Dr Jean Ru Jen Hou, MD - Medicare Internal Medicine in Gaithersburg, MD

Dr Jean Ru Jen Hou, MD is a medicare enrolled "Internal Medicine" physician in Gaithersburg, Maryland. She went to Rutgers New Jersey Medical School and graduated in 1998 and has 26 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Kaiser Foundation Health Plan Of The Mid-atlantic States, Inc, Kaiser Foundation Health Plan Of The Mid-atlantic States, Inc and her current practice location is 655 Watkins Mill Rd, Gaithersburg, Maryland. You can reach out to her office (for appointments etc.) via phone at (240) 632-4000.

Dr Jean Ru Jen Hou is licensed to practice in Maryland (license number D57362) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1750442273.

Contact Information

Dr Jean Ru Jen Hou, MD
655 Watkins Mill Rd,
Gaithersburg, MD 20879-3301
(240) 632-4000
(240) 632-4026

Map and Direction




Physician's Profile

Full NameDr Jean Ru Jen Hou
GenderFemale
SpecialityInternal Medicine
Experience26 Years
Location655 Watkins Mill Rd, Gaithersburg, Maryland
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Jean Ru Jen Hou attended and graduated from Rutgers New Jersey Medical School in 1998
  NPI Data:
  • NPI Number: 1750442273
  • Provider Enumeration Date: 12/12/2006
  • Last Update Date: 06/11/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 6204986425
  • Enrollment ID: I20090610000241

Medical Identifiers

Medical identifiers for Dr Jean Ru Jen Hou such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1750442273NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 01012489214 (Virginia)Secondary
207R00000XInternal Medicine MD33664 (District Of Columbia)Secondary
207R00000XInternal Medicine D57362 (Maryland)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Kaiser Foundation Health Plan Of The Mid-atlantic States, Inc37794958581628
Kaiser Foundation Health Plan Of The Mid-atlantic States, Inc37794958581628

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Jean Ru Jen Hou allows following entities to bill medicare on her behalf.
Entity NameKaiser Foundation Health Plan Of The Mid-atlantic States, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952461816
PECOS PAC ID: 3779495858
Enrollment ID: O20040105000308

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Jean Ru Jen Hou is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Jean Ru Jen Hou, MD
2101 E Jefferson St, Kaiser Permanente Medicare Enrollment,
Rockville, MD 20852-4908

Ph: (301) 816-2424
Dr Jean Ru Jen Hou, MD
655 Watkins Mill Rd,
Gaithersburg, MD 20879-3301

Ph: (240) 632-4000

Reviews and Comments


Internal Medicine Doctors in Gaithersburg, MD

Diane Mukherjee, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 7 Metropolitan Ct Ste 1, Gaithersburg, MD 20878
Phone: 240-773-0300    
Dr. Kathleen Frekko Farrell, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 818 West Diamond Avenue, Ste 130, Gaithersburg, MD 20878
Phone: 301-948-8780    Fax: 301-519-9093
Dr. Alan Vinitsky, M.D
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 902 Wind River Ln Ste 201, Gaithersburg, MD 20878
Phone: 301-840-0002    Fax: 301-417-0262
Qiufang Cheng, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 16009 Comprint Cir, Gaithersburg, MD 20877
Phone: 301-339-8264    Fax: 301-339-8257
Miranda Kai Hunter, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 655 Watkins Mill Rd, Gaithersburg, MD 20879
Phone: 240-813-8740    
Dr. Tuanh Tonnu, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 9057 Shady Grove Ct, Gaithersburg, MD 20877
Phone: 301-721-1614    Fax: 301-721-1624
Dr. Suhair A Abulfarag, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 604 S Frederick Ave Ste 413, Gaithersburg, MD 20877
Phone: 301-330-4414    Fax: 301-216-1637

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.