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William Metzger, MD
NPI 1629040308 · Gastroenterology Physician · Orange, CA
William Metzger, MD is a Gastroenterology Physician provider in Orange, CA (NPI 1629040308).
Provider details
- NPI number
- 1629040308
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G21079 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
1010 W La Veta Ave
Suite 570
Orange, CA 92868-4300
Phone: (714) 835-7700
Fax: (714) 835-8145
Street-level locationGet directions
Mailing address
1010 W La Veta Ave
Orange, CA 92868-4300
Registry dates
- Enumerated
- 2006-02-06
- Last updated
- 2014-09-03
Frequently asked questions
- What is William Metzger's NPI number?
- William Metzger's National Provider Identifier (NPI) is 1629040308, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Metzger's specialty?
- William Metzger is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is William Metzger located?
- William Metzger's practice location on file with NPPES is 1010 W La Veta Ave, Orange, CA 92868-4300.
- What is William Metzger's phone number?
- The practice phone number listed in the NPPES registry for William Metzger is (714) 835-7700.
- Is William Metzger's NPI active?
- Yes — William Metzger's NPI (1629040308) is active in the NPPES registry as of the last update on 2014-09-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.