Charles W Zavala, MD - Medicare Internal Medicine in Brownsville, TX

Charles W Zavala, MD is a medicare enrolled "Internal Medicine - Pulmonary Disease" physician in Brownsville, Texas. He graduated from medical school in 1968 and has 56 years of diverse experience with area of expertise as Internal Medicine. His current practice location is 4401 Morrison Rd, Brownsville, Texas. You can reach out to his office (for appointments etc.) via phone at (956) 541-0162.

Charles W Zavala is licensed to practice in Texas (license number F0099) 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 1598805632.

Contact Information

Charles W Zavala, MD
4401 Morrison Rd,
Brownsville, TX 78526-9607
(956) 541-0162
Not Available

Map and Direction




Physician's Profile

Full NameCharles W Zavala
GenderMale
SpecialityInternal Medicine
Experience56 Years
Location4401 Morrison Rd, Brownsville, 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:
  • Charles W Zavala graduated from medical school in 1968
  NPI Data:
  • NPI Number: 1598805632
  • Provider Enumeration Date: 02/07/2007
  • Last Update Date: 02/03/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 4486838455
  • Enrollment ID: I20110421000796

Medical Identifiers

Medical identifiers for Charles W Zavala such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1598805632NPI-NPPES
098349602MedicaidTX

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RP1001XInternal Medicine - Pulmonary Disease F0099 (Texas)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Valley Regional Medical CenterBrownsville, TXHospital

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. Charles W Zavala allows following entities to bill medicare on his behalf.
Entity NameCharles W.zavala,m.d.,p.a.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952606642
PECOS PAC ID: 8123202199
Enrollment ID: O20110415000437

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. Charles W Zavala 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
Charles W Zavala, MD
4401 Morrison Rd,
Brownsville, TX 78526-9607

Ph: (956) 541-0162
Charles W Zavala, MD
4401 Morrison Rd,
Brownsville, TX 78526-9607

Ph: (956) 541-0162

Reviews and Comments


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Dr. Bricia O Toro De Zarei, MD
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Darlington Udeh, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 110 Uptown Ave Ste B, Brownsville, TX 78520
Phone: 956-525-7817    Fax: 956-525-7800

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.