JON KOLSTAD O D, P C
NPI 1639361058
Optometrist in Glasgow, MT

NPI Status: Active since August 10, 2007

Contact Information

630 3RD AVE S
GLASGOW, MT
ZIP 59230
Phone: (406) 228-8641
Fax: (406) 228-2094

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  • Organization
  • Optometrist
  • Accepts Insurance
  • Medicare Supplier
  • Does Not Accept Medicare Approved Payment
  • CLIA Number: 27D0908660
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 11-08-2027

About JON KOLSTAD O D, P C

This page provides the complete NPI Profile along with additional information for Jon Kolstad O D, P C, a provider established in Glasgow, Montana operating as a Optometrist. The healthcare provider is registered in the NPI registry with number 1639361058 assigned on August 2007. The practitioner's primary taxonomy code is 152W00000X with license number 616 (MT). The provider is registered as an organization and their NPI record was last updated 19 years ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Dr. Jon Christopher Kolstad O.d. Pc (Owner)

NPI
1639361058
Provider Name
JON KOLSTAD O D, P C
Entity Type
Organization
Location Address
630 3RD AVE S GLASGOW, MT 59230
Location Phone
(406) 228-8641
Location Fax
(406) 228-2094
Mailing Address
PO BOX 672 630 3RD AVE. SO. GLASGOW, MT 59230
Mailing Phone
(406) 228-8641
Mailing Fax
(406) 228-2094
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
08-10-2007
Last Update Date
01-03-2008
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Jon Kolstad O D, P C is a medicare supplier with PTAN 20638655 who does not accept Medicare assignment for all durable medical equipment and supplies. The provider may not accept the Medicare allowable as payment in full and may collect additional payment directly from the patient, and/or charge more than the Medicare allowable.The supplier carries the following product categories: Prosthetic Lenses: Conventional Eyeglasses or Prosthetic Lenses: Conventional Contact Lenses.

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

Optometrist

Taxonomy Code
152W00000X
Type
Eye and Vision Services Providers
License No.
616
License State
MT
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.

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)
1152WC0802XEye and Vision Services Providers

Optometrist
Corneal and Contact Management

616 (MT)
2152WL0500XEye and Vision Services Providers

Optometrist
Low Vision Rehabilitation

616 (MT)
3152WP0200XEye and Vision Services Providers

Optometrist
Pediatrics

616 (MT)
4152WS0006XEye and Vision Services Providers

Optometrist
Sports Vision

616 (MT)
5152WV0400XEye and Vision Services Providers

Optometrist
Vision Therapy

616 (MT)
6152WX0102XEye and Vision Services Providers

Optometrist
Occupational Vision

616 (MT)

Group Taxonomy 193400000X MULTIPLE SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Blue Preferred Bronze PPO? 201 - PPO
  • Blue Preferred Bronze PPO? 202 - PPO
  • Blue Preferred Bronze PPO? Standard - PPO
  • Blue Preferred Gold PPO? 204 - PPO
  • Blue Preferred Gold PPO? 901 - PPO
  • Blue Preferred Gold PPO? Standard - PPO
  • Blue Preferred Security PPO? 200 - PPO
  • Blue Preferred Silver PPO? 203 - PPO
  • Blue Preferred Silver PPO? 308 - PPO
  • Blue Preferred Silver PPO? Standard - PPO

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

DR. JON CHRISTOPHER KOLSTAD O.D. PC

Authorized Official Title
OWNER
Authorized Official Phone
(406) 228-8641

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
000082588MEDICARE PIN (08)MT 
410028594MEDICARE PIN (08)MT 
1094210002MEDICARE NSC (07)MT 
0000482647MEDICAID (05)MT 
0000480012MEDICAID (05)MT 
1094210001MEDICARE NSC (07)MT 
000082587MEDICARE PIN (08)MT 
0000483565MEDICAID (05)MT 

Medical Equipment Supplier

The provider carries the following medical supplies product categories:

PTAN
20638655
Accepts Medicare Assignment
NO
Specialities List
Optometrist.
Competitive Bidding
NO

Supplies List

  • Prosthetic Lenses: Conventional Eyeglasses - Conventional Eyeglasses
  • Prosthetic Lenses: Conventional Contact Lenses - Conventional Contact Lenses

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
27D0908660
Facility Type
Physician Office
Certificate Effective Date
November 09, 2025
Certificate Expiration Date
November 08, 2027
Laboratory Director
JON C. KOLSTAD
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Jon Kolstad O D, P C to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

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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 1639361058, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

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
3
Doubled → 6
Pos 6
6
Unchanged
Pos 7
1
Doubled → 2
Pos 8
0
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
8
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 3 → 6 1 → 2 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 6 + 9 + 6 + 6 + 2 + 0 + 1 + 0 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1639361058.

Other Providers at the Same Location


The following 2 providers are registered at the same or a nearby location.

Optometrist
630 3RD AVE S
GLASGOW, MT 59230
Optometrist
630 3RD AVE S
GLASGOW, MT 59230

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1639361058, enumerated as an "organization" on August 10, 2007.

The provider is located at 630 3RD AVE S GLASGOW, MT 59230 and the phone number is (406) 228-8641.

Optometrist with taxonomy code 152W00000X.

The provider might be accepting Accepts: Blue Cross and Blue Shield of Montana, Medicare. Please consult your insurance carrier or call the provider to verify.