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

Mr. James B Pfeiffer, LCSW

Clinical Social Worker in Corpus Christi, TX · enumerated 2007.

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

National Provider Identifier

1063566701

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Registry record

Entity type Individual (Type 1)

Name Mr. James B Pfeiffer

Credential LCSW

Sex Male

Practice address Corpus Christi, TX, 78411

Phone (361) 814-2273

Fax (361) 814-2274

Enumeration date Jan 22, 2007

Last updated in NPPES Apr 27, 2016

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

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 16509 (TX) Primary

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 3723 (TX) Secondary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier	Type	State	Issuer
00S10T	Other	TX	BCBS IDENTIFIER NUMBER
119744403	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.

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Frequently asked questions

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.

What specialty is James Pfeiffer?

James Pfeiffer is registered in NPPES with the primary taxonomy of Clinical Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-04-27.