Henry Chun, MD
NPI 1952489502 · Gastroenterology Physician · Redwood City, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Henry Chun, MD is a Gastroenterology Physician provider in Redwood City, CA (NPI 1952489502).
Provider details
- NPI number
- 1952489502
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A63282 (CA)
Specialties & taxonomies
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 294 | 291 |
| Pantoprazole Sodium | 109 | 43 |
| Dicyclomine Hcl | 58 | 17 |
| Amitriptyline Hcl | 40 | 15 |
| Rifaximinbrand: Xifaxan | 35 | — |
| Prucalopride Succinatebrand: Motegrity | 34 | — |
| Mesalamine | 31 | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2021-12-09
Frequently asked questions
- What is Henry Chun's NPI number?
- Henry Chun's National Provider Identifier (NPI) is 1952489502, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Henry Chun's specialty?
- Henry Chun is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Henry Chun located?
- Henry Chun's practice location on file with NPPES is 1150 Veterans Blvd, Redwood City, CA 94063-2037.
- What is Henry Chun's phone number?
- The practice phone number listed in the NPPES registry for Henry Chun is (650) 299-2000.
- Does Henry Chun accept Medicare?
- Henry Chun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Henry Chun's NPI active?
- Yes — Henry Chun's NPI (1952489502) is active in the NPPES registry as of the last update on 2021-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.