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

NPI Profile Information
Primary Taxonomy
Medicare Participation & PECOS Status
NPI Validation
Other Providers Same Location
Frequently Asked Questions

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 .

Location Map

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

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.
1	0	4	3	2	8	2	0	2	3
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2	0	8	3	4	8	4	0	4
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 = 3									3

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.

VICTORIA BUSKA CRNA

Nurse Anesthetist, Certified Registered

MADIGAN ARMY MEDICAL CENTER
TACOMA, WA
ZIP 98431

About GREGORY JOHNSTON

Location Map

Specialty - Primary Taxonomy

General Practice

Medicare Participation & PECOS Enrollment Status

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.

NPI Validation Check Digit Calculation

Other Providers at the Same Location

Frequently Asked Questions

What is Gregory Johnston's NPI number?

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