Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Cristobal Rivera Ramos, M. D.

Internal Medicine Physician in Santa Isabel, PR · enumerated 2011.

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

National Provider Identifier

1235411463

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Registry record

Entity type Individual (Type 1)

Name Cristobal Rivera Ramos

Credential M. D.

Sex Male

Practice address Plz Santa Isabel, #15, Santa Isabel, PR, 00757

Phone (787) 929-5882

Enumeration date Sep 14, 2011

Last updated in NPPES Oct 7, 2015

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 28436-R (PR) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 19,011 (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 NPI 1235411463 active?

Yes, as of the latest NPPES snapshot, NPI 1235411463 is active (record last updated 2015-10-07).

How do I verify Cristobal Rivera Ramos's NPI record?

Cross-check NPI 1235411463 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-10-07.