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

Stephen Michael Sims, MD

Pain Medicine Physician in Huntsville, TX · enumerated 2006.

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

National Provider Identifier

1083623136

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Registry record

Entity type Individual (Type 1)

Name Stephen Michael Sims

Credential MD

Sex Male

Practice address Huntsville, TX, 77340

Phone (936) 730-8833

Fax (936) 730-8866

Enumeration date Aug 7, 2006

Last updated in NPPES Dec 11, 2019

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

Taxonomy & licenses

208VP0000X Pain Medicine Physician Allopathic & Osteopathic Physicians · License J7288 (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
118109106	Medicaid	TX	-
8G5120	Other	TX	BCBS
050089129	Other	TX	MEDICARE RAILROAD

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 Stephen Sims's NPI record?

Cross-check NPI 1083623136 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1083623136 active?

Yes, as of the latest NPPES snapshot, NPI 1083623136 is active (record last updated 2019-12-11).

Other providers at this practice address

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John Williamson Pain Medicine Physician · Huntsville, TX NPI 1922069186 Anisa Gopalani Pain Medicine Physician · Huntsville, TX NPI 1174535033

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-12-11.