Active NPI 1104876945 Individual Practitioner Male Practitioner

Dr. Patrick James Brennan , MD

Surgery • Neenah, WI

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Patrick Brennan, MD is a certified Surgery practicing in Neenah, WI. With approximately 29 years of clinical experience since graduating from University Of Wisconsin School Of Medicine in 1997, Dr. Brennan delivers high-quality medical care to the local community at 100 THEDA CLARK MEDICAL PLZ.

Dr. Brennan is affiliated with Surgical Associates Of Neenah, S.C. and accepts Medicare assignment.

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

Practice Location & Contact Primary Location

Practice Address

100 Theda Clark Medical Plz
Suite 400

Neenah, WI 549562763

Telephone 9207254527

Fax 9207250991

Associated Practice Facility / Clinic

🏢 Urology Associates Of Wisconsin S.c. Facility NPI 1053345983

Medicare Profile & Education

Medical School

University Of Wisconsin School Of Medicine

Graduation Year

1997

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Neenah, WI

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

29 Yrs +9.2 yrs vs City Avg

City Avg: 19.8 Yrs

State Avg: 25.2 Yrs

Regional Practice Density

11 Specialists

Practicing in Neenah, WI (765 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

86.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Brennan (29 Years) 29 Yrs

Neenah Specialty Average (19.8 Years) 19.8 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
99231 Follow-up hospital inpatient care per day, typically 15 minutes	47	22	$169.00	$45.64
99213 Established patient office or other outpatient visit, typically 15 minutes	42	35	$154.00	$83.23
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	22	22	$258.00	$103.96
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	17	17	$1707.00	$101.24
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	16	15	$121.00	$52.99
99221 Initial hospital inpatient care per day, typically 30 minutes	15	15	$396.00	$75.64
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	12	12	$1977.00	$165.46

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	64	27	$169.00	$46.11
99213 Established patient office or other outpatient visit, typically 15 minutes	31	24	$154.00	$85.03
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	21	21	$258.00	$103.23
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	19	19	$1707.00	$76.91
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	19	19	$1977.00	$160.93
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	19	18	$522.00	$121.63
91010 Study of esophagus to assess movement	16	16	$450.00	$60.73
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	15	15	$1977.00	$167.64
45380 Biopsy of large bowel using an endoscope	12	12	$2196.00	$183.29
99221 Initial hospital inpatient care per day, typically 30 minutes	11	11	$396.00	$76.83
91037 Monitoring and recording of esophageal function through nasal tube with electrode	11	11	$356.00	$46.07

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	36	21	$169.00	$36.03
99213 Established patient office or other outpatient visit, typically 15 minutes	35	33	$154.00	$84.11
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	24	23	$1707.00	$87.98
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	17	17	$258.00	$105.36
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	17	17	$1977.00	$163.99
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	15	15	$1977.00	$171.08
99221 Initial hospital inpatient care per day, typically 30 minutes	14	14	$396.00	$92.79
45378 Diagnostic exam of large bowel using a flexible endoscope	13	13	$1977.00	$172.04
45380 Biopsy of large bowel using an endoscope	12	12	$2196.00	$158.77

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	47	24	$169.00	$35.24
99213 Established patient office or other outpatient visit, typically 15 minutes	28	24	$154.00	$87.48
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	24	24	$1707.00	$103.80
45380 Biopsy of large bowel using an endoscope	20	19	$2196.00	$174.15
99221 Initial hospital inpatient care per day, typically 30 minutes	19	19	$396.00	$91.73
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	18	18	$219.00	$124.32
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	17	17	$258.00	$107.01
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	11	11	$1977.00	$174.85

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	43	19	$169.00	$38.03
99213 Established patient office or other outpatient visit, typically 15 minutes	30	28	$154.00	$72.04
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	23	22	$1707.00	$105.97
99221 Initial hospital inpatient care per day, typically 30 minutes	18	18	$396.00	$97.52
45380 Biopsy of large bowel using an endoscope	13	13	$2196.00	$174.20
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	12	12	$219.00	$104.51

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	30	25	$151.00	$69.01
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	27	27	$1674.00	$100.54
91010 Study of esophagus to assess movement	21	21	$441.00	$65.04
99221 Initial hospital inpatient care per day, typically 30 minutes	16	15	$388.00	$95.98
91037 Monitoring and recording of esophageal function through nasal tube with electrode	15	15	$349.00	$49.39
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	14	13	$215.00	$103.97
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	11	11	$2907.00	$236.14

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	25	25	$1668.88	$103.66
99213 Established patient office or other outpatient visit, typically 15 minutes	24	23	$150.50	$69.85
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	22	20	$119.00	$40.85
99231 Follow-up hospital inpatient care per day, typically 15 minutes	21	12	$165.71	$37.52
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	20	20	$213.40	$103.35
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	13	13	$2898.38	$237.92
45378 Diagnostic exam of large bowel using a flexible endoscope	12	12	$1938.00	$172.00
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	11	11	$1917.55	$178.38
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	11	11	$251.18	$102.62

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	72	16	$160.00	$35.45
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	44	37	$114.00	$40.36
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	37	18	$228.00	$66.97
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	31	28	$1610.00	$108.25
99213 Established patient office or other outpatient visit, typically 15 minutes	22	20	$145.00	$67.95
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	21	21	$207.00	$99.32
99202 New patient office or other outpatient visit, typically 20 minutes	16	16	$186.00	$69.42
45378 Diagnostic exam of large bowel using a flexible endoscope	16	16	$1863.00	$169.14
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	14	14	$2795.00	$228.27
99221 Initial hospital inpatient care per day, typically 30 minutes	11	11	$373.00	$93.09

Medical Specialties & State Licenses

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License WI 44570

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 - Surgical Critical Care

NUCC Taxonomy Code: 2086S0102X

State License WI 44570

A surgeon with expertise in the management of the critically ill and postoperative patient, particularly the trauma victim, who specializes in critical care medicine diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Surgery - Trauma Surgery

NUCC Taxonomy Code: 2086S0127X

State License WI 44570

Trauma surgery is a recognized subspecialty of general surgery. Trauma surgeons are physicians who have completed a five-year general surgery residency and usually continue with a one to two year fellowship in trauma and/or surgical critical care, typically leading to additional board certification in surgical critical care. There is no trauma surgery board certification at this point. To obtain board certification in surgical critical care, a fellowship in surgical critical care or anesthesiology critical care must be completed during or after general surgery residency.

Surgery - Vascular Surgery

NUCC Taxonomy Code: 2086S0129X

State License WI 44570

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

Colon & Rectal Surgery

NUCC Taxonomy Code: 208C00000X

State License WI 44570

A colon and rectal surgeon is trained to diagnose and treat various diseases of the intestinal tract, colon, rectum, anal canal and perianal area by medical and surgical means. This specialist also deals with other organs and tissues (such as the liver, urinary and female reproductive system) involved with primary intestinal disease.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

34211900 (WI)

Hospital & Practice Group Affiliations

Surgical Associates Of Neenah, S.c.

100 Theda Clark Medical Plz, Neenah, WI 549562763

Phone: 9207254527

Practice Associates & Co-Workers

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

14 Associated Practitioners

Dr. Jeffrey Burkett , MD

Surgery

NPI 1124078662

Doctor of Medicine (M.D.)

Marie Dziewit , APNP

Nurse Practitioner - Family

NPI 1144864356

Advanced Practice Nurse Prescriber

Brooke Henschel , APNP

Nurse Practitioner

NPI 1245809714

Advanced Practice Nurse Prescriber

Katie Hogg , FNP-BC

Nurse Practitioner - Family

NPI 1255172656

Family Nurse Practitioner (Board Certified)

Jadi Cort

Nurse Practitioner - Family

NPI 1326921792

Dr. Colby Seegmiller , DO

Surgery

NPI 1336558832

Doctor of Osteopathic Medicine (D.O.)

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active May 08, 2008

NPI status registered as active in NPPES database

📍

Updated Practice Location May 08, 2008

Registered at 100 THEDA CLARK MEDICAL PLZ, SUITE 400, NEENAH, WI 549562763 (Tel: 9207254527)

📍

Updated Business Mailing Address May 08, 2008

Registered at 100 THEDA CLARK MEDICAL PLZ, SUITE 400, NEENAH, WI 549562763 (Tel: 9207254527)

👤

Provider Name / Credentials Updated May 08, 2008

Recorded as PATRICK BRENNAN, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) May 08, 2008

Surgery (License #44570 in WI)

🟢

Initial NPI Registration & Enumeration May 11, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews

No patient reviews submitted yet for Dr. Patrick Brennan. Be the first to share your experience!

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1104876945

Entity Type:

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

Enumeration Date: May 11, 2006

Last Update: May 08, 2008

Sole Proprietor: No

Update or Correct Profile

Mailing Address

100 Theda Clark Medical Plz, Suite 400

Neenah, WI 549562763

Phone: 9207254527

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.