ALFONSO MEJIA-ZELAYA MD
NPI 1558502245
Obstetrics & Gynecology in Blue Island, IL

NPI Status: Active since March 10, 2009

Contact Information

2320 HIGH ST
BLUE ISLAND, IL
ZIP 60406
Phone: (708) 388-5500
Fax: (708) 388-5672

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  • Individual
  • Male
  • Obstetrics & Gynecology

About ALFONSO MEJIA-ZELAYA

This page provides the complete NPI Profile along with additional information for Alfonso Mejia-zelaya, a women's health care provider established in Blue Island, Illinois with a medical specialization in Obstetrics & Gynecology. The healthcare provider is registered in the NPI registry with number 1558502245 assigned on March 2009. The practitioner's primary taxonomy code is 207V00000X with license number 036047993 (IL). The provider is registered as an individual and his NPI record was last updated 17 years ago.

NPI
1558502245
Provider Name
ALFONSO MEJIA-ZELAYA MD
Gender
Male
Entity Type
Individual
Location Address
2320 HIGH ST BLUE ISLAND, IL 60406
Location Phone
(708) 388-5500
Location Fax
(708) 388-5672
Mailing Address
2320 HIGH ST BLUE ISLAND, IL 60406
Mailing Phone
(708) 388-5500
Mailing Fax
(708) 388-5672
Is Sole Proprietor?
No
Enumeration Date
03-10-2009
Last Update Date
03-10-2009
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Women's health care providers like Alfonso Mejia-zelaya treat and diagnose diseases and conditions that affect a woman's physical and emotional health. Women's health professionals come from a variety of different specialties, including obstetrician/gynecologists, general surgeons, perinatologists, physician assistants, nurse practitioners or nurse midwives. A women's health provider might help you with family planning, breast care, pregnancy and child birth, osteoporosis, menopause, heart disease, etc.

Location Map

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

Obstetrics & Gynecology

Taxonomy Code
207V00000X
Type
Allopathic & Osteopathic Physicians
License No.
036047993
License State
IL
Taxonomy Description
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

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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 1558502245, 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
5
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
8
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
0
Unchanged
Pos 7
2
Doubled → 4
Pos 8
2
Unchanged
Pos 9
4
Doubled → 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 5 → 10 → 1 5 → 10 → 1 2 → 4 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 0 + 8 + 1 + 0 + 0 + 4 + 2 + 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 1558502245.

Other Providers at the Same Location


The following 17 providers are registered at the same or a nearby location.

Obstetrics & Gynecology
2320 HIGH ST
BLUE ISLAND, IL 60406
Pediatrics
2320 HIGH ST
BLUE ISLAND, IL 60406
Internal Medicine (Rheumatology)
2320 HIGH ST
BLUE ISLAND, IL 60406
Pediatrics (Neonatal-Perinatal Medicine)
2320 HIGH ST
BLUE ISLAND, IL 60406
Clinical Nurse Specialist (Adult Health)
2320 HIGH ST
BLUE ISLAND, IL 60406
Physician Assistant
2320 HIGH ST
BLUE ISLAND, IL 60406
Orthopaedic Surgery
2320 HIGH ST, RETIRED 12-31-2014
BLUE ISLAND, IL 60406
Surgery
2320 HIGH ST
BLUE ISLAND, IL 60406
Obstetrics & Gynecology
2320 HIGH ST
BLUE ISLAND, IL 60406
Family Medicine
2320 HIGH ST
BLUE ISLAND, IL 60406
Psychiatry & Neurology (Clinical Neurophysiology)
2320 HIGH ST
BLUE ISLAND, IL 60406
Internal Medicine
2320 HIGH ST
BLUE ISLAND, IL 60406
Surgery
2320 HIGH ST
BLUE ISLAND, IL 60406
Ophthalmology
2320 HIGH ST
BLUE ISLAND, IL 60406
Ophthalmology
2320 HIGH ST
BLUE ISLAND, IL 60406
Clinic/Center (Multi-Specialty)
2320 HIGH ST
BLUE ISLAND, IL 60406
General Practice
2320 HIGH ST
BLUE ISLAND, IL 60406

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1558502245, enumerated as an "individual" on March 10, 2009.

The provider is located at 2320 HIGH ST BLUE ISLAND, IL 60406 and the phone number is (708) 388-5500.

Obstetrics & Gynecology with taxonomy code 207V00000X.