Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Truett Layton Maddox, MD
Psychiatry Physician in Roswell, NM · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1356305536
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Registry record
Entity type Individual (Type 1)
Name Dr. Truett Layton Maddox
Credential MD
Sex Male
Practice address 405 W Country Club Rd, Roswell, NM, 88201
Phone (575) 624-4777
Fax (575) 624-8711
Enumeration date Apr 14, 2006
Last updated in NPPES Sep 14, 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 |
|---|---|---|---|
| NM001X06 | Other | NM | BCBS |
| W3115 | Medicaid | NM | - |
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
What specialty is Truett Maddox?
Truett Maddox is registered in NPPES with the primary taxonomy of Psychiatry Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
Other providers at this practice address
Browse all → Hany Yassa Hospitalist Physician · Roswell, NM NPI 1003802463 Bernadette Saiz Internal Medicine Physician · Roswell, NM NPI 1811984453 Steven Black Psychiatry Physician · Roswell, NM NPI 1578546438 Eric Cohen Cardiovascular Disease Physician · Roswell, NM NPI 1720065188 Roswell Hospital Corporation General Acute Care Hospital · Roswell, NM NPI 1447221742 Roswell Hospital Corporation Medicare Defined Swing Bed Hospital Unit · Roswell, NM NPI 1568433431 Roswell Hospital Corporation Psychiatric Hospital Unit · Roswell, NM NPI 1477524346 Hamid Feroze Cardiovascular Disease Physician · Roswell, NM NPI 1568425395
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-09-14.