Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Gregory Ming Tiao, MD
Surgery Physician in Palo Alto, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1083794036
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Registry record
Entity type Individual (Type 1)
Name Gregory Ming Tiao
Credential MD
Sex Male
Practice address 725 Welch Rd, Palo Alto, CA, 94304
Phone (650) 497-8000
Enumeration date Oct 16, 2006
Last updated in NPPES Dec 15, 2025
Taxonomy & licenses
2086S0120X Pediatric Surgery Physician Allopathic & Osteopathic Physicians · License 52167 (KY) Secondary
204F00000X Transplant Surgery Physician Allopathic & Osteopathic Physicians · License G84888 (CA) Secondary
2086S0120X Pediatric Surgery Physician Allopathic & Osteopathic Physicians · License 01081810A (IN) Secondary
2086S0120X Pediatric Surgery Physician Allopathic & Osteopathic Physicians · License G84888 (CA) Secondary
2086S0120X Pediatric Surgery Physician Allopathic & Osteopathic Physicians · License 35.065006 (OH) 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.
Frequently asked questions
What is the NPI number for Gregory Tiao?
The National Provider Identifier (NPI) for Gregory Tiao is 1083794036, a Type 1 (individual) record in the CMS NPPES registry.
Where does Gregory Tiao practice?
The practice location on file with NPPES is in Palo Alto, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Fred Laningham Pediatric Radiology Physician · Palo Alto, CA NPI 1962405753 David Ansel Developmental - Behavioral Pediatrics Physician · Palo Alto, CA NPI 1376547612 Allen Eskenazi Pediatrics Physician · Palo Alto, CA NPI 1487658332 Mohamed Hasan Neonatal-Perinatal Medicine Physician · Palo Alto, CA NPI 1538164470 Erin Holsinger Pediatrics Physician · Palo Alto, CA NPI 1003817347 Francisco Alvarez Hospitalist Physician · Palo Alto, CA NPI 1174525612 Katayoon Shahinfar Pediatrics Physician · Palo Alto, CA NPI 1700874559 Veronica Rooks Pediatric Radiology Physician · Palo Alto, CA NPI 1457341935
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-15.