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

NPI Status: Active since February 03, 2006

Contact Information

MADIGAN ARMY MEDICAL CENTER
DEPARTMENT OF EMERGENCY MEDICINE
TACOMA, WA
ZIP 98431
Phone: (253) 968-1390

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  • Individual
  • Male
  • General Practice
  • PECOS Enrolled

About GREGORY JOHNSTON

This page provides the complete NPI Profile along with additional information for Gregory Johnston, a primary care provider established in Tacoma, Washington with a medical specialization in General Practice. The healthcare provider is registered in the NPI registry with number 1043282023 assigned on February 2006. The practitioner's primary taxonomy code is 208D00000X with license number 0101235436 (VA). The provider is registered as an individual and his NPI record was last updated 17 years ago.

NPI
1043282023
Provider Name
DR. GREGORY MICHAEL JOHNSTON M.D.
Gender
Male
Entity Type
Individual
Location Address
MADIGAN ARMY MEDICAL CENTER DEPARTMENT OF EMERGENCY MEDICINE TACOMA, WA 98431
Location Phone
(253) 968-1390
Mailing Address
1412 KITTSON ST DUPONT, WA 98327
Mailing Phone
(253) 964-2158
Is Sole Proprietor?
No
Enumeration Date
02-03-2006
Last Update Date
07-28-2008
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A primary care provider (PCP) like Gregory Johnston sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, etc .

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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

General Practice

Taxonomy Code
208D00000X
Type
Allopathic & Osteopathic Physicians
License No.
0101235436
License State
VA
Taxonomy Description
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

Medicare Participation & PECOS Enrollment Status

Gregory Johnston is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Reviews for DR. GREGORY MICHAEL JOHNSTON M.D.

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1043282023
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
208348404
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 0 + 8 + 3 + 4 + 8 + 4 + 0 + 4 + 24 = 57
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
60 - 57 = 33

The NPI number 1043282023 is valid because the calculated check digit 3 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 20 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1376531384 VICTORIA BUSKA CRNA
Individual
Nurse Anesthetist, Certified RegisteredMADIGAN ARMY MEDICAL CENTER
TACOMA, WA 98431
(253) 968-1479
1942285374DR. CLAUDIA N SWENSON PHARM.D.
Individual
Pharmacist (Pharmacotherapy)MADIGAN ARMY MEDICAL CENTER PHARMACY DEPARTMENT
TACOMA, WA 98431
(253) 968-3823
1568447472DR. WENDY MA
Individual
Obstetrics & GynecologyMADIGAN ARMY MEDICAL CENTER DEPT OF OB/GYN
TACOMA, WA 98431
(253) 968-6023
1093791485DR. STANLEY AARON BLOUSTINE M.D.
Individual
Plastic SurgeryMADIGAN ARMY MEDICAL CENTER
FT. LEWIS, WA 98431
(253) 968-2917
1699753186MS. KATHLEEN ANN KUTSCHER MSW
Individual
Social WorkerMADIGAN ARMY MEDICAL CENTER 9040 REID ST., ATTN: MCHJ-QCR
TACOMA, WA 98431
(253) 968-1552
1508844531MR. RANDOLPH WILSON JOHNSON MSW/DCSW
Individual
Social Worker (Clinical)MADIGAN ARMY MEDICAL CENTER 9040 REID ST., ATTN:MCHJ-QCR
TACOMA, WA 98431
(253) 968-4165
1285614073 ANN P. YEO C.N.M.
Individual
Advanced Practice MidwifeMADIGAN ARMY MEDICAL CENTER 9040 REID ST., ATTN: MCHJ-QCR
TACOMA, WA 98431
(253) 968-2252
1811977267DR. MALCOLM ARTHUR WHITAKER JR. M.D.
Individual
Radiology (Neuroradiology)MADIGAN ARMY MEDICAL CENTER
TACOMA, WA 98431
(253) 968-3636
1679543789DR. WILLIAM BRENT REECE M.D.
Individual
Radiology (Radiation Oncology)MADIGAN ARMY MEDICAL CENTER 9040 REID ST., ATTN: MCHJ-QCR
TACOMA, WA 98431
(253) 968-2252
1295705853MS. ANN GLYNN
Individual
Nurse Anesthetist, Certified RegisteredMADIGAN ARMY MEDICAL CENTER
TACOMA, WA 98431
(253) 968-1975
1427028075MR. MICHAEL ALEXANDER MILLER CRNA
Individual
Nurse Anesthetist, Certified RegisteredMADIGAN ARMY MEDICAL CENTER
TACOMA, WA 98431
(253) 968-2252
1457321960 ROGER KENNETH MANSON M.D.
Individual
Emergency MedicineMADIGAN ARMY MEDICAL CENTER 9040 REID ST., ATTN: MCHJ-QCR
TACOMA, WA 98431
(253) 968-2252
1093785420DR. DONALD R MOFFITT M. D.
Individual
Pediatrics (Pediatric Pulmonology)MADIGAN ARMY MEDICAL CENTER DEPARTMENT OF PEDIATRICS
TACOMA, WA 98431
(253) 968-1980
1629049523 ROBERT BRICE BLANKENSHIP M.D.
Individual
Emergency MedicineMADIGAN ARMY MEDICAL CENTER DEPARTMENT OF EMERGENCY MEDICINE
TACOMA, WA 98431
(253) 968-1250
1093787202DR. STEPHEN MICHAEL YOEST M.D.
Individual
Radiology (Neuroradiology)MADIGAN ARMY MEDICAL CENTER ATTN: MCHJ-R
TACOMA, WA 98431
(253) 968-5604
1275505414DR. LEE ERIC ARTMAN M. D.
Individual
Obstetrics & GynecologyMADIGAN ARMY MEDICAL CENTER 9040 REID ST. ATTN:MCHJ-QCR
TACOMA, WA 98431
(253) 968-2252
1245202548DR. CAROL A MOORES M.D.
Individual
Family MedicineMADIGAN ARMY MEDICAL CENTER ATTN: MCHJ-PV
TACOMA, WA 98431
(253) 968-4479
1447222369DR. CECILY KAREN PETERSON MD
Individual
Internal MedicineMADIGAN ARMY MEDICAL CENTER 9040 REID STREET
TACOMA, WA 98431
(253) 968-0208
1295707024 LADD ALEX TREMAINE M.D.
Individual
Pathology (Anatomic Pathology & Clinical Pathology)MADIGAN ARMY MEDICAL CENTER FITZSIMMONS DRIVE
TACOMA, WA 98431
(253) 968-1731
1104898683 SANDRA HARRISON-WEAVER MHE, OTR/L, CHT
Individual
SpecialistMADIGAN ARMY MEDICAL CENTER 9040A FITZSIMMONS DRIVE MCHJ-PMO
TACOMA, WA 98431
(253) 968-2330

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1043282023, enumerated in the NPI registry as an "individual" on February 03, 2006

The provider is located at Madigan Army Medical Center Department Of Emergency Medicine Tacoma, Wa 98431 and the phone number is (253) 968-1390

The provider's speciality is General Practice with taxonomy code 208D00000X

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

This NPI record was last updated on February 03, 2006. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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