Dr Justin Peng, MD - Medicare Rheumatology in Washington, DC

Dr Justin Peng, MD is a medicare enrolled "Internal Medicine - Rheumatology" physician in Washington, District Of Columbia. He went to Boston University School Of Medicine and graduated in 2005 and has 19 years of diverse experience with area of expertise as Rheumatology. He is a member of the group practice Inova Health Care Services, Arthritis And Rheumatism Associates Pc and his current practice location is 2021 K St Nw, Suite 300, Washington, District Of Columbia. You can reach out to his office (for appointments etc.) via phone at (301) 942-7600.

Dr Justin Peng is licensed to practice in District Of Columbia (license number MD037073) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1538328141.

Contact Information

Dr Justin Peng, MD
2021 K St Nw, Suite 300,
Washington, DC 20006-1003
(301) 942-7600
(202) 419-0418

Map and Direction




Physician's Profile

Full NameDr Justin Peng
GenderMale
SpecialityRheumatology
Experience19 Years
Location2021 K St Nw, Washington, District Of Columbia
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Justin Peng attended and graduated from Boston University School Of Medicine in 2005
  NPI Data:
  • NPI Number: 1538328141
  • Provider Enumeration Date: 06/09/2008
  • Last Update Date: 12/20/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 7517026214
  • Enrollment ID: I20081111000047

Medical Identifiers

Medical identifiers for Dr Justin Peng such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1538328141NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RR0500XInternal Medicine - Rheumatology MD037073 (District Of Columbia)Primary
207RR0500XInternal Medicine - Rheumatology D0072143 (Maryland)Secondary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Inova Health Care Services24663510931778
Arthritis And Rheumatism Associates Pc559775070348

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 Justin Peng allows following entities to bill medicare on his behalf.
Entity NameArthritis And Rheumatism Associates Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1447259866
PECOS PAC ID: 5597750703
Enrollment ID: O20040417000032

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 Justin Peng 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 Justin Peng, MD
2730 University Blvd W, Suite 310,
Wheaton, MD 20902-1905

Ph: (301) 942-7600
Dr Justin Peng, MD
2021 K St Nw, Suite 300,
Washington, DC 20006-1003

Ph: (301) 942-7600

Reviews and Comments


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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.

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