MR. GRAHAM BARTH KRETCHMAN MD
NPI 1851496848
Ophthalmology in Phoenix, AZ

NPI Status: Active since September 14, 2006

Contact Information

1010 E MCDOWELL
SUITE 406
PHOENIX, AZ
ZIP 85006
Phone: (602) 257-1499
Fax: (602) 253-7201

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  • Individual
  • Male
  • Ophthalmology

About GRAHAM KRETCHMAN

This page provides the complete NPI Profile along with additional information for Graham Kretchman, a provider established in Phoenix, Arizona with a medical specialization in Ophthalmology. The healthcare provider is registered in the NPI registry with number 1851496848 assigned on September 2006. The practitioner's primary taxonomy code is 207W00000X with license number 9683 (AZ). The provider is registered as an individual and his NPI record was last updated 18 years ago.

NPI
1851496848
Provider Name
MR. GRAHAM BARTH KRETCHMAN MD
Gender
Male
Entity Type
Individual
Location Address
1010 E MCDOWELL SUITE 406 PHOENIX, AZ 85006
Location Phone
(602) 257-1499
Location Fax
(602) 253-7201
Mailing Address
6711 E CAMELBACK RD #7 SCOTTSDALE, AZ 85251
Mailing Phone
(480) 424-3850
Mailing Fax
(602) 253-7201
Is Sole Proprietor?
Yes
Enumeration Date
09-14-2006
Last Update Date
02-11-2008
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Ophthalmologists like Graham Kretchman specialize in diagnosing and treating eye conditions. They may perform surgeries to correct vision issues or prevent vision loss due to diseases like glaucoma. Additionally, they can provide eyeglasses, prescribe contact lenses, and offer other vision-related services.

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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

Ophthalmology

Taxonomy Code
207W00000X
Type
Allopathic & Osteopathic Physicians
License No.
9683
License State
AZ
Taxonomy Description
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

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
C99802MEDICARE UPIN (02) 
215097MEDICAID (05)AZ 

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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 1851496848, 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 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
8
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
1
Unchanged
Pos 5
4
Doubled → 8
Pos 6
9
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
8
Unchanged
Pos 9
4
Doubled → 8
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 5 → 10 → 1 4 → 8 6 → 12 → 3 4 → 8

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 + 8 + 9 + 1 + 2 + 8 + 8 + 24 = 72

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

The next multiple of ten after 72 is 80. The difference is the calculated check digit.

80 - 72 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1851496848.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1851496848, enumerated as an "individual" on September 14, 2006.

The provider is located at 1010 E MCDOWELL SUITE 406 PHOENIX, AZ 85006 and the phone number is (602) 257-1499.

Ophthalmology with taxonomy code 207W00000X.

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