MARK BLAKE HORTON M.D.
NPI 1376556985
Ophthalmology in Phoenix, AZ

NPI Status: Active since August 14, 2006

Contact Information

4212 N 16TH ST
PHOENIX INDIAN MEDICAL CENTER
PHOENIX, AZ
ZIP 85016
Phone: (602) 263-1511
Fax: (602) 263-1619

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  • Individual
  • Male
  • Ophthalmology

About MARK HORTON

This page provides the complete NPI Profile along with additional information for Mark Horton, a provider established in Phoenix, Arizona with a medical specialization in Ophthalmology. The healthcare provider is registered in the NPI registry with number 1376556985 assigned on August 2006. The practitioner's primary taxonomy code is 207W00000X with license number 16242 (AZ). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1376556985
Provider Name
MARK BLAKE HORTON M.D.
Gender
Male
Entity Type
Individual
Location Address
4212 N 16TH ST PHOENIX INDIAN MEDICAL CENTER PHOENIX, AZ 85016
Location Phone
(602) 263-1511
Location Fax
(602) 263-1619
Mailing Address
PO BOX 31001-0698 PASADENA, CA 91110
Mailing Phone
(602) 263-1511
Mailing Fax
(602) 263-1619
Is Sole Proprietor?
No
Enumeration Date
08-14-2006
Last Update Date
07-09-2007
Code Navigator

Ophthalmologists like Mark Horton 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.
16242
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.

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
290578MEDICAID (05)AZ 
H45412MEDICARE UPIN (02)AZ 
8HZ38EMEDICARE ID-TYPE UNSPECIFIED (04)AZPART B
AZ 0721700OTHER (01)AZBCBS
030078MEDICARE OSCAR/CERTIFICATION (06)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 1376556985, 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 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
3
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
6
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
5
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
9
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
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 7 → 14 → 5 5 → 10 → 1 6 → 12 → 3 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 4 + 6 + 1 + 0 + 5 + 1 + 2 + 9 + 1 + 6 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1376556985.

Other Providers at the Same Location


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

Pharmacist
4212 N 16TH ST
PHOENIX, AZ 85016
Nurse Practitioner (Obstetrics & Gynecology)
4212 N 16TH ST
PHOENIX, AZ 85016
Pharmacist
4212 N 16TH ST, PHARMACY
PHOENIX, AZ 85016
Family Medicine
4212 N 16TH ST
PHOENIX, AZ 85016
Physician Assistant (Medical)
4212 N 16TH ST
PHOENIX, AZ 85016
Family Medicine
4212 N 16TH ST
PHOENIX, AZ 85016
Dentist (General Practice)
4212 N 16TH ST
PHOENIX, AZ 85016
Family Medicine
4212 N 16TH ST
PHOENIX, AZ 85016
Optometrist
4212 N 16TH ST
PHOENIX, AZ 85016
Optometrist
4212 N 16TH ST
PHOENIX, AZ 85016
Family Medicine
4212 N 16TH ST
PHOENIX, AZ 85016
Emergency Medicine
4212 N 16TH ST, EMERGENCY DEPARTMENT
PHOENIX, AZ 85016
Otolaryngology
4212 N 16TH ST
PHOENIX, AZ 85016
Otolaryngology
4212 N 16TH ST
PHOENIX, AZ 85016
Nurse Practitioner (Obstetrics & Gynecology)
4212 N 16TH ST
PHOENIX, AZ 85016
Audiologist
4212 N 16TH ST
PHOENIX, AZ 85016
Anesthesiology
4212 N 16TH ST
PHOENIX, AZ 85016
Internal Medicine (Rheumatology)
4212 N 16TH ST
PHOENIX, AZ 85016
Advanced Practice Midwife
4212 N 16TH ST, OB/GYN DEPARTMENT
PHOENIX, AZ 85016
Dentist (Dental Public Health)
4212 N 16TH ST, DENTAL
PHOENIX, AZ 85016

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1376556985, enumerated as an "individual" on August 14, 2006.

The provider is located at 4212 N 16TH ST PHOENIX INDIAN MEDICAL CENTER PHOENIX, AZ 85016 and the phone number is (602) 263-1511.

Ophthalmology with taxonomy code 207W00000X.

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