NPI Portal NPI Lookup & Verification

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

Irving L Gold, MD

Nephrology Physician in Houston, TX · enumerated 2006 · practices at Southwest Nephrology Associates, LLP.

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

National Provider Identifier

1184659260

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Registry record

Entity type Individual (Type 1)
Name Irving L Gold
Credential MD
Sex Male
Practice address Houston, TX, 77074
Phone (713) 988-8776
Fax (713) 988-8662
Enumeration date Jul 11, 2006
Last updated in NPPES Aug 20, 2018

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

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License G1662 (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
113715006 Medicaid TX -
113715005 Medicaid TX -
113715002 Medicaid TX -
390004961 Other - RAILROAD GBA
0081BF Other - BCBS#
8BF370 Other TX BCBS

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

What specialty is Irving Gold?
Irving Gold is registered in NPPES with the primary taxonomy of Nephrology 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-08-20.