Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. James W Roh, MD

Hospitalist Physician in Orange, CA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1033222500

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Registry record

Entity type Individual (Type 1)

Name Dr. James W Roh

Credential MD

Sex Male

Practice address 2501 E Chapman Ave, Orange, CA, 92869

Phone (714) 639-9401

Fax (714) 639-7095

Enumeration date Aug 17, 2006

Last updated in NPPES Nov 10, 2021

Taxonomy & licenses

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License G88140 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
1912919804	Other	-	NPI - TYPE 2
P00719652	Other	CA	RAIL ROAD MEDICARE - PROVIDER PTAN
GR0003350	Other	CA	MEDICAID - GROUP PROVIDER
CG5665	Other	CA	RAIL ROAD MEDICARE - GROUP PTAN
W1514	Other	CA	MEDICARE PTAN - TYPE 2

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What specialty is James Roh?

James Roh is registered in NPPES with the primary taxonomy of Hospitalist Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-10.