DR. JOHN WESTLY HESSER M.D.
NPI 1114977501
Obstetrics & Gynecology - Maternal & Fetal Medicine in Tucson, AZ

NPI Status: Active since May 10, 2006

Contact Information

5301 E GRANT RD
5301 E GRANT RD
TUCSON, AZ
ZIP 85712
Phone: (520) 325-4651
Fax: (520) 325-0809

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  • Individual
  • Male
  • Obstetrics & Gynecology
  • Maternal & Fetal Medicine

About JOHN HESSER

This page provides the complete NPI Profile along with additional information for John Hesser, a women's health care provider established in Tucson, Arizona with a medical specialization in Obstetrics & Gynecology, focusing in maternal & fetal medicine . The healthcare provider is registered in the NPI registry with number 1114977501 assigned on May 2006. The practitioner's primary taxonomy code is 207VM0101X with license number 09274 (AZ). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1114977501
Provider Name
DR. JOHN WESTLY HESSER M.D.
Other Name Type
Other Name (5)
Gender
Male
Entity Type
Individual
Location Address
5301 E GRANT RD 5301 E GRANT RD TUCSON, AZ 85712
Location Phone
(520) 325-4651
Location Fax
(520) 325-0809
Mailing Address
5301 E GRANT RD PO BOX 41478 TUCSON, AZ 85712
Mailing Phone
(520) 325-4651
Mailing Fax
(520) 325-0809
Is Sole Proprietor?
No
Enumeration Date
05-10-2006
Last Update Date
07-08-2007
Code Navigator

Women's health care providers like John Hesser 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.

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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

Obstetrics & Gynecology Maternal & Fetal Medicine

Taxonomy Code
207VM0101X
Type
Allopathic & Osteopathic Physicians
License No.
09274
License State
AZ
Taxonomy Description
An obstetrician/gynecologist who cares for, or provides consultation on, patients with complications of pregnancy. This specialist has advanced knowledge of the obstetrical, medical and surgical complications of pregnancy and their effect on both the mother and the fetus. The specialist also possesses expertise in the most current diagnostic and treatment modalities used in the care of patients with complicated pregnancies.

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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 1114977501, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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
1
Doubled → 2
Pos 4
4
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
7
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
5
Unchanged
Pos 9
0
Doubled → 0
Check
1
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 1 → 2 9 → 18 → 9 7 → 14 → 5 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 2 + 4 + 1 + 8 + 7 + 1 + 4 + 5 + 0 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1114977501.

Other Providers at the Same Location


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

Psychiatric Unit
5301 E GRANT RD
TUCSON, AZ 85712
Advanced Practice Midwife
5301 E GRANT RD, OBSTETRIX MEDICAL GROUP OF AZ, P.C.
TUCSON, AZ 85712
Specialist
5301 E GRANT RD
TUCSON, AZ 85712
Genetic Counselor, MS
5301 E GRANT RD, OBSTETRIX MEDICAL GROUP OF ARIZONA
TUCSON, AZ 85712
Pathology (Anatomic Pathology & Clinical Pathology)
5301 E GRANT RD
TUCSON, AZ 85712
Pathology (Anatomic Pathology & Clinical Pathology)
5301 E GRANT RD
TUCSON, AZ 85712
Pathology (Anatomic Pathology & Clinical Pathology)
5301 E GRANT RD
TUCSON, AZ 85712
Nurse Practitioner (Neonatal, Critical Care)
5301 E GRANT RD
TUCSON, AZ 85712
Pharmacist
5301 E GRANT RD
TUCSON, AZ 85712
Surgery (Vascular Surgery)
5301 E GRANT RD
TUCSON, AZ 85712
Anesthesiology
5301 E GRANT RD
TUCSON, AZ 85712
Physical Therapist (Pediatrics)
5301 E GRANT RD
TUCSON, AZ 85712
Occupational Therapist (Pediatrics)
5301 E GRANT RD
TUCSON, AZ 85712
Occupational Therapy Assistant
5301 E GRANT RD
TUCSON, AZ 85712
Speech-Language Pathologist
5301 E GRANT RD
TUCSON, AZ 85712
Nurse Practitioner (Adult Health)
5301 E GRANT RD
TUCSON, AZ 85712
Anesthesiology
5301 E GRANT RD, THMEP
TUCSON, AZ 85712
Nurse Practitioner (Family)
5301 E GRANT RD, FAST TRACK BLDG
TUCSON, AZ 85712
Obstetrics & Gynecology
5301 E GRANT RD
TUCSON, AZ 85712
Pharmacist
5301 E GRANT RD
TUCSON, AZ 85712

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1114977501, enumerated as an "individual" on May 10, 2006.

The provider is located at 5301 E GRANT RD 5301 E GRANT RD TUCSON, AZ 85712 and the phone number is (520) 325-4651.

Obstetrics & Gynecology with taxonomy code 207VM0101X and a focus in Maternal & Fetal Medicine.