Active NPI 1689802977 Individual Practitioner Male Practitioner

Dr. Gregory Corbett Thom , MD

Surgery - Vascular Surgery • Green Bay, WI

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Gregory Thom, MD is a certified Surgery - Vascular Surgery practicing in Green Bay, WI. With approximately 17 years of clinical experience since graduating from Medical College Of Wisconsin in 2009, Dr. Thom delivers high-quality medical care to the local community at 2845 GREENBRIER RD STE 230.

Dr. Thom is affiliated with Baycare Aurora Llc and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, new patient outpatient office visit, moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

2845 Greenbrier Rd Ste 230

Green Bay, WI 543116519

Telephone 9202888250

Fax 9202888257

Associated Practice Facility / Clinic

🏢 Aurora Quick Care, Llc Facility NPI 1609820729

Medicare Profile & Education

Medical School

Medical College Of Wisconsin

Graduation Year

2009

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery - Vascular Surgery in Green Bay, WI

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

17 Yrs +1.2 yrs vs City Avg

City Avg: 15.8 Yrs

State Avg: 23.9 Yrs

Regional Practice Density

6 Specialists

Practicing in Green Bay, WI (92 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

90.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Thom (17 Years) 17 Yrs

Green Bay Specialty Average (15.8 Years) 15.8 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	93	83	$350.00	$82.44
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	37	31	$515.00	$107.33
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	36	36	$755.00	$155.84
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	26	26	$510.00	$103.86
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	22	17	$240.00	$10.99
76937 Ultrasonic guidance for blood vessel access	15	15	$180.00	$12.58
75710 Radiological supervision and interpretation of imaging of artery of one arm or leg	14	13	$1020.00	$73.49
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	12	12	$915.00	$147.11
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	12	12	$620.00	$110.19
36832 Revision of dialysis graft, open procedure	12	11	$8440.00	$448.84
35301 Removal of blood clot and portion of artery of neck	11	11	$10760.00	$955.00

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	101	93	$330.00	$84.13
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	49	49	$720.00	$149.63
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	33	30	$490.00	$100.85
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	22	22	$485.00	$106.49
76937 Ultrasonic guidance for blood vessel access	16	15	$180.00	$10.72
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	14	14	$607.50	$123.90
75710 Radiological supervision and interpretation of imaging of artery of one arm or leg	13	11	$990.00	$58.95
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	13	11	$230.00	$7.95
35301 Removal of blood clot and portion of artery of neck	11	11	$10500.00	$898.69

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	54	53	$313.00	$83.85
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	26	26	$687.00	$153.55
99213 Established patient office or other outpatient visit, typically 15 minutes	24	22	$313.00	$64.43
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	22	20	$465.00	$117.81
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	18	18	$687.00	$126.65
93880 Ultrasound of both sides of head and neck blood flow	17	17	$510.00	$37.10
36821 Relocation of arm vein with connection to arm artery, open procedure	15	13	$7690.00	$536.48
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	15	15	$460.00	$96.84
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	14	14	$460.00	$79.67
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	14	13	$565.00	$128.35
93922 Ultrasound study of arm and leg arteries	12	12	$160.00	$11.36

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	65	56	$295.00	$65.20
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	48	48	$645.00	$131.09
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	38	35	$435.00	$94.02
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	24	24	$430.00	$77.03
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	16	14	$210.00	$12.05
93880 Ultrasound of both sides of head and neck blood flow	15	15	$490.00	$37.55
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	13	12	$535.00	$120.18
93922 Ultrasound study of arm and leg arteries	12	12	$160.00	$11.92
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	12	11	$330.00	$63.42

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	77	72	$281.00	$50.02
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	43	43	$608.00	$124.44
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	36	36	$416.00	$77.16
99202 New patient office or other outpatient visit, typically 20 minutes	27	27	$286.00	$49.09
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	19	13	$315.00	$70.98
93880 Ultrasound of both sides of head and neck blood flow	19	19	$450.00	$39.14
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	17	15	$206.00	$12.09
36821 Relocation of arm vein with connection to arm artery, open procedure	17	17	$7070.00	$626.81
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	12	12	$510.00	$134.12

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	98	88	$265.00	$49.07
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	67	67	$582.00	$124.54
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	51	44	$393.00	$75.09
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	27	16	$307.00	$70.57
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	27	21	$191.00	$24.67
93880 Ultrasound of both sides of head and neck blood flow	22	22	$410.00	$38.97
93922 Ultrasound study of arm and leg arteries	19	19	$190.00	$12.12
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	18	16	$194.00	$12.00
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	17	16	$488.00	$132.39
36821 Relocation of arm vein with connection to arm artery, open procedure	15	15	$6800.00	$620.91
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	15	14	$210.00	$21.86
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	14	14	$721.00	$196.17
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	12	12	$389.00	$73.20
35301 Removal of blood clot and portion of artery of neck	11	11	$8800.00	$1054.21
99202 New patient office or other outpatient visit, typically 20 minutes	11	11	$273.00	$46.76

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	75	60	$252.00	$48.55
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	52	52	$554.00	$121.66
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	44	27	$292.00	$65.94
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	40	40	$370.00	$72.60
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	37	35	$374.00	$73.51
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	37	31	$182.00	$22.99
93880 Ultrasound of both sides of head and neck blood flow	32	32	$390.00	$36.12
76937 Ultrasonic guidance for blood vessel access	31	25	$169.00	$13.74
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	23	21	$183.00	$11.94
36821 Relocation of arm vein with connection to arm artery, open procedure	23	21	$6600.00	$557.12
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	21	20	$465.00	$124.44
93922 Ultrasound study of arm and leg arteries	20	19	$200.00	$11.97
36832 Revision of dialysis graft, open procedure	14	14	$6670.00	$684.48
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	14	14	$200.00	$19.99
36589 Removal of central venous catheter for infusion	12	12	$1260.00	$119.79

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	55	31	$278.00	$68.18
99213 Established patient office or other outpatient visit, typically 15 minutes	55	36	$240.00	$48.90
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	48	48	$528.00	$123.86
93880 Ultrasound of both sides of head and neck blood flow	32	32	$372.00	$38.58
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	30	29	$654.00	$194.44
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	23	22	$356.00	$72.34
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	22	21	$443.00	$125.15
76937 Ultrasonic guidance for blood vessel access	21	18	$164.00	$13.95
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	18	17	$176.00	$11.85
93922 Ultrasound study of arm and leg arteries	18	17	$199.00	$12.03
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	13	13	$352.00	$73.01
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	12	12	$194.00	$19.71

Medical Specialties & State Licenses

CMS Verified: 2025-08-15

Surgery - Vascular Surgery Primary Specialty

NUCC Taxonomy Code: 2086S0129X

State License WI 65518-20

A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.

Surgery

NUCC Taxonomy Code: 208600000X

State License WI 65518-20

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

100059317 (WI)

Hospital & Practice Group Affiliations

Baycare Aurora Llc

2845 Greenbrier Rd, Green Bay, WI 543116519

Phone: 9202888000

Practice Associates & Co-Workers

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

22 Associated Practitioners

Dr. Daniel Budreau , MD

Surgery

NPI 1184038978

Doctor of Medicine (M.D.)

Dr. Anna Pierce , MD

Surgery

NPI 1194010645

Doctor of Medicine (M.D.)

Dr. James Offord , MD

Surgery

NPI 1225140460

Doctor of Medicine (M.D.)

Catherine Leggett , RN

Registered Nurse

NPI 1245242999

Registered Nurse

John Jenkins , PA-C

Physician Assistant

NPI 1245643683

Physician Assistant (Certified)

Dr. Daniel Mckenna , MD

Surgery

NPI 1255389755

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

7 Historical Events

📍

Updated Business Mailing Address August 15, 2025

Registered at PO BOX 735044, CHICAGO, IL 606735044 (Tel: 8003262250)

✅

NPI Profile Active September 01, 2016

NPI status registered as active in NPPES database

📍

Updated Practice Location September 01, 2016

Registered at 2845 GREENBRIER RD STE 230, GREEN BAY, WI 543116519 (Tel: 9202888250)

📍

Updated Business Mailing Address September 01, 2016

Registered at 164 N BROADWAY, GREEN BAY, WI 543032728

👤

Provider Name / Credentials Updated September 01, 2016

Recorded as GREGORY THOM, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) September 01, 2016

Surgery (License #65518-20 in WI)

🟢

Initial NPI Registration & Enumeration June 25, 2009

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: 1689802977

Entity Type:

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

Enumeration Date: June 25, 2009

Last Update: August 15, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 735044

Chicago, IL 606735044

Phone: 8003262250

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.