GRAYHAWK EYE CENTER
NPI 1851572069
Preferred Provider Organization in Scottsdale, AZ

NPI Status: Active since November 15, 2007

Contact Information

20201 N SCOTTSDALE HEALTHCARE DR
SUITE 220
SCOTTSDALE, AZ
ZIP 85255
Phone: (480) 419-3937

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  • Preferred Provider Organization

About GRAYHAWK EYE CENTER

This page provides the complete NPI Profile along with additional information for Grayhawk Eye Center, a provider established in Scottsdale, Arizona operating as a Preferred Provider Organization. The healthcare provider is registered in the NPI registry with number 1851572069 assigned on November 2007. The practitioner's primary taxonomy code is 305R00000X with license number AZ3545 (AZ). The provider is registered as an organization and their NPI record was last updated one year ago. The authorized official of this NPI record is Gabriel J Perry D.o. (Owner)

NPI
1851572069
Provider Name
GRAYHAWK EYE CENTER
Entity Type
Organization
Location Address
20201 N SCOTTSDALE HEALTHCARE DR SUITE 220 SCOTTSDALE, AZ 85255
Location Phone
(480) 419-3937
Mailing Address
20201 N SCOTTSDALE HEALTHCARE DR SUITE 220 SCOTTSDALE, AZ 85255
Mailing Phone
(480) 419-3937
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
11-15-2007
Last Update Date
01-15-2025
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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

Preferred Provider Organization

Taxonomy Code
305R00000X
Type
Managed Care Organizations
License No.
AZ3545
License State
AZ
Taxonomy Description
A group of physicians and/or hospitals who contract with an employer to provide services to their employees. In a PPO, the patient may got to the physician of his/her choice, even if that physician does not participate in the PPO, but the patient receives care at a lower benefit level.

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

GABRIEL J PERRY D.O.

Authorized Official Title
OWNER
Authorized Official Phone
(480) 419-3937

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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 1851572069, 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 51. The final step is to find the difference between that total and the next multiple of ten (60 - 51 = 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
8
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
1
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
7
Unchanged
Pos 7
2
Doubled → 4
Pos 8
0
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
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 5 → 10 → 1 5 → 10 → 1 2 → 4 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 0 + 1 + 1 + 0 + 7 + 4 + 0 + 1 + 2 + 24 = 51

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

The next multiple of ten after 51 is 60. The difference is the calculated check digit.

60 - 51 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1851572069.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Pediatrics
20201 N SCOTTSDALE HEALTHCARE DR, SUITE 270
SCOTTSDALE, AZ 85255
Otolaryngology (Plastic Surgery within the Head & Neck)
20201 N SCOTTSDALE HEALTHCARE DR, SUITE 250
SCOTTSDALE, AZ 85255
Optometrist
20201 N SCOTTSDALE HEALTHCARE DR, SUITE 220
SCOTTSDALE, AZ 85255
Orthopaedic Surgery (Foot and Ankle Surgery)
20201 N SCOTTSDALE HEALTHCARE DR, STE 280
SCOTTSDALE, AZ 85255
Physician Assistant (Surgical)
20201 N SCOTTSDALE HEALTHCARE DR, SUITE 280
SCOTTSDALE, AZ 85255
Technician/Technologist (Ophthalmic)
20201 N SCOTTSDALE HEALTHCARE DR, #150
SCOTTSDALE, AZ 85255
Physician Assistant
20201 N SCOTTSDALE HEALTHCARE DR, STE 280
SCOTTSDALE, AZ 85255
General Practice
20201 N SCOTTSDALE HEALTHCARE DR, SUITE 290
SCOTTSDALE, AZ 85255
Dermatology (Procedural Dermatology)
20201 N SCOTTSDALE HEALTHCARE DR, SUITE 260
SCOTTSDALE, AZ 85255
Otolaryngology (Plastic Surgery within the Head & Neck)
20201 N SCOTTSDALE HEALTHCARE DR, STE 230
SCOTTSDALE, AZ 85255
Family Medicine
20201 N SCOTTSDALE HEALTHCARE DR, STE 280
SCOTTSDALE, AZ 85255
Otolaryngology (Plastic Surgery within the Head & Neck)
20201 N SCOTTSDALE HEALTHCARE DR, STE 230
SCOTTSDALE, AZ 85255
Plastic Surgery
20201 N SCOTTSDALE HEALTHCARE DR, SUITE120
SCOTTSDALE, AZ 85255
Nurse Practitioner (Adult Health)
20201 N SCOTTSDALE HEALTHCARE DR, SUITE 280
SCOTTSDALE, AZ 85255
Dermatology
20201 N SCOTTSDALE HEALTHCARE DR, STE 260
SCOTTSDALE, AZ 85255
Nursing Care
20201 N SCOTTSDALE HEALTHCARE DR, SUITE 260
SCOTTSDALE, AZ 85255
Physician Assistant (Medical)
20201 N SCOTTSDALE HEALTHCARE DR, SUITE 260
SCOTTSDALE, AZ 85255
Family Medicine
20201 N SCOTTSDALE HEALTHCARE DR, STE 280
SCOTTSDALE, AZ 85255
Otolaryngology (Plastic Surgery within the Head & Neck)
20201 N SCOTTSDALE HEALTHCARE DR, SUITE 250
SCOTTSDALE, AZ 85255
Dermatology
20201 N SCOTTSDALE HEALTHCARE DR, STE 260
SCOTTSDALE, AZ 85255

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1851572069, enumerated as an "organization" on November 15, 2007.

The provider is located at 20201 N SCOTTSDALE HEALTHCARE DR SUITE 220 SCOTTSDALE, AZ 85255 and the phone number is (480) 419-3937.

Preferred Provider Organization with taxonomy code 305R00000X.