Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Derrick Wayne Ratcliff Jr.

Clinical & Laboratory Immunology (Allergy & Immunology) Physician in Houston, TX · enumerated 2020.

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

National Provider Identifier

1174149967

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Registry record

Entity type Individual (Type 1)

Name Dr. Derrick Wayne Ratcliff Jr.

Sex Male

Practice address 14405 Walters Rd, Houston, TX, 77014

Phone (346) 360-6478

Enumeration date Jun 17, 2020

Last updated in NPPES Jun 17, 2020

Taxonomy & licenses

207KI0005X Clinical & Laboratory Immunology (Allergy & Immunology) Physician Allopathic & Osteopathic Physicians · License AA8776 (TX) Primary

Other identifiers

Identifier	Type	State	Issuer
9489	Medicaid	TX	-
AA8776	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

Is NPI 1174149967 active?

Yes, as of the latest NPPES snapshot, NPI 1174149967 is active (record last updated 2020-06-17).

How do I verify Derrick Ratcliff's NPI record?

Cross-check NPI 1174149967 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-06-17.