John Herbert Rees, MD - Medicare Diagnostic Radiology in Baltimore, MD

John Herbert Rees, MD is a medicare enrolled "Radiology - Diagnostic Radiology" physician in Baltimore, Maryland. He went to Georgetown University School Of Medicine and graduated in 1981 and has 45 years of diverse experience with area of expertise as Diagnostic Radiology. He is a member of the group practice Florida Clinical Practice Association Inc, University Of Maryland Diagnostic Imaging Specialists P A, University Of Maryland Diagnostic Imaging Specialists P A, University Imaging Center, Llc, University Of Maryland Diagnostic Radiology, Llc and his current practice location is 22 S Greene St Rm S2a19, Baltimore, Maryland. You can reach out to his office (for appointments etc.) via phone at (410) 328-3477.

John Herbert Rees is licensed to practice in Maryland (license number D0047894) 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 1033199344.

Contact Information

John Herbert Rees, MD
22 S Greene St Rm S2a19,
Baltimore, MD 21201-1544
(410) 328-3477
(410) 328-0641

Map and Direction




Physician's Profile

Full NameJohn Herbert Rees
GenderMale
SpecialityDiagnostic Radiology
Experience45 Years
Location22 S Greene St Rm S2a19, Baltimore, Maryland
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:
  • John Herbert Rees attended and graduated from Georgetown University School Of Medicine in 1981
  NPI Data:
  • NPI Number: 1033199344
  • Provider Enumeration Date: 01/20/2006
  • Last Update Date: 07/23/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 3274517446
  • Enrollment ID: I20110823000992

Medical Identifiers

Medical identifiers for John Herbert Rees such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1033199344NPI-NPPES
965401100MedicaidMD
021574800MedicaidFL
42226TOtherMEDICARE PTAN
104520401MedicaidMI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2085R0202XRadiology - Diagnostic Radiology D0047894 (Maryland)Primary
2085R0202XRadiology - Diagnostic Radiology ME73861 (Florida)Secondary
2085N0700XRadiology - Neuroradiology D0047894 (Maryland)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
University Of Maryland Medical CenterBaltimore, MDHospital
Uf Health Shands HospitalGainesville, FLHospital
University Of Md Medical Center Midtown CampusBaltimore, MDHospital
University Of Md Capital Region Medical CenterUpper marlboro, MDHospital
Umd Shore Medical Ctr At ChestertownChestertown, MDHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Florida Clinical Practice Association Inc03451462541886
University Of Maryland Diagnostic Imaging Specialists P A771987329881
University Of Maryland Diagnostic Imaging Specialists P A771987329881
University Imaging Center, Llc276937868656
University Of Maryland Diagnostic Radiology, Llc034551324847

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. John Herbert Rees allows following entities to bill medicare on his behalf.
Entity NameFlorida Clinical Practice Association Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1063463768
PECOS PAC ID: 0345146254
Enrollment ID: O20031211000099
Entity NameUniversity of Maryland Diagnostic Imaging Specialists P a
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154335487
PECOS PAC ID: 7719873298
Enrollment ID: O20240929000149

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. John Herbert Rees 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
John Herbert Rees, MD
22 S Greene St, Rms2a19,
Baltimore, MD 21201-1544

Ph: (410) 328-3477
John Herbert Rees, MD
22 S Greene St Rm S2a19,
Baltimore, MD 21201-1544

Ph: (410) 328-3477

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.