Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Greg Stewart Mclauchlin, M.D.
Neurology Physician in Houston, TX · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1023004694
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Registry record
Entity type Individual (Type 1)
Name Greg Stewart Mclauchlin
Credential M.D.
Sex Male
Practice address 7505 Main St, Suite 290, Houston, TX, 77030
Phone (713) 795-0074
Fax (713) 795-5203
Enumeration date Sep 20, 2005
Last updated in NPPES Nov 20, 2020
Taxonomy & licenses
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 |
|---|---|---|---|
| 8K1154 | Other | TX | BCBS |
| 158083901 | Medicaid | TX | - |
| 3579429 | Other | TX | AETNA |
| P00006717 | Other | TX | RAILROAD MEDICARE |
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.
Frequently asked questions
How do I verify Greg Mclauchlin's NPI record?
Cross-check NPI 1023004694 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1023004694 active?
Yes, as of the latest NPPES snapshot, NPI 1023004694 is active (record last updated 2020-11-20).
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-11-20.