MR. GREGORY DAVID THOMAS R.PH., M.P.H.
NPI 1578861852
Pharmacist - Pharmacotherapy in Seattle, WA

NPI Status: Active since March 10, 2011

Contact Information

401 5TH AVE
KING COUNTY CNK-ES-0230
SEATTLE, WA
ZIP 98104
Phone: (206) 296-4637

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  • Individual
  • Male
  • Pharmacist
  • Pharmacotherapy

About GREGORY THOMAS

This page provides the complete NPI Profile along with additional information for Gregory Thomas, a provider established in Seattle, Washington with a medical specialization in Pharmacist, focusing in pharmacotherapy . The healthcare provider is registered in the NPI registry with number 1578861852 assigned on March 2011. The practitioner's primary taxonomy code is 1835P1200X with license number 17340 (MA). The provider is registered as an individual and his NPI record was last updated 15 years ago.

NPI
1578861852
Provider Name
MR. GREGORY DAVID THOMAS R.PH., M.P.H.
Gender
Male
Entity Type
Individual
Location Address
401 5TH AVE KING COUNTY CNK-ES-0230 SEATTLE, WA 98104
Location Phone
(206) 296-4637
Mailing Address
3069 71ST AVE SE MERCER ISLAND, WA 98040
Mailing Phone
(206) 230-6418
Is Sole Proprietor?
Yes
Enumeration Date
03-10-2011
Last Update Date
03-10-2011
Code Navigator

A pharmacist like Gregory Thomas fills prescription medications, verifying instructions from physicians and offers expertise in the safe use of prescriptions. Pharmacists instruct patients on how to take a prescribed medicine and educate patients about potential side effects. Pharmacists might also conduct health and wellness screenings, provide immunizations, oversee the medications given to patients, and provide advice on healthy lifestyles.

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

Pharmacist Pharmacotherapy

Taxonomy Code
1835P1200X
Type
Pharmacy Service Providers
License No.
17340
License State
MA
Taxonomy Description
A licensed pharmacist who has demonstrated specialized knowledge and skill in optimizing pharmacotherapeutic care of patients, by developing, implementing, monitoring, and modifying complex treatment plans, providing advanced level education and consultation, and collaborating with other health professionals in the management of therapy.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
11835P1200XPharmacy Service Providers

Pharmacist
Pharmacotherapy

16837 (WA)
21835P1200XPharmacy Service Providers

Pharmacist
Pharmacotherapy

20514 (FL)

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1578861852, we treat the final digit (2) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
5
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
8
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
6
Unchanged
Pos 7
1
Doubled → 2
Pos 8
8
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
2
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 7 → 14 → 5 8 → 16 → 7 1 → 2 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 5 + 1 + 4 + 8 + 1 + 6 + 6 + 2 + 8 + 1 + 0 + 24 = 68

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1578861852.

Other Providers at the Same Location


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

Psychiatry & Neurology (Psychiatry)
401 5TH AVE, SUITE 0400
SEATTLE, WA 98104
Nurse Practitioner (Adult Health)
401 5TH AVE, SUITE 1600
SEATTLE, WA 98104
Nutritionist
401 5TH AVE
SEATTLE, WA 98104
Counselor (Mental Health)
401 5TH AVE
SEATTLE, WA 98104
Social Worker (Clinical)
401 5TH AVE, SUITE 1000
SEATTLE, WA 98104
Clinic/Center (Multi-Specialty)
401 5TH AVE, SUITE 1200
SEATTLE, WA 98104
Registered Nurse
401 5TH AVE, SUITE 1000
SEATTLE, WA 98104
Registered Nurse
401 5TH AVE, SUITE 1000
SEATTLE, WA 98104
Registered Nurse
401 5TH AVE, 1000
SEATTLE, WA 98104
Registered Nurse
401 5TH AVE
SEATTLE, WA 98104
Registered Nurse
401 5TH AVE, SUITE 1000
SEATTLE, WA 98104
Registered Nurse
401 5TH AVE, SUITE 1000
SEATTLE, WA 98104
Registered Nurse (Maternal Newborn)
401 5TH AVE
SEATTLE, WA 98104
Dietitian, Registered
401 5TH AVE
SEATTLE, WA 98104
Counselor (Mental Health)
401 5TH AVE
SEATTLE, WA 98104
Counselor
401 5TH AVE
SEATTLE, WA 98104
Counselor
401 5TH AVE
SEATTLE, WA 98104
Counselor (Mental Health)
401 5TH AVE
SEATTLE, WA 98104
Marriage & Family Therapist
401 5TH AVE
SEATTLE, WA 98104
Counselor (Mental Health)
401 5TH AVE
SEATTLE, WA 98104

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1578861852, enumerated as an "individual" on March 10, 2011.

The provider is located at 401 5TH AVE KING COUNTY CNK-ES-0230 SEATTLE, WA 98104 and the phone number is (206) 296-4637.

Pharmacist with taxonomy code 1835P1200X and a focus in Pharmacotherapy.