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

Christopher Alcala-Marquez, M.D.

Orthopaedic Surgery of the Spine Physician in San Juan, PR · enumerated 2008.

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

National Provider Identifier

1669637542

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Registry record

Entity type Individual (Type 1)

Name Christopher Alcala-Marquez

Credential M.D.

Sex Male

Practice address San Juan, PR, 00909

Phone (787) 766-7070

Fax (787) 756-5207

Enumeration date Jul 21, 2008

Last updated in NPPES Sep 18, 2024

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

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 28014R (PR) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 12017-I (PR) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 28916-R (PR) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 28280-R (PR) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 20468 (PR) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 27392R (PR) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 56251 (MN) Secondary

207XS0117X Orthopaedic Surgery of the Spine Physician Allopathic & Osteopathic Physicians · License 56251 (MN) Secondary

207XS0117X Orthopaedic Surgery of the Spine Physician Allopathic & Osteopathic Physicians · License 20468 (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.

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Frequently asked questions

What specialty is Christopher Alcala-Marquez?

Christopher Alcala-Marquez is registered in NPPES with the primary taxonomy of Orthopaedic Surgery of the Spine 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 2024-09-18.