GRETCHEN AHRENDT MD
NPI 1396802500
Surgery in Aurora, CO
About Gretchen Ahrendt Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GRETCHEN AHRENDT MD (NPI 1396802500) is an individual surgery provider in Aurora, Colorado, licensed in Colorado (DR.0058045) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS, maintains a secondary practice location in Lakewood, and is a graduate of Johns Hopkins University School Of Medicine (1990).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Gretchen Ahrendt Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Gretchen Ahrendt reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Denver, CO 80230
- Reassigned Medicare billing, Colorado enrollment
- 1,193 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 80045 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Gretchen Ahrendt's NPI number?
The NPI number for Gretchen Ahrendt is 1396802500. It was assigned to this individual provider in the NPPES registry on January 3, 2007.
Where is Gretchen Ahrendt located?
Gretchen Ahrendt practices at 12605 E 16th Ave, Aurora, CO 80045. The listed phone number is (720) 848-0000.
What is Gretchen Ahrendt's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Gretchen Ahrendt enrolled in Medicare?
Yes. Gretchen Ahrendt is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Gretchen Ahrendt's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gretchen Ahrendt reassigns Medicare benefits to Catholic Health Initiatives Colorado (Denver, CO). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gretchen Ahrendt's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Gretchen Ahrendt was last updated on September 10, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Gretchen Ahrendt, MD · NPI 1396802500
Surgery physician in Aurora, Colorado. Individual provider, active in the CMS NPPES registry since January 3, 2007.
## Identity
- **NPI:** 1396802500 (Entity type: Individual)
- **Enumerated:** January 3, 2007
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** DR.0058045 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 12605 E 16TH AVE, Aurora, CO 80045-2545
- **Phone:** (720) 848-0000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Catholic Health Initiatives Colorado (NPI 1821860339, Denver, CO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Johns Hopkins University School Of Medicine, class of 1990
## Record status
- **NPPES last updated:** September 10, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1396802500) · Data from the CMS NPPES public registry.