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

Dr. Alana Ruth Spiwak, MD

Psychiatry Physician in Bellaire, TX · enumerated 2006 · practices at Terry W Ott DDS Inc.

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

National Provider Identifier

1477664704

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Registry record

Entity type Individual (Type 1)

Name Dr. Alana Ruth Spiwak

Credential MD

Sex Female

Practice address Bellaire, TX, 77401

Phone (713) 874-1892

Fax (713) 874-1894

Enumeration date Aug 31, 2006

Last updated in NPPES May 27, 2021

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

Taxonomy & licenses

102L00000X Psychoanalyst Behavioral Health & Social Service Providers · License G2141 (TX) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License G2141 (TX) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Alana Spiwak?

Alana Spiwak 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-27.