NPI Portal NPI Lookup & Verification

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

Hiram Ortega Nieves, MD

General Practice Physician in Aguada, PR · enumerated 2005 · practices at Rafael A. Machin Porrata, LLC.

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

National Provider Identifier

1033110275

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Hiram Ortega Nieves
Credential MD
Sex Male
Practice address Aguada, PR, 00602
Phone (787) 868-5455
Fax (787) 868-5455
Enumeration date Aug 10, 2005
Last updated in NPPES Dec 7, 2010

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

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 8159 (PR) Secondary
208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 8159 (PR) Primary
171100000X Acupuncturist Other Service Providers · License 8159 (PR) Secondary
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 Hiram Ortega Nieves?
Hiram Ortega Nieves is registered in NPPES with the primary taxonomy of General Practice 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 2010-12-07.