ERIC A. AHLVIN O.D.
NPI 1134178759
Optometrist in Galena, IL

NPI Status: Active since May 09, 2006

Contact Information

982 JAMES ST
GALENA, IL
ZIP 61036
Phone: (815) 777-2566
Fax: (815) 777-0116

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  • Individual
  • Male
  • Optometrist

About ERIC AHLVIN

This page provides the complete NPI Profile along with additional information for Eric Ahlvin, a provider established in Galena, Illinois with a medical specialization in Optometrist. The healthcare provider is registered in the NPI registry with number 1134178759 assigned on May 2006. The practitioner's primary taxonomy code is 152W00000X with license number 046-006510 (IL). The provider is registered as an individual and his NPI record was last updated 16 years ago.

NPI
1134178759
Provider Name
ERIC A. AHLVIN O.D.
Gender
Male
Entity Type
Individual
Location Address
982 JAMES ST GALENA, IL 61036
Location Phone
(815) 777-2566
Location Fax
(815) 777-0116
Mailing Address
1500 ASSOCIATES DR DUBUQUE, IA 52002
Mailing Phone
(563) 584-4100
Mailing Fax
(815) 777-0116
Is Sole Proprietor?
No
Enumeration Date
05-09-2006
Last Update Date
09-01-2010
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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

Optometrist

Taxonomy Code
152W00000X
Type
Eye and Vision Services Providers
License No.
046-006510
License State
IL
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)
1152W00000XEye and Vision Services Providers

Optometrist

2650-035 (WI)

Insurance Plans Accepted

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

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.

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
046006510MEDICAID (05)IL 
T37494MEDICARE UPIN (02) 
653312MEDICARE ID-TYPE UNSPECIFIED (04)IL 

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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 1134178759, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

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
1
Unchanged
Pos 3
3
Doubled → 6
Pos 4
4
Unchanged
Pos 5
1
Doubled → 2
Pos 6
7
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
7
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
9
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 1 → 2 8 → 16 → 7 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 6 + 4 + 2 + 7 + 1 + 6 + 7 + 1 + 0 + 24 = 61

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

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1134178759.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1134178759, enumerated as an "individual" on May 09, 2006.

The provider is located at 982 JAMES ST GALENA, IL 61036 and the phone number is (815) 777-2566.

Optometrist with taxonomy code 152W00000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.