Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Thomas Merrick, M.D.

Orthopaedic Surgery of the Spine Physician in Tyler, TX · enumerated 2009.

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

National Provider Identifier

1558590976

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Registry record

Entity type Individual (Type 1)

Name Michael Thomas Merrick

Credential M.D.

Sex Male

Practice address 3414 Golden Rd, Tyler, TX, 75701

Phone (903) 939-7500

Enumeration date Jul 7, 2009

Last updated in NPPES Apr 22, 2025

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License Q2803 (TX) Secondary

207XS0117X Orthopaedic Surgery of the Spine Physician Allopathic & Osteopathic Physicians · License Q2803 (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

How do I verify Michael Merrick's NPI record?

Cross-check NPI 1558590976 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1558590976 active?

Yes, as of the latest NPPES snapshot, NPI 1558590976 is active (record last updated 2025-04-22).

Other providers at this practice address

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James Harris Orthopaedic Surgery Physician · Tyler, TX NPI 1487640173 Robert Dennis Sports Medicine (Orthopaedic Surgery) Physician · Tyler, TX NPI 1467448159 Paul Chlapek Surgical Physician Assistant · Tyler, TX NPI 1770571093 Forrest Persing Surgical Physician Assistant · Tyler, TX NPI 1851389175 Todd Raabe Orthopaedic Surgery of the Spine Physician · Tyler, TX NPI 1730177056 John Priddy Orthopaedic Foot and Ankle Surgery Physician · Tyler, TX NPI 1891783122 John Walker Orthopaedic Surgery Physician · Tyler, TX NPI 1710975032 Carey Clark Orthopaedic Hand Surgery Physician · Tyler, TX NPI 1841288156

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-22.