GRETCHEN A FREY MD
NPI 1326154014
Obstetrics & Gynecology in Denver, CO

NPI Status: Active since August 22, 2006

Contact Information

4700 E ILIFF AVE
DENVER, CO
ZIP 80222
Phone: (303) 584-8900
Fax: (720) 524-9475

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  • Individual
  • Female
  • Obstetrics & Gynecology

About GRETCHEN FREY

This page provides the complete NPI Profile along with additional information for Gretchen Frey, a women's health care provider established in Denver, Colorado with a medical specialization in Obstetrics & Gynecology. The healthcare provider is registered in the NPI registry with number 1326154014 assigned on August 2006. The practitioner's primary taxonomy code is 207V00000X with license number 27822 (CO). The provider is registered as an individual and her NPI record was last updated 7 years ago.

NPI
1326154014
Provider Name
GRETCHEN A FREY MD
Gender
Female
Entity Type
Individual
Location Address
4700 E ILIFF AVE DENVER, CO 80222
Location Phone
(303) 584-8900
Location Fax
(720) 524-9475
Mailing Address
8055 E TUFTS AVE STE 230 DENVER, CO 80237
Mailing Phone
(303) 584-8900
Mailing Fax
(720) 524-9475
Is Sole Proprietor?
No
Enumeration Date
08-22-2006
Last Update Date
03-22-2019
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Women's health care providers like Gretchen Frey 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.
27822
License State
CO
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 1326154014, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

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

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 4 + 6 + 2 + 5 + 8 + 0 + 2 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1326154014.

Other Providers at the Same Location


The following 16 providers are registered at the same or a nearby location.

Podiatrist (Primary Podiatric Medicine)
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DENVER, CO 80222
Massage Therapist
4700 E ILIFF AVE
DENVER, CO 80222
Dietitian, Registered
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DENVER, CO 80222
Physical Therapist
4700 E ILIFF AVE
DENVER, CO 80222
Acupuncturist
4700 E ILIFF AVE
DENVER, CO 80222
Internal Medicine
4700 E ILIFF AVE
DENVER, CO 80222
Internal Medicine
4700 E ILIFF AVE
DENVER, CO 80222
Internal Medicine
4700 E ILIFF AVE
DENVER, CO 80222
Internal Medicine
4700 E ILIFF AVE
DENVER, CO 80222
Nurse Practitioner (Family)
4700 E ILIFF AVE
DENVER, CO 80222
Physician Assistant (Medical)
4700 E ILIFF AVE
DENVER, CO 80222
Nurse Practitioner (Family)
4700 E ILIFF AVE
DENVER, CO 80222
Nurse Practitioner (Family)
4700 E ILIFF AVE
DENVER, CO 80222
Physician Assistant
4700 E ILIFF AVE
DENVER, CO 80222
Nurse Practitioner
4700 E ILIFF AVE
DENVER, CO 80222
Psychiatry & Neurology (Neurology)
4700 E ILIFF AVE
DENVER, CO 80222

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1326154014, enumerated as an "individual" on August 22, 2006.

The provider is located at 4700 E ILIFF AVE DENVER, CO 80222 and the phone number is (303) 584-8900.

Obstetrics & Gynecology with taxonomy code 207V00000X.