Joy I Onaghise, MD - Medicare Internal Medicine in Upper Marlboro, MD

Joy I Onaghise, MD is a medicare enrolled "Internal Medicine" physician in Upper Marlboro, Maryland. She graduated from medical school in 2009 and has 15 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 1221 Mercantile Ln, Upper Marlboro, Maryland. You can reach out to her office (for appointments etc.) via phone at (301) 618-5500.

Joy I Onaghise is licensed to practice in Maryland (license number D0085309) 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 1679958565.

Contact Information

Joy I Onaghise, MD
1221 Mercantile Ln,
Upper Marlboro, MD 20774
(301) 618-5500
Not Available

Map and Direction




Physician's Profile

Full NameJoy I Onaghise
GenderFemale
SpecialityInternal Medicine
Experience15 Years
Location1221 Mercantile Ln, Upper Marlboro, 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:
  • Joy I Onaghise graduated from medical school in 2009
  NPI Data:
  • NPI Number: 1679958565
  • Provider Enumeration Date: 07/21/2015
  • Last Update Date: 06/21/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 8426300427
  • Enrollment ID: I20181002001997

Medical Identifiers

Medical identifiers for Joy I Onaghise such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1679958565NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine D0085309 (Maryland)Primary
390200000XStudent In An Organized Health Care Education/training Program (* (Not Available))Secondary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Kaiser Foundation Health Plan Of The Mid-atlantic States,inc37794958581673
Kaiser Foundation Health Plan Of The Mid-atlantic States,inc37794958581673

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. Joy I Onaghise 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. Joy I Onaghise 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
Joy I Onaghise, MD
2101 East Jefferson Street, Suite 6w Ppqa,
Rockville, MD 20852-4908

Ph: (301) 816-5853
Joy I Onaghise, MD
1221 Mercantile Ln,
Upper Marlboro, MD 20774

Ph: (301) 618-5500

Reviews and Comments


Internal Medicine Doctors in Upper Marlboro, MD

Dr. Eugene Aloysius Magee Iv, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 9662 Pennsylvania Ave, Upper Marlboro, MD 20772
Phone: 301-599-1500    Fax: 301-599-1502
Dr. Jan Zakrzewski, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1221 Mercantile Ln, Upper Marlboro, MD 20774
Phone: 301-618-5647    Fax: 301-618-5504
Dr. Kevin Smith, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 1221 Mercantile Ln, Upper Marlboro, MD 20774
Phone: 301-618-5545    
Dr. Sisom Osia, M.D
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 9628 Marlboro Pike, Upper Marlboro, MD 20772
Phone: 301-599-7010    Fax: 301-599-1222
Dr. Allison Regina Edwards,
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 6409 Crain Hwy, Upper Marlboro, MD 20772
Phone: 301-952-8614    
Dr. Alexis Gorden Mccary, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1221 Mercantile Lane, Upper Marlboro, MD 20774
Phone: 301-618-5500    Fax: 301-618-5978
Dr. John Hyoungsub Shin, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1221 Mercantile Ln, Upper Marlboro, MD 20774
Phone: 301-618-5620    

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.