DR. JOHN WILLIAM CROTTY O.D.
NPI 1104810795
Optometrist - Corneal and Contact Management in Auburn, NE

NPI Status: Active since September 09, 2005

Contact Information

922 ALDEN DR
AUBURN, NE
ZIP 68305
Phone: (402) 274-3218
Fax: (402) 274-4538

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  • Individual
  • Male
  • Optometrist
  • Corneal and Contact Management

About JOHN CROTTY

This page provides the complete NPI Profile along with additional information for John Crotty, a provider established in Auburn, Nebraska with a medical specialization in Optometrist, focusing in corneal and contact management . The healthcare provider is registered in the NPI registry with number 1104810795 assigned on September 2005. The practitioner's primary taxonomy code is 152WC0802X with license number 815 (NE). The provider is registered as an individual and his NPI record was last updated 17 years ago.

NPI
1104810795
Provider Name
DR. JOHN WILLIAM CROTTY O.D.
Gender
Male
Entity Type
Individual
Location Address
922 ALDEN DR AUBURN, NE 68305
Location Phone
(402) 274-3218
Location Fax
(402) 274-4538
Mailing Address
922 ALDEN DR AUBURN, NE 68305
Mailing Phone
(402) 274-3218
Mailing Fax
(402) 274-4538
Is Sole Proprietor?
No
Enumeration Date
09-09-2005
Last Update Date
12-03-2009
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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 Corneal and Contact Management

Taxonomy Code
152WC0802X
Type
Eye and Vision Services Providers
License No.
815
License State
NE
Taxonomy Description
The professional activities performed by an Optometrist related to the fitting of contact lenses to an eye, ongoing evaluation of the cornea's ability to sustain successful contact lens wear, and treatment of any external eye or corneal condition which can affect contact lens wear.

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)
1152WP0200XEye and Vision Services Providers

Optometrist
Pediatrics

815 (NE)

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
47-0610838OTHER (01)FEDERAL TAX I.D.
T77028MEDICARE UPIN (02) 
MC0048745OTHER (01)CONTROLLED SUBSTANCE REGI
815OTHER (01)NEOPTOMETRY LICENSE
096823MEDICARE PIN (08)NE 

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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 1104810795, 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 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
1
Doubled → 2
Pos 2
1
Unchanged
Pos 3
0
Doubled → 0
Pos 4
4
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
1
Unchanged
Pos 7
0
Doubled → 0
Pos 8
7
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
5
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 8 → 16 → 7 0 → 0 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 0 + 4 + 1 + 6 + 1 + 0 + 7 + 1 + 8 + 24 = 55

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

The next multiple of ten after 55 is 60. The difference is the calculated check digit.

60 - 55 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1104810795.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Optometrist
922 ALDEN DR
AUBURN, NE 68305
Optometrist
922 ALDEN DR
AUBURN, NE 68305
Optometrist
922 ALDEN DR
AUBURN, NE 68305

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1104810795, enumerated as an "individual" on September 09, 2005.

The provider is located at 922 ALDEN DR AUBURN, NE 68305 and the phone number is (402) 274-3218.

Optometrist with taxonomy code 152WC0802X and a focus in Corneal and Contact Management.

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