Dr Thomas Guarnieri, MD - Medicare Cardiovascular Disease (cardiology) in Towson, MD

Dr Thomas Guarnieri, MD is a medicare enrolled "Internal Medicine - Clinical Cardiac Electrophysiology" physician in Towson, Maryland. He went to Johns Hopkins University School Of Medicine and graduated in 1975 and has 49 years of diverse experience with area of expertise as Cardiovascular Disease (cardiology). He is a member of the group practice Johns Hopkins University, Johns Hopkins University and his current practice location is 6569 N Charles St, Suite 600, Towson, Maryland. You can reach out to his office (for appointments etc.) via phone at (410) 602-9262.

Dr Thomas Guarnieri is licensed to practice in Maryland (license number D0018334) 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 1275536591.

Contact Information

Dr Thomas Guarnieri, MD
6569 N Charles St, Suite 600,
Towson, MD 21204-6831
(410) 602-9262
(410) 602-9276

Map and Direction




Physician's Profile

Full NameDr Thomas Guarnieri
GenderMale
SpecialityCardiovascular Disease (cardiology)
Experience49 Years
Location6569 N Charles St, Towson, 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:
  • Dr Thomas Guarnieri attended and graduated from Johns Hopkins University School Of Medicine in 1975
  NPI Data:
  • NPI Number: 1275536591
  • Provider Enumeration Date: 05/31/2005
  • Last Update Date: 08/23/2010
  Medicare PECOS Information:
  • PECOS PAC ID: 4385698570
  • Enrollment ID: I20050318000266

Medical Identifiers

Medical identifiers for Dr Thomas Guarnieri such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1275536591NPI-NPPES
316801800MedicaidMD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease D0018334 (Maryland)Secondary
207RC0001XInternal Medicine - Clinical Cardiac Electrophysiology D0018334 (Maryland)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Greater Baltimore Medical CenterBaltimore, MDHospital
Johns Hopkins Hospital, TheBaltimore, MDHospital
University Of Md St Joseph Medical CenterTowson, MDHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Johns Hopkins University4981745098571
Johns Hopkins University89219031472692

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 Thomas Guarnieri allows following entities to bill medicare on his behalf.
Entity NameJohns Hopkins University
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1922008549
PECOS PAC ID: 8921903147
Enrollment ID: O20031215000719
Entity NameGreater Baltimore Medical Center Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1891855763
PECOS PAC ID: 1759276975
Enrollment ID: O20040217000852
Entity NameJohns Hopkins University
Entity TypePart B Supplier - Hospital Department(s)
Entity IdentifiersNPI Number: 1487118048
PECOS PAC ID: 4981745098
Enrollment ID: O20190228001454

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 Thomas Guarnieri 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 Thomas Guarnieri, MD
1838 Greene Tree Rd, Ste 150ll,
Baltimore, MD 21208-6391

Ph: (410) 602-9262
Dr Thomas Guarnieri, MD
6569 N Charles St, Suite 600,
Towson, MD 21204-6831

Ph: (410) 602-9262

Reviews and Comments


Internal Medicine Doctors in Towson, MD

James Charles Kleeman Jr., MD
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Practice Location: 7505 Osler Dr, Suite 308, Towson, MD 21204
Phone: 410-296-1464    Fax: 410-296-1480
Dr. David S. Berliner, M.D.
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Medicare: Not Enrolled in Medicare
Practice Location: 515 Fairmount Ave, Ste 400, Towson, MD 21286
Phone: 410-494-1397    Fax: 410-584-2247
Dr. Alice S Hsieh, D.O.
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Phone: 410-825-5216    
John Loome, M.D.
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Practice Location: 515 Fairmount Ave, 9th Floor, Towson, MD 21286
Phone: 410-494-7671    
Vikas Kalra, MD
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Phone: 410-427-2580    
Anum Qureshi, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 6565 N Charles St, Towson, MD 21204
Phone: 443-849-3760    Fax: 443-849-8138
Ashraf S Mostafa, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 7505 Osler Drive, Suite 208, Towson, MD 21204
Phone: 410-821-7572    Fax: 410-321-9831

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.