Doctor profile · Federal record

Dr. Gretchen Ahrendt, MD

Surgery Physician (CMS: General Surgery) · Surgery Physician · Aurora, CO

  • NPI 1396802500
  • Accepts Medicare
  • MIPS 93.3 / 100 · 2023
  • 36 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
12605 E 16Th Ave
Aurora, CO 800452545
(720) 848-0000
Additional location
11700 W 2Nd Pl, Mob 2 Ste 210
Lakewood, CO 802281716
(720) 321-8080
fax (720) 321-8081
Mailing address
Po Box 110429
Aurora, CO 800420429

Credentials & registration

NPPES · NUCC
NPI registered
January 2007 — 19 yrs on file
Profile last updated
September 10, 2024
Year of graduation
1990 — 36 yrs since
Specialty taxonomy
208600000X — NUCC code
State licenses (2)
Colorado #DR.0058045 · Pennsylvania #MD427777

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1396802500. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
128
Distinct HCPCS
7
Medicare allowed
$31,100
HCPCS Description Services Patients Avg allowed
19301 Partial removal of breast 28 26 $668
38900 Imaging of lymph nodes during surgery 21 21 $142
99213 Established patient office or other outpatient visit, 20-29 minutes 19 18 $93
38525 Biopsy or removal of deep lymph nodes of underarm 18 18 $230
99214 Established patient office or other outpatient visit, 30-39 minutes 15 11 $98
99213 Established patient office or other outpatient visit, 20-29 minutes 14 11 $67
99203 New patient office or other outpatient visit, 30-44 minutes 13 13 $83

In context: peer comparison

Among 6 peers in Aurora Surgery Physician, average services per provider: 148. This provider delivers 0.9× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$254
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
ImpediMed, INC. 1 $170.11
Merit Medical Systems INC 1 $84.33

By nature of payment

Food and Beverage
$254

Frequently asked questions

Auto-generated from federal data
What is Dr. Gretchen Ahrendt's medical specialty?
Dr. Gretchen Ahrendt practices Surgery Physician in Aurora, CO.
Where does Dr. Gretchen Ahrendt practice?
Dr. Gretchen Ahrendt practices at 12605 E 16Th Ave, Aurora, CO 800452545. Office phone: 7208480000.
What is Dr. Gretchen Ahrendt's NPI?
Dr. Gretchen Ahrendt's National Provider Identifier (NPI) is 1396802500, issued by NPPES.
Does Dr. Gretchen Ahrendt accept Medicare assignment?
Yes. Dr. Gretchen Ahrendt accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gretchen Ahrendt commonly perform?
Top Medicare-reported procedures in 2023: Partial removal of breast (HCPCS 19301); Imaging of lymph nodes during surgery (HCPCS 38900); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.