Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Thomas Patrick Welch, MD
Psychiatry Physician in Aloha, OR · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1083626121
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Registry record
Entity type Individual (Type 1)
Name Thomas Patrick Welch
Credential MD
Sex Male
Practice address 4585 Sw 185th Ave, Aloha, OR, 97078
Phone (503) 591-9280
Fax (503) 848-2072
Enumeration date Aug 13, 2006
Last updated in NPPES Nov 19, 2019
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 |
|---|---|---|---|
| F07035 | Medicaid | OR | - |
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
Is NPI 1083626121 active?
Yes, as of the latest NPPES snapshot, NPI 1083626121 is active (record last updated 2019-11-19).
How do I verify Thomas Welch's NPI record?
Cross-check NPI 1083626121 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Nauphyll Zuberi Psychiatry Physician · Aloha, OR NPI 1770656852 Jessica Ricker Professional Counselor · Aloha, OR NPI 1982933578 John Wheeler Mental Health Counselor · Aloha, OR NPI 1437457447 Amanda Miller Case Manager/Care Coordinator · Aloha, OR NPI 1447549811 Arin Wallington Mental Health Counselor · Aloha, OR NPI 1053605667 Jakson Edward Registered Nurse · Aloha, OR NPI 1861738486 Ingrid Evjen-Elias Mental Health Counselor · Aloha, OR NPI 1134559933 Rachel Major Case Manager/Care Coordinator · Aloha, OR NPI 1316362692
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-11-19.