DR. BARTH E MERRILL M.D
NPI 1902882384
Preventive Medicine - Aerospace Medicine in Bremerton, WA

NPI Status: Active since December 19, 2005

Contact Information

1 BOONE RD
BREMERTON, WA
ZIP 98312
Phone: (360) 475-4978

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  • Individual
  • Male
  • Preventive Medicine
  • Aerospace Medicine

About BARTH MERRILL

This page provides the complete NPI Profile along with additional information for Barth Merrill, a provider established in Bremerton, Washington with a medical specialization in Preventive Medicine, focusing in aerospace medicine . The healthcare provider is registered in the NPI registry with number 1902882384 assigned on December 2005. The practitioner's primary taxonomy code is 2083A0100X with license number 33898-020 (WI). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1902882384
Provider Name
DR. BARTH E MERRILL M.D
Gender
Male
Entity Type
Individual
Location Address
1 BOONE RD BREMERTON, WA 98312
Location Phone
(360) 475-4978
Mailing Address
3480 SEABECK HWY NW BREMERTON, WA 98312
Mailing Phone
(360) 377-6124
Mailing Fax
Is Sole Proprietor?
No
Enumeration Date
12-19-2005
Last Update Date
09-11-2025
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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

Preventive Medicine Aerospace Medicine

Taxonomy Code
2083A0100X
Type
Allopathic & Osteopathic Physicians
License No.
33898-020
License State
WI
Taxonomy Description
Aerospace medicine focuses on the clinical care, research, and operational support of the health, safety, and performance of crewmembers and passengers of air and space vehicles, together with the support personnel who assist operation of such vehicles. This population often works and lives in remote, isolated, extreme, or enclosed environments under conditions of physical and psychological stress. Practitioners strive for an optimal human-machine match in occupational settings rich with environmental hazards and engineering countermeasures.

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)
1207Q00000XAllopathic & Osteopathic Physicians

Family Medicine

33898-020 (WI)

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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 1902882384, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

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
9
Unchanged
Pos 3
0
Doubled → 0
Pos 4
2
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
8
Unchanged
Pos 7
2
Doubled → 4
Pos 8
3
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
4
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 0 → 0 8 → 16 → 7 2 → 4 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 0 + 2 + 1 + 6 + 8 + 4 + 3 + 1 + 6 + 24 = 66

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

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1902882384.

Other Providers at the Same Location


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

Otolaryngology
1 BOONE RD, NAVAL HOSPITAL
BREMERTON, WA 98312
Pediatrics
1 BOONE RD
BREMERTON, WA 98312
Emergency Medicine
1 BOONE RD
BREMERTON, WA 98312
Preventive Medicine (Preventive Medicine/Occupational Environmental Medicine)
1 BOONE RD
BREMERTON, WA 98312
Optometrist
1 BOONE RD, NAVAL HOSPITAL BREMERTON
BREMERTON, WA 98312
Audiologist
1 BOONE RD
BREMERTON, WA 98312
Family Medicine
1 BOONE RD
BREMERTON, WA 98312
Nurse Practitioner (Family)
1 BOONE RD, NAVAL HOSPITAL BREMERTON
BREMERTON, WA 98312
Audiologist
1 BOONE RD
BREMERTON, WA 98312
Military Hospital
1 BOONE RD
BREMERTON, WA 98312
Nurse Practitioner (Pediatrics)
1 BOONE RD
BREMERTON, WA 98312
Family Medicine
1 BOONE RD, NAVAL HOSPITAL CODE 035
BREMERTON, WA 98312
Advanced Practice Midwife
1 BOONE RD
BREMERTON, WA 98312
Otolaryngology
1 BOONE RD
BREMERTON, WA 98312
Dentist (General Practice)
1 BOONE RD
BREMERTON, WA 98312
Pharmacist
1 BOONE RD
BREMERTON, WA 98312
Dentist
1 BOONE RD
BREMERTON, WA 98312
Pediatrics
1 BOONE RD
BREMERTON, WA 98312
Preventive Medicine (Undersea and Hyperbaric Medicine)
1 BOONE RD
BREMERTON, WA 98312
Student in an Organized Health Care Education/Training Program
1 BOONE RD
BREMERTON, WA 98312

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1902882384, enumerated as an "individual" on December 19, 2005.

The provider is located at 1 BOONE RD BREMERTON, WA 98312 and the phone number is (360) 475-4978.

Preventive Medicine with taxonomy code 2083A0100X and a focus in Aerospace Medicine.