Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ather J Siddiqi, MD

Pulmonary Disease Physician in The Woodlands, TX · enumerated 2005.

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

National Provider Identifier

1700874716

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Registry record

Entity type Individual (Type 1)

Name Ather J Siddiqi

Credential MD

Sex Male

Practice address 1111 Medical Plaza Dr, Suite 250, The Woodlands, TX, 77380

Phone (281) 296-8788

Fax (281) 419-1291

Enumeration date Oct 12, 2005

Last updated in NPPES Nov 21, 2014

Taxonomy & licenses

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License K5207 (TX) Primary

207RS0012X Sleep Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License K5207 (TX) Secondary

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License K5207 (TX) Secondary

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
043889703	Medicaid	TX	-
043889702	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

What specialty is Ather Siddiqi?

Ather Siddiqi is registered in NPPES with the primary taxonomy of Pulmonary Disease 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 2014-11-21.