John Joseph Mahmarian, MD - Medicare Cardiovascular Disease (cardiology) in Houston, TX

John Joseph Mahmarian, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Houston, Texas. He went to New York Medical College and graduated in 1980 and has 44 years of diverse experience with area of expertise as Cardiovascular Disease (cardiology). He is a member of the group practice Tmh Physician Associates Pllc and his current practice location is 6550 Fannin St, Smith Tower, Suite 1901, Houston, Texas. You can reach out to his office (for appointments etc.) via phone at (713) 441-1100.

John Joseph Mahmarian is licensed to practice in Texas (license number F9767) 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 1114957511.

Contact Information

John Joseph Mahmarian, MD
6550 Fannin St, Smith Tower, Suite 1901,
Houston, TX 77030-2717
(713) 441-1100
(713) 790-2643

Map and Direction




Physician's Profile

Full NameJohn Joseph Mahmarian
GenderMale
SpecialityCardiovascular Disease (cardiology)
Experience44 Years
Location6550 Fannin St, Houston, Texas
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 Joseph Mahmarian attended and graduated from New York Medical College in 1980
  NPI Data:
  • NPI Number: 1114957511
  • Provider Enumeration Date: 07/03/2006
  • Last Update Date: 03/07/2014
  Medicare PECOS Information:
  • PECOS PAC ID: 2668490459
  • Enrollment ID: I20051110000207

Medical Identifiers

Medical identifiers for John Joseph Mahmarian such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1114957511NPI-NPPES
770000927OtherTXMEDICARE 3
00T79SOtherTXMEDICARE1
134999510MedicaidTX
134999511MedicaidTX
P00295327OtherTXRAILROAD MEDICARE
P01036901OtherTXRR MEDICARE
612341OtherTXMEDICARE 2
134999509MedicaidTX
1375250MedicaidLA
8U8373OtherTXBLUE CROSS BLUE SHIELD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease F9767 (Texas)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Houston Methodist HospitalHouston, TXHospital
Houston Methodist West HospitalHouston, TXHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Tmh Physician Associates Pllc44867117441583

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 Joseph Mahmarian allows following entities to bill medicare on his behalf.
Entity NameTmh Physician Associates Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1275779225
PECOS PAC ID: 4486711744
Enrollment ID: O20090401000100

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 Joseph Mahmarian 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 Joseph Mahmarian, MD
6550 Fannin St, Smith Tower, Suite 1901,
Houston, TX 77030-2717

Ph: (713) 441-1100
John Joseph Mahmarian, MD
6550 Fannin St, Smith Tower, Suite 1901,
Houston, TX 77030-2717

Ph: (713) 441-1100

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).

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