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

Austin Liu, MD

Dermatology Physician in Doylestown, PA · enumerated 2008.

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

National Provider Identifier

1679735351

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Registry record

Entity type Individual (Type 1)
Name Austin Liu
Credential MD
Sex Male
Practice address Doylestown, PA, 18901
Phone (215) 345-6647
Enumeration date Jun 25, 2008
Last updated in NPPES Apr 3, 2026

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

Taxonomy & licenses

207ND0101X MOHS-Micrographic Surgery Physician Allopathic & Osteopathic Physicians · License MD448908 (PA) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License LP01437 (RI) Secondary
207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License MD448908 (PA) Primary
207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 4301095221 (MI) Secondary
207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 25MA09145600 (NJ) 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.

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Frequently asked questions

Where does Austin Liu practice?
The practice location on file with NPPES is in Doylestown, PA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Austin Liu?
The National Provider Identifier (NPI) for Austin Liu is 1679735351, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-03.