Dr Thomas James Markus, OD - Medicare Optometrist in Houston, TX

Dr Thomas James Markus, OD is a medicare enrolled "Optometrist" provider in Houston, Texas. He went to University Of Houston - College Of Optometry and graduated in 1994 and has 30 years of diverse experience with area of expertise as Optometry. He is a member of the group practice 1960 Eye Surgeons, P.a. and his current practice location is 505 J Davis Armistead Bldg, 4901 Clahoun, Houston, Texas. You can reach out to his office (for appointments etc.) via phone at (713) 743-2020.

Dr Thomas James Markus is licensed to practice in Texas (license number 4998TG) 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 1467419903.

Contact Information

Dr Thomas James Markus, OD
505 J Davis Armistead Bldg, 4901 Clahoun,
Houston, TX 77204-2020
(713) 743-2020
(713) 743-0963

Map and Direction




Healthcare Provider's Profile

Full NameDr Thomas James Markus
GenderMale
SpecialityOptometry
Experience30 Years
Location505 J Davis Armistead Bldg, 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:
  • Dr Thomas James Markus attended and graduated from University Of Houston - College Of Optometry in 1994
  NPI Data:
  • NPI Number: 1467419903
  • Provider Enumeration Date: 04/27/2006
  • Last Update Date: 07/12/2010
  Medicare PECOS Information:
  • PECOS PAC ID: 9032159355
  • Enrollment ID: I20050505001051

Medical Identifiers

Medical identifiers for Dr Thomas James Markus such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1467419903NPI-NPPES
1548224-10MedicaidTX

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
152W00000XOptometrist 4998TG (Texas)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
1960 Eye Surgeons, P.a.07492305146

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 James Markus allows following entities to bill medicare on his behalf.
Provider Name1960 Eye Surgeons, P.a.
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1295817609
PECOS PAC ID: 0749230514
Enrollment ID: O20050128000735

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 James Markus 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 James Markus, OD
505 J Davis Armistead Bldg, 4901 Clahoun,
Houston, TX 77204-2020

Ph: (713) 743-2020
Dr Thomas James Markus, OD
505 J Davis Armistead Bldg, 4901 Clahoun,
Houston, TX 77204-2020

Ph: (713) 743-2020

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.