NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mariola Alejandra Vazquez-Martinez, M.D.

Hematology & Oncology Physician in San Juan, PR · enumerated 2015.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1063891497

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mariola Alejandra Vazquez-Martinez
Credential M.D.
Sex Female
Practice address San Juan, PR, 00917
Phone (787) 758-2000
Enumeration date May 19, 2015
Last updated in NPPES Jul 11, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD464476 (PA) Secondary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care · License 21228 (PR) Secondary
207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 021228 (PR) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Mariola Vazquez-Martinez?
Mariola Vazquez-Martinez is registered in NPPES with the primary taxonomy of Hematology & Oncology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-11.