NPPES file of Aug 9, 2026

Gretchen A. Frey, MD

Obstetrics & Gynecology Physician · Denver, CO

Gretchen A. Frey, MD is an obstetrics & gynecology physician with a practice address in Denver, Colorado, and NPI 1326154014, issued on Aug 22, 2006. Check the license (Colorado 27822, as entered in NPPES) on the Colorado Medical Board; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1326154014
Name
Gretchen A. Frey
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
27822 CO
Self-reported in NPPES; status is on the state search
Practice location
4700 E Iliff Ave, Denver, CO 80222
Phone
(303) 584-8900
Enumerated
Aug 22, 2006
Record last updated
Mar 22, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(720) 524-9475
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

8 nearest obstetrics & gynecology physician records → All 906 in Colorado → Look up another NPI →

Also registered at 4700 E Iliff Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Colleen Busch, M.S.N., F.N.P.Family Nurse Practitioner1154465938
  2. Jennifer Cammilleri, FNP-BCFamily Nurse Practitioner1194193631
  3. Haley Chiado, PA-CMedical Physician Assistant1306216627
  4. Janet Garcia, FNPFamily Nurse Practitioner1952003733
  5. Robert Gleser, M.D.Internal Medicine Physician1679538516
  6. Kristin Haber, MDInternal Medicine Physician1598835894

Verify Gretchen A. Frey in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 27822    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Colorado license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Gretchen A. Frey among 906 obstetrics & gynecology physician records in Colorado

Gretchen A. Frey, MD is one of 906 obstetrics & gynecology physician records with a practice address in Colorado. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 57% newer
  • In a Medicare fileNo · 69% of these records are
  • In the CMS Doctors and Clinicians fileNo · 56% of these records are
  • Record last updated2019 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Colorado

There are 906 obstetrics & gynecology physician records in Colorado. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 906 in Colorado → Every provider in Denver → Obstetrics & Gynecology Physician nationwide →

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Madeline Cole, MDDenver, CO 802211942688015
  2. Maria Salinas, MDDenver, CO 802211770613549
  3. Tamara Willis-Buckley, MDDenver, CO 802211669413126
  4. Erika Arceneaux, MDDenver, CO 802201265936041
  5. Abigail Barnes, MDDenver, CO 802201154958049
  6. Vera Brink, MDDenver, CO 802201255828448
  7. Gabrielle Fangman, MDDenver, CO 802201972184430
  8. Elizabeth Hoffman, MDDenver, CO 802201821651308

Common questions

What is Gretchen A. Frey, MD's NPI number?

Gretchen A. Frey, MD's National Provider Identifier (NPI) is 1326154014, issued on Aug 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gretchen A. Frey, MD located?

The NPPES record lists a practice address at 4700 E Iliff Ave, Denver, CO, 80222. Phone: (303) 584-8900. Providers update this record themselves, so call before visiting.

How can I verify Gretchen A. Frey, MD's license?

NPPES lists Colorado license number 27822, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.