NPI Portal NPI Lookup & Verification

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

Theresa Pak, DO

Orthopaedic Surgery Physician in Sun City, AZ · enumerated 2017 · practices at Center for Orthopedic Research and Education LLC.

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

National Provider Identifier

1922536630

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Theresa Pak
Credential DO
Sex Female
Practice address Sun City, AZ, 85351
Phone (866) 974-2673
Fax (866) 939-2673
Enumeration date May 24, 2017
Last updated in NPPES Aug 8, 2025

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 DO209585 (OR) Secondary
207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 10531 (AZ) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
138301 Medicaid AZ -

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 Theresa Pak?
The National Provider Identifier (NPI) for Theresa Pak is 1922536630, a Type 1 (individual) record in the CMS NPPES registry.
Where does Theresa Pak practice?
The practice location on file with NPPES is in Sun City, AZ. 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 2025-08-08.