NPI Portal NPI Lookup & Verification

Joseph Harcourt Acton, MD

Joseph Harcourt Acton is a Internal Medicine Physician provider (Internal Medicine) practicing in Gresham, OR, registered in the NPPES registry with NPI 1861452765 since 2006. The credential MD stands for Doctor of Medicine.

✓ Active NPI ✓ Valid NPI checksum

NPI 1861452765
Entity type Individual (Type 1)
Name Joseph Harcourt Acton
Credential MD
Sex Male
Practice address 24800 SE STARK ST, Gresham, OR, 97030
Phone 5034138407
Fax 5034136951
Enumeration date 2006-03-24
Last updated in NPPES 2020-12-22

Taxonomy & licenses

Taxonomy code Specialty Primary License State
207R00000X Internal Medicine Physician Secondary 31445 AZ
207R00000X Internal Medicine Physician Secondary 31447 AZ
207R00000X Internal Medicine Physician Secondary MD2010-0738 NM
207R00000X Internal Medicine Physician Primary MD153836 OR

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
82677901 Medicaid AZ
AZ0743000 Other AZ BC/BS OF AZ
P00089884 Other AZ RR MEDICARE
71878 Other IA BCBS
Copy-ready billing details
Provider: Joseph Acton, MD
NPI: 1861452765
Taxonomy: 207R00000X (Internal Medicine Physician)
Address: 24800 SE STARK ST, Gresham, OR, 97030

Other providers at this practice address

NPI Name Type Specialty Location
1033183918 Amy Chaumeton Individual Internal Medicine Physician Gresham, OR
1659346252 Mark Harrington Individual Hospitalist Physician Gresham, OR
1275508418 Anthony Ladogana Individual Internal Medicine Physician Gresham, OR
1023071016 Kelly Leaf Individual Emergency Medicine Physician Gresham, OR
1861430738 Philip Chadwick Individual Emergency Medicine Physician Gresham, OR
1255369559 Deborah Alexander Individual Internal Medicine Physician Gresham, OR
1255360350 Laura Vanderwerff Individual Critical Care Medicine (Internal Medicine) Physician Gresham, OR
1073539359 Daniel Berger Individual Emergency Medicine Physician Gresham, OR

Verify this record

Cross-check NPI 1861452765 against the authoritative CMS record: view Joseph Harcourt Acton on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Where does Joseph Acton practice?
The practice location on file with NPPES is in Gresham, OR. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Joseph Acton?
The National Provider Identifier (NPI) for Joseph Acton is 1861452765, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-12-22.