Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Thelma Marie Maronge-Gregg, P.T.
Physical Therapist in Seattle, WA · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1275813487
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Registry record
Entity type Individual (Type 1)
Name Thelma Marie Maronge-Gregg
Credential P.T.
Sex Female
Practice address 836 Ne Northgate Way, Seattle, WA, 98125
Phone (206) 784-0737
Enumeration date Aug 18, 2011
Last updated in NPPES Apr 20, 2015
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT60199256 (WA) Primary
PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation.
About the PT credential
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 1275813487 active?
Yes, as of the latest NPPES snapshot, NPI 1275813487 is active (record last updated 2015-04-20).
How do I verify Thelma Maronge-Gregg's NPI record?
Cross-check NPI 1275813487 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 → Eduardo Miller Family Medicine Physician · Seattle, WA NPI 1659355097 Amber Isenberg Massage Therapist · Seattle, WA NPI 1093017469 U.S. Healthworks Medical Group of Washington, Ps Urgent Care Clinic/Center · Seattle, WA NPI 1366991531 Occupational Health Centers of Washington, P.S. Occupational Medicine Clinic/Center · Seattle, WA NPI 1295218006 American Current Care of Washington, P.S. Urgent Care Clinic/Center · Seattle, WA NPI 1619450418 Balaji Sridhar Occupational Medicine Physician · Seattle, WA NPI 1255890216
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-04-20.