Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

James Henry Roum, MD

Critical Care Medicine (Internal Medicine) Physician in Orange, CA · enumerated 2006.

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

National Provider Identifier

1477633626

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Registry record

Entity type Individual (Type 1)

Name James Henry Roum

Credential MD

Sex Male

Practice address 1010 W La Veta Ave Ste 750, Orange, CA, 92868

Phone (714) 639-9401

Fax (714) 919-8804

Enumeration date Oct 16, 2006

Last updated in NPPES Jul 21, 2022

Taxonomy & licenses

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License G62370 (CA) Secondary

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License G62370 (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	Medicaid	CA	-
G62370	Other	CA	MEDICAL LICENSE
P00703134	Other	CA	RAIL ROAD MEMBER PTAN
1912919804	Other	CA	TYPE 2 NPI
CG5665	Other	CA	RAIL ROAD GROUP PTAN

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 Roum?

James Roum is registered in NPPES with the primary taxonomy of Critical Care Medicine (Internal Medicine) 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.

Other providers at this practice address

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Joseph Preston Critical Care Medicine (Internal Medicine) Physician · Orange, CA NPI 1457329674 Peter Fotinakes Sleep Medicine (Internal Medicine) Physician · Orange, CA NPI 1679542518 Tackson Tam Internal Medicine Physician · Orange, CA NPI 1548239635 Sarah Mosko Clinical Psychologist · Orange, CA NPI 1992774491 Stephen Loughran Family Nurse Practitioner · Orange, CA NPI 1801865308 Reza Mina-Araghi Critical Care Medicine (Internal Medicine) Physician · Orange, CA NPI 1699785279 Pulmonary Consultants & Primary Care Physicians Medical Group, Inc. Pulmonary Disease Physician · Orange, CA NPI 1912919804 Shahid Hayat Critical Care Medicine (Internal Medicine) Physician · Orange, CA NPI 1316047913

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.