National Provider Identifier (NPI) for E. John Samuel is 1801862156, a Type 1 (individual) record in the CMS NPPES registry.

Where does E. John Samuel practice?

The practice location on file with NPPES is in Spring, TX. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Madeline Woelfel Family Nurse Practitioner · Spring, TX NPI 1457289043

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-16.