GEOFFREY ASHMUN MA
NPI 1639716020
Counselor - Mental Health in Federal Way, WA

NPI Status: Active since December 04, 2019

Contact Information

1600B SW DASH POINT RD # 2480
FEDERAL WAY, WA
ZIP 98023
Phone: (831) 461-4346

Get Directions Write a Review

  • Individual
  • Male
  • Counselor
  • Mental Health

About GEOFFREY ASHMUN

This page provides the complete NPI Profile along with additional information for Geoffrey Ashmun, a provider established in Federal Way, Washington with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1639716020 assigned on December 2019. The practitioner's primary taxonomy code is 101YM0800X with license number 5692 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1639716020
Provider Name
GEOFFREY ASHMUN MA
Gender
Male
Entity Type
Individual
Location Address
1600B SW DASH POINT RD # 2480 FEDERAL WAY, WA 98023
Location Phone
(831) 461-4346
Mailing Address
1600B SW DASH POINT RD # 2480 FEDERAL WAY, WA 98023
Is Sole Proprietor?
Yes
Enumeration Date
12-04-2019
Last Update Date
07-09-2025
Code Navigator

A mental health counselor like Geoffrey Ashmun provides treatment to individuals, families, couples, and groups for mental and emotional health issues and relationship problems. Mental health counselors treat clients with a variety of conditions, including anxiety, depression, grief, low self-esteem, stress, and suicidal impulses.

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

Counselor Mental Health

Taxonomy Code
101YM0800X
Type
Behavioral Health & Social Service Providers
License No.
5692
License State
CA

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)
1101YM0800XBehavioral Health & Social Service Providers

Counselor
Mental Health

61122449 (WA)
2101YM0800XBehavioral Health & Social Service Providers

Counselor
Mental Health

12605055-6004 (UT)
3101YM0800XBehavioral Health & Social Service Providers

Counselor
Mental Health

20489 (AZ)

Reviews for GEOFFREY ASHMUN MA

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1639716020, 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
6
Unchanged
Pos 3
3
Doubled → 6
Pos 4
9
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
1
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
0
Unchanged
Pos 9
2
Doubled → 4
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 3 → 6 7 → 14 → 5 6 → 12 → 3 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 6 + 9 + 1 + 4 + 1 + 1 + 2 + 0 + 4 + 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 1639716020.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1639716020, enumerated as an "individual" on December 04, 2019.

The provider is located at 1600B SW DASH POINT RD # 2480 FEDERAL WAY, WA 98023 and the phone number is (831) 461-4346.

Counselor with taxonomy code 101YM0800X and a focus in Mental Health.