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DR. GREGORY MICHAEL JOHNSTON M.D.
NPI 1043282023
General Practice in Tacoma, WA

Active since February 03, 2006PECOS Enrolled
MADIGAN ARMY MEDICAL CENTER, DEPARTMENT OF EMERGENCY MEDICINE, TACOMA, WA 98431(253) 968-1390 Get Directions Write a Review

NPPES record last updated: July 28, 2008. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Gregory Michael Johnston M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GREGORY MICHAEL JOHNSTON M.D. (NPI 1043282023) is an individual general practice provider in Tacoma, Washington, licensed in Virginia (0101235436) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1043282023
Entity TypeIndividualMale
Primary Taxonomy208D00000X
Provider Legal NameDR. GREGORY MICHAEL JOHNSTONCredential: M.D.
Location AddressMADIGAN ARMY MEDICAL CENTER, DEPARTMENT OF EMERGENCY MEDICINETacoma, WA 98431-0001
Mailing Address1412 Kittson StDupont, WA 98327-9719 · (253) 964-2158
Phone(253) 968-1390
Sole ProprietorNo
Enumeration DateFebruary 3, 2006
Last NPPES UpdateJuly 28, 2008
✔ NPI 1043282023 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians
Taxonomy Code208D00000X
License✔ Licensed in VA · 0101235436
Definition
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee
MADIGAN ARMY MEDICAL CENTER, Tacoma, WA 98431
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gregory Michael Johnston M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Gregory Johnston reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Williamsburg Emergency Physicians
2,407 mi
Emergency Care
400 SENTARA CIR
Williamsburg, VA 23188
  • Reassigned Medicare billing, Virginia enrollment
  • 35 clinicians in this Medicare group
NPI 1942585310 (757) 941-6000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MELODIE M ICASIANO MD
Obstetrics & Gynecology
MADIGAN ARMY MEDICAL CENTER, BLDG 9040 FITZSIMMONS DR.
TACOMA, WA 98431
Pierce County (253) 968-1740
BRADLEY EUGENE FOSTER LPN
Licensed Practical Nurse
MADIGAN ARMY MEDICAL CENTER, 9040 JACKSON AVE, ATTN: MCLN-CLQ-C
TACOMA, WA 98431
Pierce County (253) 348-5465
ROBERT BANDA ATC
Specialist/Technologist (Athletic Trainer)
MADIGAN ARMY MEDICAL CENTER, 9040 JACKSON AVE, ATTN: MCHJ-CLQ-C
TACOMA, WA 98431
Pierce County (757) 358-2356
MS. LAURA LOUISE WARD R.PH.
Pharmacist
MADIGAN ARMY MEDICAL CENTER, 9040A FITZSIMMONS AVE
TACOMA, WA 98431
Pierce County (253) 968-1941
MR. JASON EDWARD MYERS L.M.H.C.
Counselor (Mental Health)
MADIGAN ARMY MEDICAL CENTER
TACOMA, WA 98431
Pierce County (253) 968-5140
JASON DOYLE RUNDELL PA-C
Physician Assistant (Medical)
MADIGAN ARMY MEDICAL CENTER, 9040 JACKSON AVENUE
TACOMA, WA 98431
Pierce County (253) 968-1250
DR. STEPHEN MICHAEL YOEST M.D.
Radiology (Neuroradiology)
MADIGAN ARMY MEDICAL CENTER, ATTN: MCHJ-R
TACOMA, WA 98431
Pierce County (253) 968-5604
DR. STANLEY AARON BLOUSTINE M.D.
Plastic Surgery
MADIGAN ARMY MEDICAL CENTER
FT. LEWIS, WA 98431
Pierce County (253) 968-2917

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gregory Johnston's NPI number?

The NPI number for Gregory Johnston is 1043282023. It was assigned to this individual provider in the NPPES registry on February 3, 2006.

Where is Gregory Johnston located?

Gregory Johnston practices at Madigan Army Medical Center Department Of Emergency Medicine, Tacoma, WA 98431. The listed phone number is (253) 968-1390.

What is Gregory Johnston's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

Is Gregory Johnston enrolled in Medicare?

Yes. Gregory Johnston is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Gregory Johnston's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Johnston reassigns Medicare benefits to Williamsburg Emergency Physicians (Williamsburg, VA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gregory Johnston's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Gregory Johnston was last updated on July 28, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.