DR. RYAN KENT LARSEN DMD
NPI 1295986396
Dentist - Dentist Anesthesiologist in Billings, MT

NPI Status: Active since October 07, 2008

Contact Information

3031 GRAND AVE #198
BILLINGS, MT
ZIP 59102
Phone: (406) 855-0844
Fax: (406) 206-6925

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  • Individual
  • Male
  • Dentist
  • Dentist Anesthesiologist

About RYAN LARSEN

This page provides the complete NPI Profile along with additional information for Ryan Larsen, a provider established in Billings, Montana with a medical specialization in Dentist, focusing in dentist anesthesiologist . The healthcare provider is registered in the NPI registry with number 1295986396 assigned on October 2008. The practitioner's primary taxonomy code is 1223D0004X with license number DEN-DEN-LIC-7687 (MT). The provider is registered as an individual and his NPI record was last updated 3 years ago.

NPI
1295986396
Provider Name
DR. RYAN KENT LARSEN DMD
Gender
Male
Entity Type
Individual
Location Address
3031 GRAND AVE #198 BILLINGS, MT 59102
Location Phone
(406) 855-0844
Location Fax
(406) 206-6925
Mailing Address
3031 GRAND AVE #198 BILLINGS, MT 59102
Mailing Phone
(406) 855-0844
Mailing Fax
(406) 206-6925
Is Sole Proprietor?
Yes
Enumeration Date
10-07-2008
Last Update Date
02-21-2023
Code Navigator

A dentist like Ryan Larsen is a skilled in and licensed provider that diagnoses and treats problems with patients teeth, gums, and related parts of the mouth. Dentists educate patients on how to take care of the teeth and gums and provide information on diet choices that affect oral health. Dentists must be licensed in the state in which they work.

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

Dentist Dentist Anesthesiologist

Taxonomy Code
1223D0004X
Type
Dental Providers
License No.
DEN-DEN-LIC-7687
License State
MT
Taxonomy Description
A dentist who has successfully completed an accredited postdoctoral anesthesiology residency training program for dentists of two or more years duration, in accord with Commission on Dental Accreditation's Standards for Dental Anesthesiology Residency Programs, and/or meets the eligibility requirements for examination by the American Dental Board of Anesthesiology.

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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 1295986396, we treat the final digit (6) 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 74. The final step is to find the difference between that total and the next multiple of ten (80 - 74 = 6).

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

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 8 + 5 + 1 + 8 + 8 + 1 + 2 + 3 + 1 + 8 + 24 = 74

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

The next multiple of ten after 74 is 80. The difference is the calculated check digit.

80 - 74 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1295986396.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Dentist (Dentist Anesthesiologist)
3031 GRAND AVE #198
BILLINGS, MT 59102

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1295986396, enumerated as an "individual" on October 07, 2008.

The provider is located at 3031 GRAND AVE #198 BILLINGS, MT 59102 and the phone number is (406) 855-0844.

Dentist with taxonomy code 1223D0004X and a focus in Dentist Anesthesiologist.