Gregory Tiao, MD
NPI 1083794036 · Surgery Physician · Palo Alto, CA
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Tiao, MD is a Surgery Physician provider in Palo Alto, CA (NPI 1083794036).
Provider details
- NPI number
- 1083794036
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 52167 (KY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 3333 Burnet AveMl 2023Cincinnati, OH 45229-3039Phone: (513) 636-4371Fax: (513) 636-7657
Registry dates
- Enumerated
- 2006-10-16
- Last updated
- 2025-12-15
- Certified
- 2025-12-15
Frequently asked questions
- What is Gregory Tiao's NPI number?
- Gregory Tiao's National Provider Identifier (NPI) is 1083794036, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Tiao's specialty?
- Gregory Tiao is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Tiao located?
- Gregory Tiao's practice location on file with NPPES is 725 Welch Rd, Palo Alto, CA 94304-1601.
- What is Gregory Tiao's phone number?
- The practice phone number listed in the NPPES registry for Gregory Tiao is (650) 497-8000.
- Does Gregory Tiao accept Medicare?
- Gregory Tiao is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Tiao's NPI active?
- Yes — Gregory Tiao's NPI (1083794036) is active in the NPPES registry as of the last update on 2025-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.