Active NPI 1558455386 Individual Practitioner Male Practitioner

Dr. Andrew H Rikkers , DO

Surgery • Waterloo, IA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Andrew Rikkers, DO is a certified Surgery practicing in Waterloo, IA. With approximately 27 years of clinical experience since completing medical education in 1999, Dr. Rikkers delivers high-quality medical care to the local community at 1753 W RIDGEWAY AVE STE 107.

Dr. Rikkers maintains professional affiliations with Indianhead Medical Center Shell Lake, Inc., Delaware County Memorial Hospital, Cedar Valley Medical Specialists Pc and accepts Medicare assignment.

Frequently performed procedures and clinical services include follow-up hospital inpatient care per day, established patient outpatient office visit, initial hospital inpatient care per day. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1753 W Ridgeway Ave Ste 107

Waterloo, IA 507014588

Telephone 3198335907

Associated Practice Facility / Clinic

🏢 Cedar Valley Medical Specialists Pc Facility NPI 1073567780

Medicare Profile & Education

Medical School

Other

Graduation Year

1999

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Waterloo, IA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

27 Yrs +8.1 yrs vs City Avg

City Avg: 18.9 Yrs

State Avg: 26.0 Yrs

Regional Practice Density

18 Specialists

Practicing in Waterloo, IA (452 Statewide)

Telehealth Adoption Rate

5.6% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

74.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Rikkers (27 Years) 27 Yrs

Waterloo Specialty Average (18.9 Years) 18.9 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
99231 Follow-up hospital inpatient care per day, typically 15 minutes	94	48	$104.43	$45.34
99213 Established patient office or other outpatient visit, typically 15 minutes	71	67	$148.31	$83.63
99221 Initial hospital inpatient care per day, typically 30 minutes	52	50	$255.00	$75.28
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	28	28	$285.00	$102.03
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	27	25	$74.56	$51.75
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	23	23	$188.87	$118.27
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	19	19	$1695.00	$227.61

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	95	46	$103.48	$45.33
99213 Established patient office or other outpatient visit, typically 15 minutes	50	49	$145.70	$82.61
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	47	47	$281.17	$103.39
99221 Initial hospital inpatient care per day, typically 30 minutes	36	35	$250.56	$75.48
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	32	32	$335.00	$121.19
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	26	24	$65.00	$52.17
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	20	19	$1646.40	$214.28
47562 Removal of gallbladder using an endoscope	13	13	$2240.00	$591.10
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	12	12	$233.17	$118.58

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	89	43	$99.00	$36.62
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	78	78	$1695.00	$221.08
99221 Initial hospital inpatient care per day, typically 30 minutes	70	69	$239.00	$94.51
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	54	54	$267.87	$105.80
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	48	47	$1465.00	$52.38
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	39	39	$385.00	$158.85
99213 Established patient office or other outpatient visit, typically 15 minutes	37	35	$146.38	$86.18
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	30	29	$237.63	$122.57
47562 Removal of gallbladder using an endoscope	22	22	$2233.45	$599.24
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	16	15	$55.00	$16.98
76937 Ultrasonic guidance for blood vessel access	16	15	$61.00	$12.82
43251 Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare	13	13	$1735.00	$135.63
36558 Insertion of tunneled central venous tube for infusion (5 years or older)	12	11	$1830.00	$244.15
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	11	11	$1365.00	$166.60

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	63	33	$99.00	$36.17
99221 Initial hospital inpatient care per day, typically 30 minutes	38	38	$239.00	$95.94
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	34	34	$1917.79	$233.00
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	31	31	$385.00	$160.76
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	22	22	$1657.00	$70.73
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	19	19	$270.00	$107.26
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	18	18	$180.00	$68.95
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	18	18	$218.39	$5.09
99213 Established patient office or other outpatient visit, typically 15 minutes	17	17	$158.00	$87.58
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	14	14	$240.00	$124.54
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	11	11	$80.27	$17.88
47562 Removal of gallbladder using an endoscope	11	11	$2348.55	$617.69

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	86	75	$266.82	$4.93
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	59	58	$3178.58	$217.04
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	49	47	$2443.80	$88.71
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	42	37	$221.48	$72.32
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	32	32	$249.12	$69.08
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	31	17	$271.25	$66.32
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	15	12	$391.64	$89.24
99213 Established patient office or other outpatient visit, typically 15 minutes	14	13	$148.67	$46.89
45380 Biopsy of large bowel using an endoscope	14	13	$2504.29	$172.95
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	13	13	$187.23	$17.15

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	91	90	$253.37	$4.92
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	42	41	$2325.43	$91.80
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	42	42	$3028.02	$174.41
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	39	39	$231.95	$69.54
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	39	27	$259.98	$67.05
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	34	28	$219.51	$72.78
45388 Destruction of polyp or growth of large bowel using a flexible endoscope	32	32	$3035.16	$242.42
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	29	29	$178.86	$17.31
99213 Established patient office or other outpatient visit, typically 15 minutes	22	21	$146.42	$47.09
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	20	20	$3189.70	$308.44
99221 Initial hospital inpatient care per day, typically 30 minutes	20	20	$361.90	$92.46
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	19	18	$322.56	$102.40
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	19	12	$372.98	$95.90
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	16	13	$100.93	$23.44
45380 Biopsy of large bowel using an endoscope	14	14	$2374.86	$138.69
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	13	13	$2217.92	$173.45

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	77	76	$244.09	$5.00
45388 Destruction of polyp or growth of large bowel using a flexible endoscope	51	51	$2991.23	$252.20
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	36	24	$55.87	$24.13
99202 New patient office or other outpatient visit, typically 20 minutes	33	33	$124.73	$46.53
99213 Established patient office or other outpatient visit, typically 15 minutes	31	26	$101.07	$47.91
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	26	19	$193.50	$74.13
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	21	21	$2099.76	$101.61
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	13	13	$3092.38	$139.83
99221 Initial hospital inpatient care per day, typically 30 minutes	12	11	$406.13	$94.12

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	118	91	$89.34	$47.97
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	106	74	$40.62	$24.38
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	104	102	$305.13	$5.22
99202 New patient office or other outpatient visit, typically 20 minutes	69	69	$103.48	$47.81
45388 Destruction of polyp or growth of large bowel using a flexible endoscope	63	63	$2832.00	$259.96
99231 Follow-up hospital inpatient care per day, typically 15 minutes	55	38	$207.00	$37.61
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	53	44	$183.53	$75.01
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	34	32	$1895.00	$114.32
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	29	19	$273.00	$69.54
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	27	27	$187.89	$72.96
99221 Initial hospital inpatient care per day, typically 30 minutes	24	23	$439.00	$96.60
11042 Removal of skin and tissue, 20.0 sq cm or less	17	12	$541.94	$55.73
47562 Removal of gallbladder using an endoscope	16	16	$6700.08	$610.80
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	15	15	$1373.00	$173.41
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	13	13	$3197.00	$123.96
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	12	12	$584.00	$131.01

Medical Specialties & State Licenses

CMS Verified: 2022-03-09

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License IA DO-05746

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 WI 48190

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

43524200 (WI)

Commercial Insurance / Payer ID Cigna

390808509

Commercial Insurance / Payer ID Hirsp

43524200

Commercial Insurance / Payer ID Dean Health Plan

14028

Commercial Insurance / Payer ID Physicians Plus

2014477

Commercial Insurance / Payer ID Unity

390808509DR

Hospital & Practice Group Affiliations

Cedar Valley Medical Specialists Pc

201 E J Ave, Grundy Center, IA 506382028

Phone: 3198245421

Delaware County Memorial Hospital

709 W Main St, Manchester, IA 520571526

Phone: 5639277533

Indianhead Medical Center Shell Lake, Inc.

113 4th Ave, Shell Lake, WI 548714457

Peoples Memorial Hospital

1600 1st St E, Independence, IA 506443155

Phone: 3193320999

Cedar Valley Medical Specialists Pc

1753 W Ridgeway Ave, Waterloo, IA 507014588

Peoples Memorial Hospital

1600 1st St E, Independence, IA 506443155

Cedar Valley Medical Specialists Pc

1825 Logan Ave, Waterloo, IA 507031916

Phone: 3192353941

Indianhead Medical Center Shell Lake, Inc.

24670 State Rd, Siren, WI 548724419

Phone: 7153492910

Indianhead Medical Center Shell Lake, Inc.

24670 State Rd, Siren, WI 548724419

Phone: 7153492910

Practice Associates & Co-Workers

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

9 Associated Practitioners

Dr. Brian Gerrelts , MD

Surgery

NPI 1003869397

Doctor of Medicine (M.D.)

Barbara Salisbury , ARNP

Nurse Practitioner

NPI 1164083861

Advanced Registered Nurse Practitioner

Dr. David Henry , MD

Surgery

NPI 1285861120

Doctor of Medicine (M.D.)

Dr. Robert Cak , MD

Surgery

NPI 1609829688

Doctor of Medicine (M.D.)

Jayson Gesme

Surgery

NPI 1821042698

Dr. Melissa Garrett , MD

Surgery

NPI 1881910271

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

8 Historical Events

📍

Updated Practice Location March 09, 2022

Registered at 1753 W RIDGEWAY AVE STE 107, WATERLOO, IA 507014588 (Tel: 3198335907)

📍

Updated Business Mailing Address March 09, 2022

Registered at PO BOX 2758, WATERLOO, IA 507042758 (Tel: 3192355390)

✅

NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location July 08, 2007

Registered at 515 22ND AVE, MONROE, WI 535661569 (Tel: 6083242000)

📍

Updated Business Mailing Address July 08, 2007

Registered at 515 22ND AVE, MONROE, WI 535661569 (Tel: 6083242000)

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as ANDREW RIKKERS, DO

🎓

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

Surgery (License #48190 in WI)

🟢

Initial NPI Registration & Enumeration October 03, 2006

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: 1558455386

Entity Type:

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

Enumeration Date: October 03, 2006

Last Update: March 09, 2022

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 2758

Waterloo, IA 507042758

Phone: 3192355390

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.