Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Julia W Mason, MD
Pediatrics Physician in Gresham, OR · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1164426110
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Registry record
Entity type Individual (Type 1)
Name Dr. Julia W Mason
Credential MD
Sex Female
Practice address 24850 Se Stark St, Suite 150, Gresham, OR, 97030
Phone (503) 491-0714
Fax (503) 674-2834
Enumeration date Jun 8, 2005
Last updated in NPPES Mar 8, 2016
Taxonomy & licenses
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 |
|---|---|---|---|
| 500660445 | Medicaid | OR | - |
| 34053400 | Medicaid | WI | - |
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.
Frequently asked questions
What specialty is Julia Mason?
Julia Mason is registered in NPPES with the primary taxonomy of Pediatrics 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 → Russell Lieblick Oral and Maxillofacial Surgery (Dentist) · Gresham, OR NPI 1407856156 Henry Windell Oral and Maxillofacial Pathology Dentistry · Gresham, OR NPI 1063413722 Frank Calcagno Pediatrics Physician · Gresham, OR NPI 1356331847 John Calcagno Pediatrics Physician · Gresham, OR NPI 1245220771 Calcagno Pediatrics PC Pediatrics Physician · Gresham, OR NPI 1255322194 Kelly Carter Obstetrics & Gynecology Physician · Gresham, OR NPI 1427066554 Michelle Champagne Obstetrics & Gynecology Physician · Gresham, OR NPI 1982612024 Sandra Collis Obstetrics & Gynecology Physician · Gresham, OR NPI 1841208972
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-03-08.