Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Jean Ru Jen Hou, MD

Individual provider Internal Medicine Physician · NPI 1750442273

Dr. Jean Ru Jen Hou, MD is an Internal Medicine in Gaithersburg, Maryland. Graduated from Rutgers New Jersey Medical School in 1998, 28 years ago. Practices with Kaiser Foundation Health Plan of the Mid Atlantic States, Inc, a 1,934-clinician group and accepts Medicare assignment. Licensed in District of Columbia, Maryland and Virginia.

Years since qualifying
28
Trained at
Rutgers New Jersey Medical School
Licensed in
DC, MD, VA
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

655 Watkins Mill Rd
Gaithersburg, MD 20879-3301
Phone: (240) 632-4000
Fax: (240) 632-4026
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence D57362 (MD)
Internal Medicine Physician Taxonomy 207R00000X · Licence 01012489214 (VA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD33664 (DC)

Record details

NPI number1750442273
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 12, 2006
Last updated in NPPESJune 11, 2021
Certification dateMay 30, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolRUTGERS NEW JERSEY MEDICAL SCHOOL
Graduated 1998 (28 years in practice)
Group practice Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc — 1934 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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