Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Devon Sittlow Callahan, M.D

Surgery Physician in Los Angeles, CA · enumerated 2012.

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

National Provider Identifier

1528315181

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Devon Sittlow Callahan

Credential M.D

Sex Male

Practice address 8635 W 3rd St Ste 770w, Los Angeles, CA, 90048

Phone (310) 423-8350

Fax (310) 423-8351

Enumeration date Aug 13, 2012

Last updated in NPPES Oct 31, 2024

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 61007 (MN) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License A128652 (CA) 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 1528315181 active?

Yes, as of the latest NPPES snapshot, NPI 1528315181 is active (record last updated 2024-10-31).

How do I verify Devon Callahan's NPI record?

Cross-check NPI 1528315181 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-31.