NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Aaron Jacob Watson, MD

Psychiatry Physician in Los Angeles, CA · enumerated 2020.

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

National Provider Identifier

1386273027

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Aaron Jacob Watson
Credential MD
Sex Male
Practice address 2116 Arlington Ave, Los Angeles, CA, 90018
Phone (323) 334-9000
Enumeration date Apr 4, 2020
Last updated in NPPES Oct 25, 2024

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License A178832 (CA) Primary
174400000X Specialist Other Service Providers · License PTL4543 (CA) Secondary
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

Where does Aaron Watson practice?
The practice location on file with NPPES is in Los Angeles, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Aaron Watson?
The National Provider Identifier (NPI) for Aaron Watson is 1386273027, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-25.