COLBY WOLLENMAN MD
NPI 1013536655
Orthopaedic Surgery - Sports Medicine in Vail, CO

NPI Status: Active since April 14, 2020

Contact Information

181 W MEADOW DR STE 400
VAIL, CO
ZIP 81657
Phone: (970) 476-1100

NPI Profile Information
Primary Taxonomy
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Orthopaedic Surgery
Sports Medicine

About COLBY WOLLENMAN

This page provides the complete NPI Profile along with additional information for Colby Wollenman, a provider established in Vail, Colorado with a medical specialization in Orthopaedic Surgery, focusing in sports medicine . The healthcare provider is registered in the NPI registry with number 1013536655 assigned on April 2020. The practitioner's primary taxonomy code is 207XX0005X with license number DR.0074685 (CO). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI: 1013536655
Provider Name: COLBY WOLLENMAN MD
Gender: Male
Entity Type: Individual
Location Address: 181 W MEADOW DR STE 400 VAIL, CO 81657
Location Phone: (970) 476-1100
Mailing Address: PO BOX 660706 DALLAS, TX 75266
Is Sole Proprietor?: No
Enumeration Date: 04-14-2020
Last Update Date: 07-11-2025
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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: Orthopaedic Surgery Sports Medicine
Taxonomy Code: 207XX0005X
Type: Allopathic & Osteopathic Physicians
License No.: DR.0074685
License State: CO
Taxonomy Description: An orthopaedic surgeon trained in sports medicine provides appropriate care for all structures of the musculoskeletal system directly affected by participation in sporting activity. This specialist is proficient in areas including conditioning, training and fitness, athletic performance and the impact of dietary supplements, pharmaceuticals, and nutrition on performance and health, coordination of care within the team setting utilizing other health care professionals, field evaluation and management, soft tissue biomechanics and injury healing and repair. Knowledge and understanding of the principles and techniques of rehabilitation, athletic equipment and orthotic devices enables the specialist to prevent and manage athletic injuries.

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 1013536655, we treat the final digit (5) 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 45. The final step is to find the difference between that total and the next multiple of ten (50 - 45 = 5).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 2

Pos 4

Unchanged

Pos 5

Doubled → 10 → 1 + 0

Pos 6

Unchanged

Pos 7

Doubled → 12 → 1 + 2

Pos 8

Unchanged

Pos 9

Doubled → 10 → 1 + 0

Check

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 1 → 2 5 → 10 → 1 6 → 12 → 3 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 2 + 3 + 1 + 0 + 3 + 1 + 2 + 6 + 1 + 0 + 24 = 45

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

The next multiple of ten after 45 is 50. The difference is the calculated check digit.

50 - 45 = 5

This NPI is valid

The calculated check digit is 5, which matches the last digit of 1013536655.