NPI Portal NPI Lookup & Verification

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

Alex Lim, MD MPH

Internal Medicine Physician in Anaheim, CA · enumerated 2021 · practices at Chest and Critical Care Consultants A Medical Group.

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

National Provider Identifier

1508430968

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Alex Lim
Credential MD MPH
Sex Male
Practice address Anaheim, CA, 92801
Phone (520) 694-8888
Fax (520) 694-1640
Enumeration date May 19, 2021
Last updated in NPPES Nov 5, 2025

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

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 201333 (CA) Primary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License R78625 (AZ) Secondary

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 specialty is Alex Lim?
Alex Lim is registered in NPPES with the primary taxonomy of Internal Medicine 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.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-05.