James Shieh, M.D
NPI 1639198930 · Emergency Medicine Physician · Antioch, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Shieh, M.D is a Emergency Medicine Physician provider in Antioch, CA (NPI 1639198930).
Provider details
- NPI number
- 1639198930
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- No
- License
- A40594 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-18
- Last updated
- 2007-11-09
Frequently asked questions
- What is James Shieh's NPI number?
- James Shieh's National Provider Identifier (NPI) is 1639198930, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Shieh's specialty?
- James Shieh is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Shieh located?
- James Shieh's practice location on file with NPPES is 3901 Lone Tree Way, Antioch, CA 94509-6200.
- What is James Shieh's phone number?
- The practice phone number listed in the NPPES registry for James Shieh is (925) 779-7273.
- Does James Shieh accept Medicare?
- James Shieh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Shieh's NPI active?
- Yes — James Shieh's NPI (1639198930) is active in the NPPES registry as of the last update on 2007-11-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.