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David Matthew Maahs, MD, PHD

David Matthew Maahs is a Pediatric Endocrinology Physician provider (Pediatrics) practicing in Stanford, CA, registered in the NPPES registry with NPI 1205853884 since 2006. The credential MD stands for Doctor of Medicine.

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NPI 1205853884
Entity type Individual (Type 1)
Name David Matthew Maahs
Credential MD, PHD
Sex Male
Practice address 300 PASTEUR DR, Stanford, CA, 94305
Phone 6507234000
Enumeration date 2006-07-17
Last updated in NPPES 2024-04-26

Taxonomy & licenses

Taxonomy code Specialty Primary License State
208000000X Pediatrics Physician Secondary 44711 CO
2080P0205X Pediatric Endocrinology Physician Primary C145798 CA

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

Copy-ready billing details
Provider: David Maahs, MD, PHD
NPI: 1205853884
Taxonomy: 2080P0205X (Pediatric Endocrinology Physician)
Address: 300 PASTEUR DR, Stanford, CA, 94305

Other providers at this practice address

NPI Name Type Specialty Location
1982600342 Gregory Welsh Individual Hospitalist Physician Stanford, CA
1841296779 Theresa Mallick-Searle Individual Nurse Practitioner Stanford, CA
1629074364 James Rhee Individual Pain Medicine (Physical Medicine & Rehabilitation) Physician Stanford, CA
1497752802 Sankar Niranjan Individual Nephrology Physician Stanford, CA
1144227182 Neha Shah Individual Rheumatology Physician Stanford, CA
1750389250 Hyma Vempaty Individual Hematology (Internal Medicine) Physician Stanford, CA
1902805559 Maria Mangini Individual Family Nurse Practitioner Stanford, CA
1578563383 Catherine Salem Individual Radiation Oncology Physician Stanford, CA

Verify this record

Cross-check NPI 1205853884 against the authoritative CMS record: view David Matthew Maahs on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What specialty is David Maahs?
David Maahs is registered in NPPES with the primary taxonomy of Pediatric Endocrinology 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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2024-04-26.