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

Dr. Carlos N Montalvo Bonilla

Pulmonary Disease Physician in Arecibo, PR · enumerated 2006.

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

National Provider Identifier

1972572782

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Registry record

Entity type Individual (Type 1)

Name Dr. Carlos N Montalvo Bonilla

Sex Male

Practice address Arecibo, PR, 00612

Phone (787) 880-1020

Fax (787) 880-1011

Enumeration date Mar 15, 2006

Last updated in NPPES Dec 20, 2010

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

Taxonomy & licenses

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 6372 (PR) Primary

Other identifiers

Identifier	Type	State	Issuer
1319	Other	PR	PMC

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.

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Frequently asked questions

What specialty is Carlos Montalvo Bonilla?

Carlos Montalvo Bonilla is registered in NPPES with the primary taxonomy of Pulmonary Disease Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-20.