WILLIAM I. HAN, M.D. INC
NPI 1831381664, an organization in FOUNTAIN VALLEY, CA 92708.
- NPI
- 1831381664
- Entity type
- Organization (type 2)
- Status
- Active
- Practice location
- FOUNTAIN VALLEY, CA 92708
- Enumerated
- 2007-08-15
- Last updated
- 2012-04-11
curl https://api.healthcare.dev/v1/providers/1831381664 \ -H "Authorization: Bearer $HDEV_API_KEY"
NPPES
Taxonomy codes
- 261Q00000X Primary
Codes from the Health Care Provider Taxonomy code set; their names belong to the NUCC and aren't shown here.
Official record
The CMS NPI Registry is the official source for this NPI: NPI 1831381664 in the NPI Registry.
Use it
Look up 1831381664 from code or an agent
curl https://api.healthcare.dev/v1/providers/1831381664 \ -H "Authorization: Bearer $HDEV_API_KEY"
Using the healthcare.dev MCP server, look up NPI 1831381664. Tell me the provider's name, whether it is an individual or an organization, whether the NPI is active, its taxonomy codes and its practice city and state.
Source: CMS NPPES file, release 2026-11. Public (FOIA-disclosable). Registry data as CMS publishes it, not a verification of credentials, licensure or enrollment.