Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Thomas J Grabowski Jr., MD
Neurology Physician in Seattle, WA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1033104252
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Registry record
Entity type Individual (Type 1)
Name Thomas J Grabowski Jr.
Credential MD
Sex Male
Practice address 1959 Ne Pacific St, Seattle, WA, 98195
Phone (206) 598-7688
Enumeration date Sep 14, 2005
Last updated in NPPES Nov 8, 2017
Taxonomy & licenses
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License MD60064125 (WA) Primary
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 |
|---|---|---|---|
| 1033104252 | Medicaid | WA | - |
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 is the NPI number for Thomas Grabowski?
The National Provider Identifier (NPI) for Thomas Grabowski is 1033104252, a Type 1 (individual) record in the CMS NPPES registry.
Where does Thomas Grabowski practice?
The practice location on file with NPPES is in Seattle, WA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Stephen Eigles Diagnostic Radiology Physician · Seattle, WA NPI 1619970787 David Bolus Diagnostic Radiology Physician · Seattle, WA NPI 1104823491 Sammy Chu Diagnostic Radiology Physician · Seattle, WA NPI 1972502656 Annie Fang Internal Medicine Physician · Seattle, WA NPI 1679572168 John Kern Psychiatry Physician · Seattle, WA NPI 1083615454 Barbara Bjeletich Critical Care Medicine Nurse Practitioner · Seattle, WA NPI 1669465027 Peter Nelson Nephrology Physician · Seattle, WA NPI 1164417119 Mark Cain Pediatric Urology Physician · Seattle, WA NPI 1912993320
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-11-08.