Mr Mark Riley Jonker, MD - Medicare Internal Medicine in Hartford, CT

Mr Mark Riley Jonker, MD is a medicare enrolled "Internal Medicine" physician in Hartford, Connecticut. He graduated from medical school in 2016 and has 8 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Middlesex Hospital and his current practice location is 79 Retreat Avenue, Hartford Hospital, Adult Primary Care- Brown Stone, Hartford, Connecticut. You can reach out to his office (for appointments etc.) via phone at (860) 972-0200.

Mr Mark Riley Jonker is licensed to practice in Connecticut (license number 64205) 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 1780030452.

Contact Information

Mr Mark Riley Jonker, MD
79 Retreat Avenue, Hartford Hospital, Adult Primary Care- Brown Stone,
Hartford, CT 06106
(860) 972-0200
(860) 545-3149

Map and Direction




Physician's Profile

Full NameMr Mark Riley Jonker
GenderMale
SpecialityInternal Medicine
Experience8 Years
Location79 Retreat Avenue, Hartford, Connecticut
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:
  • Mr Mark Riley Jonker graduated from medical school in 2016
  NPI Data:
  • NPI Number: 1780030452
  • Provider Enumeration Date: 05/11/2016
  • Last Update Date: 06/03/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 5395030589
  • Enrollment ID: I20200611001504

Medical Identifiers

Medical identifiers for Mr Mark Riley Jonker such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1780030452NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 64205 (Connecticut)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Middlesex HospitalMiddletown, CTHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Middlesex Hospital5092611731204

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. Mr Mark Riley Jonker allows following entities to bill medicare on his behalf.
Entity NameMiddlesex Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1972563138
PECOS PAC ID: 5092611731
Enrollment ID: O20031216000592

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. Mr Mark Riley Jonker 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
Mr Mark Riley Jonker, MD
263 Farmington Avenue, Dept Of Medicine, Room L2104,
Farmington, CT 06030-1235

Ph: (860) 679-2437
Mr Mark Riley Jonker, MD
79 Retreat Avenue, Hartford Hospital, Adult Primary Care- Brown Stone,
Hartford, CT 06106

Ph: (860) 972-0200

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.

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.