DR. GERALD WALTER SHAY M.D.
NPI 1669770509
Obstetrics & Gynecology in Mount Horeb, WI

NPI Status: Active since March 01, 2011

Contact Information

9017 EARLY AUTUMN RD
MOUNT HOREB, WI
ZIP 53572
Phone: (160) 843-7177

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  • Individual
  • Male
  • Obstetrics & Gynecology

About GERALD SHAY

This page provides the complete NPI Profile along with additional information for Gerald Shay, a women's health care provider established in Mount Horeb, Wisconsin with a medical specialization in Obstetrics & Gynecology. The healthcare provider is registered in the NPI registry with number 1669770509 assigned on March 2011. The practitioner's primary taxonomy code is 207V00000X with license number 16845 (WI). The provider is registered as an individual and his NPI record was last updated 15 years ago.

NPI
1669770509
Provider Name
DR. GERALD WALTER SHAY M.D.
Gender
Male
Entity Type
Individual
Location Address
9017 EARLY AUTUMN RD MOUNT HOREB, WI 53572
Location Phone
(160) 843-7177
Mailing Address
9017 EARLY AUTUMN RD MOUNT HOREB, WI 53572
Mailing Phone
(160) 843-7177
Is Sole Proprietor?
Yes
Enumeration Date
03-01-2011
Last Update Date
03-01-2011
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Women's health care providers like Gerald Shay 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.
16845
License State
WI
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 1669770509, 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 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
6
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
9
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
7
Unchanged
Pos 7
0
Doubled → 0
Pos 8
5
Unchanged
Pos 9
0
Doubled → 0
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 6 → 12 → 3 7 → 14 → 5 0 → 0 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 2 + 9 + 1 + 4 + 7 + 0 + 5 + 0 + 24 = 61

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

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1669770509.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1669770509, enumerated as an "individual" on March 01, 2011.

The provider is located at 9017 EARLY AUTUMN RD MOUNT HOREB, WI 53572 and the phone number is (160) 843-7177.

Obstetrics & Gynecology with taxonomy code 207V00000X.