SAMANTHA CHAPMAN OD, MS
NPI 1265309710
Optometrist in Fpo, AP

NPI Status: Active since October 20, 2025

Contact Information

PSC 455 BOX 208
FPO, AP
ZIP 96540
Phone: (671) 344-9340

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  • Individual
  • Optometrist

About SAMANTHA CHAPMAN

This page provides the complete NPI Profile along with additional information for Samantha Chapman, a provider established in Fpo, operating as a Optometrist. The healthcare provider is registered in the NPI registry with number 1265309710 assigned on October 2025. The practitioner's primary taxonomy code is 152W00000X with license number 0620000057 (VA). The provider is registered as an individual and their NPI record was last updated one year ago.

NPI
1265309710
Provider Name
SAMANTHA CHAPMAN OD, MS
Gender
Entity Type
Individual
Location Address
PSC 455 BOX 208 FPO, AP 96540
Location Phone
(671) 344-9340
Mailing Address
U.S. NAVAL HOSPITAL GUAM FARENHOLT AVE. BLDG 50 AGANA HEIGHTS, GU 96910
Is Sole Proprietor?
No
Enumeration Date
10-20-2025
Last Update Date
10-20-2025
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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

Optometrist

Taxonomy Code
152W00000X
Type
Eye and Vision Services Providers
License No.
0620000057
License State
VA
Taxonomy Description
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

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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 1265309710, we treat the final digit (0) 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).

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
2
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
5
Unchanged
Pos 5
3
Doubled → 6
Pos 6
0
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
7
Unchanged
Pos 9
1
Doubled → 2
Check
0
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 6 → 12 → 3 3 → 6 9 → 18 → 9 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 2 + 5 + 6 + 0 + 1 + 8 + 7 + 2 + 24 = 60

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

The next multiple of ten after 60 is 60. The difference is the calculated check digit.

60 - 60 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1265309710.

Other Providers at the Same Location


The following 6 providers are registered at the same or a nearby location.

Dental Assistant
PSC 455 BOX 208
FPO, AP 96540
Registered Nurse (Case Management)
PSC 455 BOX 208
FPO, AP 96540
Registered Nurse (Case Management)
PSC 455 BOX 208
FPO, AP 96540
Physician Assistant
PSC 455 BOX 208
FPO, AP 96540
Nurse Practitioner (Family)
PSC 455 BOX 208
FPO, AP 96540
Dental Hygienist
PSC 455 BOX 208
FPO, AP 96540

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1265309710, enumerated as an "individual" on October 20, 2025.

The provider is located at PSC 455 BOX 208 FPO, AP 96540 and the phone number is (671) 344-9340.

Optometrist with taxonomy code 152W00000X.