Active NPI 1174798235 Individual Practitioner Male Practitioner

Dr. John Charles Byrn , MD

Colon & Rectal Surgery • Ann Arbor, MI

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. John Byrn, MD is a certified Colon & Rectal Surgery practicing in Ann Arbor, MI. With approximately 24 years of clinical experience since completing medical education in 2002, Dr. Byrn delivers high-quality medical care to the local community at 1500 E MEDICAL CENTER DR.

Dr. Byrn is affiliated with Regents Of The University Of Michigan and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include new patient outpatient office visit, established patient outpatient office visit, initial hospital care with moderate level of medical decision making, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1500 E Medical Center Dr

Ann Arbor, MI 481095000

Telephone 7349364000

Associated Practice Facility / Clinic

🏢 Regents Of The University Of Michigan Facility NPI 1003878539

Medicare Profile & Education

Medical School

Other

Graduation Year

2002

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Colon & Rectal Surgery in Ann Arbor, MI

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

24 Yrs +2.0 yrs vs City Avg

City Avg: 22.0 Yrs

State Avg: 24.3 Yrs

Regional Practice Density

5 Specialists

Practicing in Ann Arbor, MI (94 Statewide)

Telehealth Adoption Rate

100.0% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

54.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Byrn (24 Years) 24 Yrs

Ann Arbor Specialty Average (22.0 Years) 22.0 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
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	39	39	$312.00	$183.87
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	38	31	$213.00	$145.45
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	24	17	$594.50	$173.83
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	21	21	$169.14	$83.53
46600 Diagnostic examination of the anus using an endoscope	15	12	$96.00	$42.42
99213 Established patient office or other outpatient visit, typically 15 minutes	14	13	$151.00	$66.26

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	38	34	$111.21	$66.16
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	33	33	$135.15	$85.56
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	31	31	$312.00	$185.10
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	19	16	$574.16	$176.52
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	15	14	$126.20	$99.05
46600 Diagnostic examination of the anus using an endoscope	15	12	$96.00	$43.10

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	41	40	$83.00	$68.79
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	34	34	$312.00	$190.63
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	17	17	$224.00	$139.92
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	16	15	$57.63	$37.85
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	15	15	$120.00	$87.04
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	13	13	$121.85	$100.35
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	13	11	$543.46	$202.26

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	45	45	$312.00	$193.24
99213 Established patient office or other outpatient visit, typically 15 minutes	34	30	$93.38	$68.97
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	23	23	$224.00	$142.35
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	20	17	$172.00	$152.38
45330 Diagnostic exam of lower portion of large bowel using a flexible endoscope	16	12	$272.00	$53.32
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	15	14	$50.00	$37.34
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	15	15	$128.13	$87.63
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	12	12	$58.00	$6.01
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	12	12	$120.00	$103.44

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	45	45	$224.00	$138.18
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	28	26	$119.54	$83.41
99213 Established patient office or other outpatient visit, typically 15 minutes	19	18	$81.53	$54.68
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	14	14	$58.00	$6.30
99213 Established patient office or other outpatient visit, typically 15 minutes	13	13	$126.77	$56.23

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	55	55	$217.38	$135.57
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	41	38	$108.22	$81.97
99213 Established patient office or other outpatient visit, typically 15 minutes	26	22	$65.31	$53.33
45330 Diagnostic exam of lower portion of large bowel using a flexible endoscope	15	13	$272.00	$57.17
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	12	12	$58.00	$6.23
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	11	11	$329.00	$143.42

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	58	58	$207.93	$134.81
99213 Established patient office or other outpatient visit, typically 15 minutes	31	24	$57.00	$53.03
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	25	24	$93.00	$80.90
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	$58.00	$6.15
45330 Diagnostic exam of lower portion of large bowel using a flexible endoscope	18	14	$261.50	$54.07
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	13	12	$30.00	$26.41

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	83	83	$206.00	$133.41
99213 Established patient office or other outpatient visit, typically 15 minutes	46	40	$57.00	$52.07
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	16	16	$93.00	$80.16
46600 Diagnostic examination of the anus using an endoscope	14	13	$93.86	$43.19
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	12	12	$89.50	$6.01
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	11	11	$319.55	$140.15
45330 Diagnostic exam of lower portion of large bowel using a flexible endoscope	11	11	$251.00	$51.72

Medical Specialties & State Licenses

CMS Verified: 2020-10-20

Colon & Rectal Surgery Primary Specialty

NUCC Taxonomy Code: 208C00000X

State License MI 4301106798

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.

Surgery

NUCC Taxonomy Code: 208600000X

State License MI 4301106798

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.

Hospital & Practice Group Affiliations

Regents Of The University Of Michigan

1500 E Medical Ctr Dr 3rd Fl Taubma, Ann Arbor, MI 481095000

Phone: 7346477321

Regents Of The University Of Michigan

1500 E Medical Ctr Dr 1st Fl, Ann Arbor, MI 481095000

Phone: 7349364185

Regents Of The University Of Michigan

1500 E Medical Ctr Dr B2 Floor R, Ann Arbor, MI 481090999

Phone: 7349366274

Regents Of The University Of Michigan

1500 E Medical Ctr Dr, Ann Arbor, MI 481090999

Regents Of The University Of Michigan

7500 Challis Rd, Brighton, MI 481169416

Phone: 8102634000

Regents Of The University Of Michigan

1500 E Medical Ctr Dr Level B, Ann Arbor, MI 481090999

Phone: 7346478901

Regents Of The University Of Michigan

1500 E Medical Ctr Dr, Ann Arbor, MI 481095000

Regents Of The University Of Michigan

775 S Main St, Chelsea, MI 481181383

Phone: 7349367175

Regents Of The University Of Michigan

1500 E Medical Ctr 2nd Floor Rec, Ann Arbor, MI 481090999

Phone: 7349365020

Regents Of The University Of Michigan

1500 E Medical Ctr Dr 2nd Lr, Ann Arbor, MI 481090999

Phone: 7347635459

Regents Of The University Of Michigan

1500 E Medical Ctr Dr 1st Flo, Ann Arbor, MI 481090999

Regents Of The University Of Michigan

1500 E Medical Ctr Dr 1st Fl Rec F, Ann Arbor, MI 481095000

Phone: 7347645176

Regents Of The University Of Michigan

1500 E Medical Ctr Dr 1st Fl Rec D, Ann Arbor, MI 481095000

Phone: 7347645175

Regents Of The University Of Michigan

1500 E Medical Ctr, Ann Arbor, MI 481090999

Phone: 7349365738

Regents Of The University Of Michigan

1500 E Medical Ctr Dr 1st Floor, Ann Arbor, MI 481090999

Practice Associates & Co-Workers

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

40 Associated Practitioners

Dr. Sameer Saini , MD

Internal Medicine - Gastroenterology

NPI 1003039124

Doctor of Medicine (M.D.)

Dr. Kyle Perry , MD

Pathology - Cytopathology

NPI 1003053901

Doctor of Medicine (M.D.)

Dr. Michael Watson , MD

Pediatrics - Pediatric Infectious Diseases

NPI 1003092040

Doctor of Medicine (M.D.)

Denise Berry , CRNA

Nurse Anesthetist, Certified Registered

NPI 1003128356

Certified Registered Nurse Anesthetist

Dr. Ketti Petersen , MD

Family Medicine - Hospice and Palliative Medicine

NPI 1003128919

Doctor of Medicine (M.D.)

Katherine Mccormack , PA-C

Physician Assistant

NPI 1003167321

Physician Assistant (Certified)

Career & Practice History Timeline

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

10 Historical Events

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) October 20, 2020

Surgery (License #4301106798 in MI)

📍

Updated Practice Location February 17, 2020

Registered at 1500 E MEDICAL CENTER DR, ANN ARBOR, MI 481095000 (Tel: 7349364000)

📍

Updated Business Mailing Address February 17, 2020

Registered at 3621 S STATE ST, ANN ARBOR, MI 481081633 (Tel: 7346475299)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) February 17, 2020

Surgery (License #232296 in NY)

✅

NPI Profile Active July 02, 2015

NPI status registered as active in NPPES database

📍

Updated Practice Location July 02, 2015

Registered at 1500 E MEDICAL CENTER DRIVE, 2ND FLOOR TAUBMAN CENTER RECP F, ANN ARBOR, MI 481095332 (Tel: 7349365738)

📍

Updated Business Mailing Address July 02, 2015

Registered at 3621 S STATE ST, 700 KMS PLACE, ANN ARBOR, MI 48108 (Tel: 7349362047)

👤

Provider Name / Credentials Updated July 02, 2015

Recorded as JOHN BYRN, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 02, 2015

Surgery (License #4301106798 in MI)

🟢

Initial NPI Registration & Enumeration April 29, 2008

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: 1174798235

Entity Type:

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

Enumeration Date: April 29, 2008

Last Update: October 20, 2020

Sole Proprietor: No

Update or Correct Profile

Mailing Address

3621 S State St

Ann Arbor, MI 481081633

Phone: 7346475299

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.