Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Ryan Allen, MD, MSCR

Q: What is the NPI number for John Allen?

The National Provider Identifier (NPI) for John Allen is 1881437960, a Type 1 (individual) record in the CMS NPPES registry.

Orthopaedic Surgery Physician in Charleston, SC · enumerated 2024.

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

National Provider Identifier

1881437960

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name John Ryan Allen

Credential MD, MSCR

Sex Male

Practice address 169 Ashley Ave Rm 202, Charleston, SC, 29425

Phone (843) 792-2575

Enumeration date Jun 17, 2024

Last updated in NPPES Jun 17, 2024

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License LL92225 (SC) 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

What is the NPI number for John Allen?

The National Provider Identifier (NPI) for John Allen is 1881437960, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Allen practice?

The practice location on file with NPPES is in Charleston, SC. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-17.