Dr Elfren Martinez, MD - Medicare in Aguas Buenas, PR

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Dr Elfren Martinez, MD is a medicare enrolled "Internal Medicine" physician in Aguas Buenas, Puerto Rico. His current practice location is 94 Calle Munoz Rivera, Aguas Buenas, Puerto Rico. You can reach out to his office (for appointments etc.) via phone at (787) 732-0303.

Dr Elfren Martinez is licensed to practice in Puerto Rico (license number 8300) 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 1245204411.

Contact Information

Dr Elfren Martinez, MD
94 Calle Munoz Rivera,
Aguas Buenas, PR 00703-3100
(787) 732-0303
(787) 732-0303

Map and Direction




Physician's Profile

Full NameDr Elfren Martinez
GenderMale
Speciality
Experience Years
Location94 Calle Munoz Rivera, Aguas Buenas, Puerto Rico
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 Elfren Martinez attended and graduated from in
  NPI Data:
  • NPI Number: 1245204411
  • Provider Enumeration Date: 02/15/2006
  • Last Update Date: 09/07/2025
  Medicare PECOS Information:
  • PECOS PAC ID:
  • Enrollment ID:

Medical Identifiers

Medical identifiers for Dr Elfren Martinez such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1245204411NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 8300 (Puerto Rico)Primary

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 Elfren Martinez 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 Elfren Martinez, MD
Po Box 9419,
Caguas, PR 00726-9419

Ph: (787) 732-0303		Dr Elfren Martinez, MD
94 Calle Munoz Rivera,
Aguas Buenas, PR 00703-3100

Ph: (787) 732-0303

Reviews and Comments


Internal Medicine Doctors in Aguas Buenas, PR

Roberto Karlo Velazquez-correa, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: Street 790 Km-1, Hm-0, Bo. Bayamoncito, Aguas Buenas, PR 00703
Phone: 787-642-1440    
Dr. Ana Carmen Perez Florit, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 57 Calle Yaguez, Estancias Del Rio, Aguas Buenas, PR 00703
Phone: 787-746-4775    

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.