William Titley Diaz, MD - Medicare Student in an Organized Health Care Education/Training Program in Carolina, PR

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William Titley Diaz, MD is a medicare enrolled "Student In An Organized Health Care Education/training Program" physician in Carolina, Puerto Rico. His current practice location is Hospital Upr Federico Trilla Ave 65 Infanteria, Primer Piso Area Administrativa, Carolina, Puerto Rico. You can reach out to his office (for appointments etc.) via phone at (787) 769-4520.

William Titley Diaz is licensed to practice in Puerto Rico (license number 21541) 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 1841747144.

Contact Information

William Titley Diaz, MD
Hospital Upr Federico Trilla Ave 65 Infanteria, Primer Piso Area Administrativa,
Carolina, PR 00984
(787) 769-4520
Not Available

Map and Direction




Physician's Profile

Full NameWilliam Titley Diaz
GenderMale
SpecialityStudent In An Organized Health Care Education/training Program
LocationHospital Upr Federico Trilla Ave 65 Infanteria, Carolina, Puerto Rico
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1841747144
  • Provider Enumeration Date: 09/02/2016
  • Last Update Date: 06/10/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 5991125130
  • Enrollment ID: I20201009000144

Medical Identifiers

Medical identifiers for William Titley Diaz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1841747144NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208600000XSurgery 14929I (Puerto Rico)Secondary
208D00000XGeneral Practice 21541 (Puerto Rico)Secondary
390200000XStudent In An Organized Health Care Education/training Program 21541 (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. William Titley Diaz 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
William Titley Diaz, MD
Carretera 3 Km 8.3 Ave 65 Infanteria, Hospital Upr Federico Trilla,
Carolina, PR 00984

Ph: (787) 769-4520		William Titley Diaz, MD
Hospital Upr Federico Trilla Ave 65 Infanteria, Primer Piso Area Administrativa,
Carolina, PR 00984

Ph: (787) 769-4520

Reviews and Comments



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.