Phuong Nguyen, M.D.
NPI 1154342871 · Pediatric Gastroenterology Physician · Palo Alto, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Phuong Nguyen, M.D. is a Pediatric Gastroenterology Physician provider in Palo Alto, CA (NPI 1154342871).
Provider details
- NPI number
- 1154342871
- Entity type
- Individual
- Primary specialty
- Pediatric Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A83319 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
5 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$58 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (4)
- 455 Oconnor DrSan Jose, CA 95128-1633Phone: (408) 283-7676
- 2039 Forest Ave Ste 105San Jose, CA 95128-4815Phone: (408) 947-2929
- 1333 Meridian AveSan Jose, CA 95125-5212Phone: (408) 445-3400
- 1642 E Capitol ExpySan Jose, CA 95121-1800Phone: (408) 445-3431
Registry dates
- Enumerated
- 2006-07-21
- Last updated
- 2025-06-09
- Certified
- 2025-06-09
Frequently asked questions
- What is Phuong Nguyen's NPI number?
- Phuong Nguyen's National Provider Identifier (NPI) is 1154342871, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Phuong Nguyen's specialty?
- Phuong Nguyen is listed in the NPPES registry with a primary specialty of Pediatric Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Phuong Nguyen located?
- Phuong Nguyen's practice location on file with NPPES is 750 Welch Rd, Palo Alto, CA 94304-1507.
- What is Phuong Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Phuong Nguyen is (650) 723-5070.
- Does Phuong Nguyen accept Medicare?
- Phuong Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Phuong Nguyen's NPI active?
- Yes — Phuong Nguyen's NPI (1154342871) is active in the NPPES registry as of the last update on 2025-06-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.