GRIFFITH LARSON LPC
NPI 1205517232
Counselor - Professional in Aurora, CO

NPI Status: Active since July 31, 2023

Contact Information

791 CHAMBERS RD
AURORA, CO
ZIP 80011
Phone: (303) 617-2300

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  • Individual
  • Male
  • Counselor
  • Professional
  • PECOS Enrolled

About GRIFFITH LARSON

This page provides the complete NPI Profile along with additional information for Griffith Larson, a provider established in Aurora, Colorado with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1205517232 assigned on July 2023. The practitioner's primary taxonomy code is 101YP2500X with license number LPC.0023449 (CO). The provider is registered as an individual and his NPI record was last updated February 2026.

NPI
1205517232
Provider Name
GRIFFITH LARSON LPC
Gender
Male
Entity Type
Individual
Location Address
791 CHAMBERS RD AURORA, CO 80011
Location Phone
(303) 617-2300
Mailing Address
1290 CHAMBERS RD AURORA, CO 80011
Is Sole Proprietor?
No
Enumeration Date
07-31-2023
Last Update Date
02-17-2026
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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

Counselor Professional

Taxonomy Code
101YP2500X
Type
Behavioral Health & Social Service Providers
License No.
LPC.0023449
License State
CO

Medicare Participation & PECOS Enrollment Status

Griffith Larson 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 and Durable Medical Equipment (DME).

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): No

  • Eligible to Order or Refer Power Mobility Devices: No

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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 1205517232, 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 48. The final step is to find the difference between that total and the next multiple of ten (50 - 48 = 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
2
Unchanged
Pos 3
0
Doubled → 0
Pos 4
5
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
1
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
2
Unchanged
Pos 9
3
Doubled → 6
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 0 → 0 5 → 10 → 1 7 → 14 → 5 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 0 + 5 + 1 + 0 + 1 + 1 + 4 + 2 + 6 + 24 = 48

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

The next multiple of ten after 48 is 50. The difference is the calculated check digit.

50 - 48 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1205517232.

Other Providers at the Same Location


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

Social Worker (Clinical)
791 CHAMBERS RD, SUITE 411F
AURORA, CO 80011
Counselor (Mental Health)
791 CHAMBERS RD
AURORA, CO 80011
Registered Nurse
791 CHAMBERS RD
AURORA, CO 80011
Social Worker
791 CHAMBERS RD
AURORA, CO 80011
Case Manager/Care Coordinator
791 CHAMBERS RD
AURORA, CO 80011
Case Manager/Care Coordinator
791 CHAMBERS RD
AURORA, CO 80011
Case Manager/Care Coordinator
791 CHAMBERS RD
AURORA, CO 80011
Social Worker (Clinical)
791 CHAMBERS RD
AURORA, CO 80011
Case Manager/Care Coordinator
791 CHAMBERS RD
AURORA, CO 80011
Counselor (Professional)
791 CHAMBERS RD
AURORA, CO 80011
Physician Assistant (Medical)
791 CHAMBERS RD
AURORA, CO 80011
Psychologist
791 CHAMBERS RD
AURORA, CO 80011
Registered Nurse
791 CHAMBERS RD
AURORA, CO 80011
Counselor (Mental Health)
791 CHAMBERS RD
AURORA, CO 80011
Case Manager/Care Coordinator
791 CHAMBERS RD
AURORA, CO 80011
Student in an Organized Health Care Education/Training Program
791 CHAMBERS RD
AURORA, CO 80011
Physician Assistant (Medical)
791 CHAMBERS RD
AURORA, CO 80011
Case Manager/Care Coordinator
791 CHAMBERS RD
AURORA, CO 80011
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
791 CHAMBERS RD
AURORA, CO 80011
Case Manager/Care Coordinator
791 CHAMBERS RD
AURORA, CO 80011

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1205517232, enumerated as an "individual" on July 31, 2023.

The provider is located at 791 CHAMBERS RD AURORA, CO 80011 and the phone number is (303) 617-2300.

Counselor with taxonomy code 101YP2500X and a focus in Professional.