Dr Maria Dolores Diaz, MD - Medicare Ophthalmology in Houston, TX

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Dr Maria Dolores Diaz, MD is a medicare enrolled "Ophthalmology" physician in Houston, Texas. She went to University Of Texas Medical School At Houston and graduated in 1989 and has 35 years of diverse experience with area of expertise as Ophthalmology. She is a member of the group practice Legacy Community Health Services Inc and her current practice location is 5614 E Sam Houston Pkwy N, Houston, Texas. You can reach out to her office (for appointments etc.) via phone at (713) 678-8288.

Dr Maria Dolores Diaz is licensed to practice in Texas (license number H9200) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1326043506.

Contact Information

Dr Maria Dolores Diaz, MD
5614 E Sam Houston Pkwy N,
Houston, TX 77015-3249
(713) 678-8288
Not Available

Map and Direction




Physician's Profile

Full NameDr Maria Dolores Diaz
GenderFemale
SpecialityOphthalmology
Experience35 Years
Location5614 E Sam Houston Pkwy N, Houston, Texas
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Maria Dolores Diaz attended and graduated from University Of Texas Medical School At Houston in 1989
  NPI Data:
  • NPI Number: 1326043506
  • Provider Enumeration Date: 06/15/2005
  • Last Update Date: 04/01/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 7911098629
  • Enrollment ID: I20070926001228

Medical Identifiers

Medical identifiers for Dr Maria Dolores Diaz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1326043506NPI-NPPES
132333907MedicaidTX

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207W00000XOphthalmology H9200 (Texas)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Legacy Community Health Services Inc7911969092138

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 Maria Dolores Diaz allows following entities to bill medicare on her behalf.
Entity NameLegacy Community Health Services Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1679524961
PECOS PAC ID: 7911969092
Enrollment ID: O20110706000516

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 Maria Dolores Diaz 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 Maria Dolores Diaz, MD
2855 Gramercy St Ste 400,
Houston, TX 77025-1697

Ph: (713) 668-6828		Dr Maria Dolores Diaz, MD
5614 E Sam Houston Pkwy N,
Houston, TX 77015-3249

Ph: (713) 678-8288

Reviews and Comments


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Dr. Mitchell M. Porias, D.O.
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Dr. Lauren Sasha Blieden, M.D.
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Yvonne I-fang Chu, M.D.
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Phone: 713-798-6100    Fax: 713-798-4231

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.