Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David S Schlager, M.D.

Psychiatry Physician in Austin, TX · enumerated 2006.

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

National Provider Identifier

1710918206

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Registry record

Entity type Individual (Type 1)

Name Dr. David S Schlager

Credential M.D.

Sex Male

Practice address 5900 Balcones Drive, # 25544, Austin, TX, 78731

Phone (516) 810-0437

Enumeration date Jul 5, 2006

Last updated in NPPES Aug 14, 2026

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License G137265 (CA) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License N8347 (TX) Primary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 151833 (NY) Secondary

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 David Schlager?

David Schlager 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 2026-08-14.