William Berquist, MD
NPI 1659461457 · Pediatric Gastroenterology Physician · Palo Alto, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Berquist, MD is a Pediatric Gastroenterology Physician provider in Palo Alto, CA (NPI 1659461457).
Provider details
- NPI number
- 1659461457
- Entity type
- Individual
- Primary specialty
- Pediatric Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G32783 (CA)
Specialties & taxonomies
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
1 documented practice location
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
Registry dates
- Enumerated
- 2006-10-13
- Last updated
- 2024-04-18
- Certified
- 2024-04-18
Frequently asked questions
- What is William Berquist's NPI number?
- William Berquist's National Provider Identifier (NPI) is 1659461457, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Berquist's specialty?
- William Berquist is listed in the NPPES registry with a primary specialty of Pediatric Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is William Berquist located?
- William Berquist's practice location on file with NPPES is 725 Welch Rd, Palo Alto, CA 94304-1601.
- What is William Berquist's phone number?
- The practice phone number listed in the NPPES registry for William Berquist is (650) 723-4000.
- Does William Berquist accept Medicare?
- William Berquist is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Berquist's NPI active?
- Yes — William Berquist's NPI (1659461457) is active in the NPPES registry as of the last update on 2024-04-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.