DR. FREDERICK NAFTOLIN MD
NPI 1598158107
Obstetrics & Gynecology in Woodbridge, CT

NPI Status: Active since March 07, 2015

Contact Information

4 STONEWALL LN
WOODBRIDGE, CT
ZIP 06525
Phone: (203) 298-9315
Fax: (203) 387-6068

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  • Individual
  • Male
  • Obstetrics & Gynecology

About FREDERICK NAFTOLIN

This page provides the complete NPI Profile along with additional information for Frederick Naftolin, a women's health care provider established in Woodbridge, Connecticut with a medical specialization in Obstetrics & Gynecology. The healthcare provider is registered in the NPI registry with number 1598158107 assigned on March 2015. The practitioner's primary taxonomy code is 207V00000X with license number 20310 (CA). The provider is registered as an individual and his NPI record was last updated 11 years ago.

NPI
1598158107
Provider Name
DR. FREDERICK NAFTOLIN MD
Gender
Male
Entity Type
Individual
Location Address
4 STONEWALL LN WOODBRIDGE, CT 06525
Location Phone
(203) 298-9315
Location Fax
(203) 387-6068
Mailing Address
4 STONEWALL LN WOODBRIDGE, CT 06525
Mailing Phone
(203) 298-9315
Mailing Fax
(203) 387-6068
Is Sole Proprietor?
Yes
Enumeration Date
03-07-2015
Last Update Date
03-07-2015
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Women's health care providers like Frederick Naftolin 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

Taxonomy Code
207V00000X
Type
Allopathic & Osteopathic Physicians
License No.
20310
License State
CA
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207V00000XAllopathic & Osteopathic Physicians

Obstetrics & Gynecology

021019 (CT)

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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 1598158107, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).

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
9
Doubled → 18 → 1 + 8
Pos 4
8
Unchanged
Pos 5
1
Doubled → 2
Pos 6
5
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
1
Unchanged
Pos 9
0
Doubled → 0
Check
7
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 9 → 18 → 9 1 → 2 8 → 16 → 7 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 8 + 8 + 2 + 5 + 1 + 6 + 1 + 0 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1598158107.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1598158107, enumerated as an "individual" on March 07, 2015.

The provider is located at 4 STONEWALL LN WOODBRIDGE, CT 06525 and the phone number is (203) 298-9315.

Obstetrics & Gynecology with taxonomy code 207V00000X.