Active NPI 1508817040 Individual Practitioner Male Practitioner

Dr. Douglas B Aach , MD

Surgery • Shiloh, IL

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Douglas Aach, MD is a certified Surgery practicing in Shiloh, IL. With approximately 40 years of clinical experience since graduating from University Of Missouri, Kansas City, School Of Medicine in 1986, Dr. Aach delivers high-quality medical care to the local community at 1414 CROSS STREET.

Dr. Aach is affiliated with Lincoln Surgical Associates, Ltd. and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, new patient outpatient office visit, biopsy of breast and placement of locating device using ultrasound, first growth. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1414 Cross Street
Suite 330

Shiloh, IL 622692998

Telephone 6182777400

Fax 6182777422

Associated Practice Facility / Clinic

🏢 Lincoln Surgical Group Facility NPI 1700962271

Medicare Profile & Education

Medical School

University Of Missouri, Kansas City, School Of Medicine

Graduation Year

1986

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Shiloh, IL

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

40 Yrs +18.9 yrs vs City Avg

City Avg: 21.1 Yrs

State Avg: 27.3 Yrs

Regional Practice Density

11 Specialists

Practicing in Shiloh, IL (1624 Statewide)

Telehealth Adoption Rate

18.2% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

77.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Aach (40 Years) 40 Yrs

Shiloh Specialty Average (21.1 Years) 21.1 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
99213 Established patient office or other outpatient visit, typically 15 minutes	91	84	$240.00	$88.35
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	44	44	$445.00	$164.72
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	30	27	$340.00	$124.45
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	27	24	$145.00	$54.60
19083 Biopsy of breast and placement of locating device using ultrasound, first growth	22	22	$1650.00	$153.22
19301 Partial removal of breast	16	14	$1900.00	$692.83
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	15	15	$300.00	$109.47
38525 Biopsy or removal of lymph nodes of under the arm, open procedure	13	13	$1250.00	$231.17
38900 Lymph node imaging during surgery	13	13	$400.00	$145.88
19081 Biopsy of breast accessed through the skin with stereotactic guidance	11	11	$1700.00	$161.48

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	171	116	$240.00	$85.92
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	46	46	$400.87	$159.89
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	27	25	$340.00	$120.09
19083 Biopsy of breast and placement of locating device using ultrasound, first growth	18	18	$1650.00	$150.11
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	15	15	$145.00	$54.25
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	15	15	$268.00	$108.31

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	173	145	$240.00	$90.11
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	75	75	$357.67	$169.26
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	38	38	$340.00	$124.31
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	38	36	$145.00	$54.01
19083 Biopsy of breast and placement of locating device using ultrasound, first growth	28	28	$1650.00	$157.80
19301 Partial removal of breast	16	14	$1900.00	$718.41
38900 Lymph node imaging during surgery	16	16	$400.00	$151.34
38525 Biopsy or removal of lymph nodes of under the arm, open procedure	14	14	$1250.00	$255.01
19081 Biopsy of breast accessed through the skin with stereotactic guidance	12	12	$1700.00	$169.44
10005 Fine needle aspiration of first lesion using ultrasound guidance	12	12	$335.00	$73.99
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	11	11	$240.00	$113.85

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	182	159	$195.16	$91.74
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	76	76	$350.00	$169.08
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	43	43	$240.00	$114.16
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	30	29	$277.00	$130.99
10005 Fine needle aspiration of first lesion using ultrasound guidance	25	24	$335.00	$76.07
49505 Repair of groin hernia (5 years or older)	18	18	$1500.00	$573.10
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	18	17	$112.50	$50.86
10006 Fine needle aspiration biopsy using ultrasound guidance, each additional growth	14	12	$165.00	$52.85
19083 Biopsy of breast and placement of locating device using ultrasound, first growth	14	14	$1650.00	$151.85
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	12	12	$2800.00	$356.18

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	160	141	$160.00	$72.90
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	68	68	$350.00	$161.80
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	54	45	$100.00	$38.45
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	43	43	$240.00	$104.21
10005 Fine needle aspiration of first lesion using ultrasound guidance	20	20	$335.00	$74.03
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	19	19	$250.00	$105.73
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	17	17	$2800.00	$352.06
49505 Repair of groin hernia (5 years or older)	14	14	$1500.00	$523.01

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	167	139	$160.00	$73.78
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	65	65	$351.92	$165.84
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	40	40	$240.00	$108.94
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	34	31	$250.00	$108.09
10005 Fine needle aspiration of first lesion using ultrasound guidance	26	26	$335.00	$77.55
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	25	19	$100.00	$44.48
49505 Repair of groin hernia (5 years or older)	25	25	$1500.00	$557.78
10006 Fine needle aspiration biopsy using ultrasound guidance, each additional growth	24	15	$165.00	$52.74
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	21	21	$2800.00	$364.77

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	146	123	$160.00	$68.13
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	82	82	$350.00	$156.01
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	62	62	$240.00	$102.43
10022 Fine needle aspiration using imaging guidance	48	24	$300.00	$64.74
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	39	37	$250.00	$99.31
49505 Repair of groin hernia (5 years or older)	31	31	$1596.77	$552.22
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	30	18	$100.00	$40.69
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	24	24	$215.00	$30.80
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	15	15	$2560.00	$321.44
49560 Repair of incisional or abdominal hernia	12	12	$2100.00	$693.31
49568 Placement of mesh to repair incisional or abdominal hernia	11	11	$900.00	$267.08

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	170	134	$160.00	$68.99
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	97	97	$350.00	$158.17
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	68	62	$250.00	$101.81
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	54	54	$240.00	$102.94
10022 Fine needle aspiration using imaging guidance	50	27	$300.00	$65.72
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	29	28	$215.00	$31.18
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	27	22	$100.00	$40.94
49505 Repair of groin hernia (5 years or older)	19	19	$1585.53	$559.37
47563 Removal of gallbladder with x-ray study of bile ducts using an endoscope	12	12	$2600.00	$760.52
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	11	11	$2500.00	$351.04

Medical Specialties & State Licenses

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License IL 036082445

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

036082445 (IL)

Hospital & Practice Group Affiliations

Lincoln Surgical Associates, Ltd.

1414 Cross St, Shiloh, IL 622692941

Phone: 6182777400

Practice Associates & Co-Workers

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

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Career & Practice History Timeline

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

8 Historical Events

📍

Updated Practice Location March 20, 2024

Registered at 1414 CROSS STREET, SUITE 330, SHILOH, IL 622692998 (Tel: 6182777400)

📍

Updated Business Mailing Address March 20, 2024

Registered at 1414 CROSS STREET, SUITE 330, SHILOH, IL 622692998 (Tel: 6182777400)

✅

NPI Profile Active May 21, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location May 21, 2012

Registered at 340 W LINCOLN ST, SUITE 500, BELLEVILLE, IL 622201900 (Tel: 6182777400)

📍

Updated Business Mailing Address May 21, 2012

Registered at 340 W LINCOLN ST, SUITE 500, BELLEVILLE, IL 622201900 (Tel: 6182777400)

👤

Provider Name / Credentials Updated May 21, 2012

Recorded as DOUGLAS AACH, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) May 21, 2012

Surgery (License #036082445 in IL)

🟢

Initial NPI Registration & Enumeration May 12, 2006

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1508817040

Entity Type:

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

Enumeration Date: May 12, 2006

Last Update: March 20, 2024

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1414 Cross Street, Suite 330

Shiloh, IL 622692998

Phone: 6182777400

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.