Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Jean Ru Jen Hou, MD

Q: What is the NPI number for Jean Hou?

The National Provider Identifier (NPI) for Jean Hou is 1750442273, a Type 1 (individual) record in the CMS NPPES registry.

Internal Medicine Physician in Gaithersburg, MD · enumerated 2006.

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

National Provider Identifier

1750442273

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Registry record

Entity type Individual (Type 1)

Name Dr. Jean Ru Jen Hou

Credential MD

Sex Female

Practice address 655 Watkins Mill Rd, Gaithersburg, MD, 20879

Phone (240) 632-4000

Fax (240) 632-4026

Enumeration date Dec 12, 2006

Last updated in NPPES Jun 11, 2021

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 01012489214 (VA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD33664 (DC) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License D57362 (MD) Primary

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

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Jean Hou practice?

The practice location on file with NPPES is in Gaithersburg, MD. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Jean Hou?

The National Provider Identifier (NPI) for Jean Hou is 1750442273, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-11.