Guillermo Marquez Macias Sr, - Medicare Nurse Practitioner in Pasadena, TX

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Guillermo Marquez Macias Sr, is a medicare enrolled "Nurse Practitioner - Family" in Pasadena, Texas. His current practice location is 908 Southmore Ave Ste 100, Pasadena, Texas. You can reach out to his office (for appointments etc.) via phone at (713) 554-1091.

Guillermo Marquez Macias Sr is licensed to practice in Texas (license number AP144288) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1013547231.

Contact Information

Guillermo Marquez Macias Sr,
908 Southmore Ave Ste 100,
Pasadena, TX 77502-1120
(713) 554-1091
Not Available

Map and Direction




Provider's Profile

Full NameGuillermo Marquez Macias Sr
GenderMale
SpecialityNurse Practitioner - Family
Location908 Southmore Ave Ste 100, Pasadena, Texas
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1013547231
  • Provider Enumeration Date: 01/16/2020
  • Last Update Date: 07/14/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 8820138217
  • Enrollment ID: I20200409002211

Medical Identifiers

Medical identifiers for Guillermo Marquez Macias Sr such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1013547231NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363LF0000XNurse Practitioner - Family AP144288 (Texas)Primary

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. Guillermo Marquez Macias Sr allows following entities to bill medicare on his behalf.
Entity NameDoctors Express Of The Beaumont Area Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1841525235
PECOS PAC ID: 5698816882
Enrollment ID: O20100114000255

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. Guillermo Marquez Macias Sr 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
Guillermo Marquez Macias Sr,
4700 W Sam Houston Pkwy N, Ste 200,
Houston, TX 77041-8224

Ph: (713) 402-7824		Guillermo Marquez Macias Sr,
908 Southmore Ave Ste 100,
Pasadena, TX 77502-1120

Ph: (713) 554-1091

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.