Ali Mastali, MD - Medicare Emergency Medicine in San Juan, PR

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Ali Mastali, MD is a medicare enrolled "General Practice" physician in San Juan, Puerto Rico. He graduated from medical school in 2011 and has 15 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Kayenta Alternative Rural Hospital and his current practice location is 313 C Columbia, University Garden, San Juan, Puerto Rico. You can reach out to his office (for appointments etc.) via phone at (424) 757-3037.

Ali Mastali is licensed to practice in Puerto Rico (license number 18753) 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 1821401258.

Contact Information

Ali Mastali, MD
313 C Columbia, University Garden,
San Juan, PR 00983
(424) 757-3037
Not Available

Map and Direction




Physician's Profile

Full NameAli Mastali
GenderMale
SpecialityEmergency Medicine
Experience15 Years
Location313 C Columbia, San Juan, 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:
  • Ali Mastali graduated from medical school in 2011
  NPI Data:
  • NPI Number: 1821401258
  • Provider Enumeration Date: 06/03/2014
  • Last Update Date: 06/03/2014
  Medicare PECOS Information:
  • PECOS PAC ID: 2567688179
  • Enrollment ID: I20141119001894

Medical Identifiers

Medical identifiers for Ali Mastali such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1821401258NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208D00000XGeneral Practice 18753 (Puerto Rico)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Kayenta Alternative Rural Hospital367855812945

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. Ali Mastali allows following entities to bill medicare on his behalf.
Entity NameUs Health Dept Of Health & Human Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1972694602
PECOS PAC ID: 9638081623
Enrollment ID: O20031106000399
Entity NamePhs Indian Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1508809765
PECOS PAC ID: 4789598731
Enrollment ID: O20031114000287
Entity NameKayenta Alternative Rural Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1174692529
PECOS PAC ID: 3678558129
Enrollment ID: O20040621000422
Entity NameTon Sells Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1487652426
PECOS PAC ID: 5092768663
Enrollment ID: O20050301000125

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. Ali Mastali 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
Ali Mastali, MD
313 C Columbia, University Garden,
San Juan, PR 00983

Ph: (424) 757-3037		Ali Mastali, MD
313 C Columbia, University Garden,
San Juan, PR 00983

Ph: (424) 757-3037

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).

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