Maria Elma Rivera, CNM, FNP - Medicare Nurse Practitioner in Crystal City, TX

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Maria Elma Rivera, CNM, FNP is a medicare enrolled "Nurse Practitioner - Family" in Crystal City, Texas. Her current practice location is 308 S Cesar Chavez Ave, Crystal City, Texas. You can reach out to her office (for appointments etc.) via phone at (830) 374-2301.

Maria Elma Rivera is licensed to practice in Texas (license number AP110357) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1558582171.

Contact Information

Maria Elma Rivera, CNM, FNP
308 S Cesar Chavez Ave,
Crystal City, TX 78839-4200
(830) 374-2301
(830) 374-9368

Map and Direction




Provider's Profile

Full NameMaria Elma Rivera
GenderFemale
SpecialityNurse Practitioner - Family
Location308 S Cesar Chavez Ave, Crystal City, Texas
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1558582171
  • Provider Enumeration Date: 05/01/2007
  • Last Update Date: 02/27/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 4789695768
  • Enrollment ID: I20121026000261

Medical Identifiers

Medical identifiers for Maria Elma Rivera such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1558582171NPI-NPPES
080462703MedicaidTX

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
367A00000XAdvanced Practice Midwife AP110357 (Texas)Secondary
363LF0000XNurse Practitioner - Family AP110357 (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. Maria Elma Rivera allows following entities to bill medicare on her behalf.
Entity NameVida Y Salud - Health Systems, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1770511032
PECOS PAC ID: 8820127848
Enrollment ID: O20110307000305
Entity NameDimmit Regional Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1164774253
PECOS PAC ID: 0446385496
Enrollment ID: O20121129000364

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. Maria Elma Rivera 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
Maria Elma Rivera, CNM, FNP
308 S Cesar Chavez Ave,
Crystal City, TX 78839-4200

Ph: (830) 374-2301		Maria Elma Rivera, CNM, FNP
308 S Cesar Chavez Ave,
Crystal City, TX 78839-4200

Ph: (830) 374-2301

Reviews and Comments


Nurse Practitioner Nurses in Crystal City, TX

Mrs. Rosanna Garcia Caballero, FNP
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 308 S Cesar Chavez Ave, Crystal City, TX 78839
Phone: 830-374-2301    
Sarah L. Gibbons, CPNP
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 1313 Veterans Avenue, Suite C, Crystal City, TX 78839
Phone: 830-374-4436    Fax: 830-374-4437
Sara Barker, ANP
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 1313 Veterans Blvd, Suite A, Crystal City, TX 78834
Phone: 830-374-9823    Fax: 830-374-9858
Roger Dehoyos, APRN
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 1313 Veterans Ave Ste A, Crystal City, TX 78839
Phone: 830-374-9823    Fax: 830-374-9858
Debra Lee Gonzalez, FNP-BC
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 210 S Avenue C, Crystal City, TX 78839
Phone: 830-374-2952    
Mrs. Leticia H Ballesteros, FNP
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 308 S Cesar Chavez Ave, Crystal City, TX 78839
Phone: 830-374-2301    Fax: 830-374-9368
Charmaine Mary Mercado, NP
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 308 S Cesar Chavez Ave, Crystal City, TX 78839
Phone: 830-374-2301    Fax: 830-374-9368

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.