Active NPI 1396802500 Individual Practitioner Female Practitioner

Dr. Gretchen Ahrendt , MD

Surgery • Aurora, CO

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Gretchen Ahrendt, MD is a certified Surgery practicing in Aurora, CO. With approximately 36 years of clinical experience since graduating from Johns Hopkins University School Of Medicine in 1990, Dr. Ahrendt delivers high-quality medical care to the local community at 12605 E 16TH AVE.

Dr. Ahrendt is affiliated with Catholic Health Initiatives Colorado and accepts Medicare assignment.

Frequently performed procedures and clinical services include partial removal of breast, new patient outpatient office visit, lymph node imaging during surgery. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

12605 E 16th Ave

Aurora, CO 800452545

Telephone 7208480000

Associated Practice Facility / Clinic

🏢 University Of Colorado Hospital Authority Facility NPI 1477531580

Medicare Profile & Education

Medical School

Johns Hopkins University School Of Medicine

Graduation Year

1990

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Aurora, CO

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

36 Yrs +14.4 yrs vs City Avg

City Avg: 21.6 Yrs

State Avg: 23.8 Yrs

Regional Practice Density

50 Specialists

Practicing in Aurora, CO (635 Statewide)

Telehealth Adoption Rate

4.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

79.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Ahrendt (36 Years) 36 Yrs

Aurora Specialty Average (21.6 Years) 21.6 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
19301 Partial removal of breast	13	12	$3335.00	$654.65
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	11	11	$720.00	$177.45

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
19301 Partial removal of breast	28	26	$3483.88	$668.38
38900 Lymph node imaging during surgery	21	21	$775.43	$142.34
99213 Established patient office or other outpatient visit, typically 15 minutes	19	18	$361.00	$92.65
38525 Biopsy or removal of lymph nodes of under the arm, open procedure	18	18	$2360.22	$230.09
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	15	11	$388.00	$98.49
99213 Established patient office or other outpatient visit, typically 15 minutes	14	11	$263.00	$66.61
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	13	13	$325.00	$83.40

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
19301 Partial removal of breast	22	21	$3486.59	$694.94
38525 Biopsy or removal of lymph nodes of under the arm, open procedure	20	20	$2347.80	$232.76
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	14	14	$325.00	$84.64
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	13	13	$659.00	$171.39
38900 Lymph node imaging during surgery	12	12	$708.00	$138.61

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
19301 Partial removal of breast	33	33	$3335.00	$630.42
38900 Lymph node imaging during surgery	24	24	$708.00	$134.91
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	23	16	$361.57	$101.56
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	21	17	$401.14	$129.00
38525 Biopsy or removal of lymph nodes of under the arm, open procedure	21	21	$2236.00	$217.97
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	16	16	$313.19	$85.07
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	15	15	$649.00	$172.90
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	14	14	$521.00	$138.48
19303 Total removal of breast	11	11	$7003.64	$1117.83

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	31	20	$311.55	$80.63
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	24	24	$304.00	$76.93
38900 Lymph node imaging during surgery	20	20	$743.40	$147.53
38525 Biopsy or removal of lymph nodes of under the arm, open procedure	19	19	$2353.68	$234.46
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	16	12	$311.56	$111.67
19301 Partial removal of breast	15	15	$3335.00	$685.12
19301 Partial removal of breast	15	13	$3335.00	$685.12
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	13	13	$512.00	$168.08

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	27	21	$310.41	$77.68
19301 Partial removal of breast	25	21	$3322.08	$676.55
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	21	21	$304.00	$76.83
38525 Biopsy or removal of lymph nodes of under the arm, open procedure	18	18	$2232.33	$247.76
38900 Lymph node imaging during surgery	17	17	$708.00	$143.31
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	14	14	$512.00	$129.57

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
19301 Partial removal of breast	46	41	$3532.26	$694.35
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	38	38	$526.63	$130.71
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	36	27	$315.81	$79.21
38525 Biopsy or removal of lymph nodes of under the arm, open procedure	34	34	$2425.00	$242.78
38900 Lymph node imaging during surgery	30	30	$731.60	$145.17
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	15	14	$438.27	$112.02
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	12	12	$303.83	$77.47

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	41	41	$511.61	$130.66
19301 Partial removal of breast	33	31	$3343.76	$699.48
38525 Biopsy or removal of lymph nodes of under the arm, open procedure	32	31	$2041.84	$227.33
38900 Lymph node imaging during surgery	29	29	$658.21	$144.91
19303 Total removal of breast	22	22	$5087.68	$1077.26
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	17	16	$308.76	$78.96

Medical Specialties & State Licenses

CMS Verified: 2024-09-04

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License CO DR.0058045

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Surgery

NUCC Taxonomy Code: 208600000X

State License PA MD427777

Hospital & Practice Group Affiliations

Catholic Health Initiatives Colorado

11700 W 2nd Pl, Lakewood, CO 802281716

Phone: 7203218080

Secondary Practice Locations

11700 W 2nd Pl, Mob 2 Ste 210

Lakewood, CO 802281716

Phone: 7203218080

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners

Dr. Jonathan Orsborn , MD

Pediatrics - Pediatric Emergency Medicine

NPI 1003013319

Doctor of Medicine (M.D.)

Dr. Emily Jones , MD

Internal Medicine

NPI 1003063140

Doctor of Medicine (M.D.)

Kate Coleman Minahan , FNP

Nurse Practitioner - Pediatrics

NPI 1003068859

Family Nurse Practitioner

Stacey Johnson , APRN

Nurse Practitioner - Adult Health

NPI 1003116997

Advanced Practice Registered Nurse

Andrea Hall , CRNA

Nurse Anesthetist, Certified Registered

NPI 1003125394

Certified Registered Nurse Anesthetist

Kristi Swim , FNP

Nurse Practitioner - Family

NPI 1003126442

Family Nurse Practitioner

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

9 Historical Events

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) September 10, 2024

Surgery (License #DR.0058045 in CO)

📍

Updated Practice Location November 19, 2019

Registered at 12605 E 16TH AVE, AURORA, CO 800452545 (Tel: 7208480000)

📍

Updated Business Mailing Address November 19, 2019

Registered at PO BOX 110429, AURORA, CO 800420429

✅

NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location July 08, 2007

Registered at 300 HALKET ST, PITTSBURGH, PA 152133108 (Tel: 4126414274)

📍

Updated Business Mailing Address July 08, 2007

Registered at 300 HALKET ST, PITTSBURGH, PA 152133108 (Tel: 4126414274)

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as GRETCHEN AHRENDT, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Surgery (License #MD427777 in PA)

🟢

Initial NPI Registration & Enumeration January 03, 2007

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1396802500

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: January 03, 2007

Last Update: September 10, 2024

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 110429

Aurora, CO 800420429

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.