Active NPI 1801814538 Individual Practitioner Male Practitioner

Dr. John C Eagon , MD

Surgery • Saint Louis, MO

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. John Eagon, MD is a certified Surgery practicing in Saint Louis, MO. With approximately 38 years of clinical experience since graduating from Harvard Medical School in 1988, Dr. Eagon delivers high-quality medical care to the local community at 1044 N MASON RD.

Dr. Eagon is affiliated with Washington University and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, bypass operation of stomach using an endoscope, follow-up 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

1044 N Mason Rd
Div Surg Mis, Ste 320

Saint Louis, MO 631416431

Telephone 3144548877

Fax 8779914780

Associated Practice Facility / Clinic

🏢 Washington University Facility NPI 1528005642

Medicare Profile & Education

Medical School

Harvard Medical School

Graduation Year

1988

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Saint Louis, MO

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

38 Yrs +19.7 yrs vs City Avg

City Avg: 18.3 Yrs

State Avg: 26.1 Yrs

Regional Practice Density

246 Specialists

Practicing in Saint Louis, MO (766 Statewide)

Telehealth Adoption Rate

9.8% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

70.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Eagon (38 Years) 38 Yrs

Saint Louis Specialty Average (18.3 Years) 18.3 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	48	38	$167.08	$79.18
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	21	20	$286.90	$123.22
43644 Bypass operation of stomach using an endoscope	13	13	$5900.00	$1673.93

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	40	34	$157.50	$78.21
99231 Follow-up hospital inpatient care per day, typically 15 minutes	28	14	$133.57	$49.26
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	26	26	$261.92	$115.43
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	15	12	$208.00	$78.44
43644 Bypass operation of stomach using an endoscope	11	11	$5900.00	$1726.49

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	44	34	$154.09	$80.88
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	23	21	$235.00	$124.05
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	16	11	$205.00	$67.30
43644 Bypass operation of stomach using an endoscope	15	15	$5900.00	$1756.13

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	36	32	$150.00	$86.31
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	28	28	$235.00	$122.70
43644 Bypass operation of stomach using an endoscope	20	20	$5900.00	$1770.07

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	46	40	$145.00	$71.20
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	24	24	$230.00	$104.90

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	64	53	$145.00	$72.05
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	59	59	$230.00	$105.74
43644 Bypass operation of stomach using an endoscope	36	36	$5300.00	$1707.71
43775 Stomach reduction procedure with partial removal of stomach using an endoscope	17	17	$4500.00	$1161.42
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$375.00	$163.95

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	59	58	$200.00	$102.55
99213 Established patient office or other outpatient visit, typically 15 minutes	43	36	$131.91	$70.73
43644 Bypass operation of stomach using an endoscope	33	33	$5184.85	$1715.42
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	26	26	$234.23	$102.00
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	19	14	$91.26	$42.99
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	15	15	$333.00	$154.86
43775 Stomach reduction procedure with partial removal of stomach using an endoscope	11	11	$4401.82	$1090.59

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	40	36	$117.60	$70.79
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	39	39	$185.38	$98.54
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	32	30	$84.19	$42.05
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	23	23	$215.43	$105.80
43644 Bypass operation of stomach using an endoscope	20	20	$4910.00	$1762.36
43775 Stomach reduction procedure with partial removal of stomach using an endoscope	14	14	$4107.14	$1124.14

Medical Specialties & State Licenses

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License MO 101103

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

208724609 (MO)

Hospital & Practice Group Affiliations

Washington University

660 S Euclid Ave, St Louis, MO 631101624

Phone: 3143627841

Washington University

1 Barnes Jew Hosp Plz, Saint Louis, MO 631101003

Phone: 3142737373

Washington University

12634 Olive Blvd, Saint Louis, MO 631416337

Phone: 3142737373

Washington University

1044 N Mason Rd, Saint Louis, MO 631416310

Phone: 3143622280

Washington University

1 Barnes Jewish Hospital Plz, Saint Louis, MO 631101003

Phone: 3142737373

Practice Associates & Co-Workers

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

20 Associated Practitioners

Dr. Mikhail Attaar , MD

Surgery

NPI 1083144158

Doctor of Medicine (M.D.)

Katherine Henslee , FNP

Nurse Practitioner - Adult Health

NPI 1124282819

Family Nurse Practitioner

Dr. Arnab Majumder , MD

Surgery

NPI 1144514423

Doctor of Medicine (M.D.)

Dr. Shaina Eckhouse , MD

Surgery

NPI 1164683025

Doctor of Medicine (M.D.)

Dr. Colleen Witty , MD, MPH

Surgery

NPI 1184367690

Doctor of Medicine (M.D.), Master of Public Health

Michelle Hedrick , AGNP

Nurse Practitioner - Gerontology

NPI 1194477406

Adult-Gerontology Nurse Practitioner

Career & Practice History Timeline

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

16 Historical Events

📍

Updated Business Mailing Address April 17, 2025

Registered at PO BOX 7412011, CHICAGO, IL 606742011 (Tel: 3144548877)

📍

Updated Practice Location April 25, 2024

Registered at 1044 N MASON RD, DIV SURG MIS, STE 320, SAINT LOUIS, MO 631416431 (Tel: 3144548877)

📍

Updated Business Mailing Address April 25, 2024

Registered at PO BOX 60352, SAINT LOUIS, MO 631600352 (Tel: 3144548877)

📍

Updated Practice Location November 17, 2021

Registered at 1040 N MASON RD, DIV SURG MIS, STE 120, SAINT LOUIS, MO 631416399 (Tel: 3144547224)

📍

Updated Business Mailing Address November 17, 2021

Registered at 660 S EUCLID AVE, MSC 8109-37-920, SAINT LOUIS, MO 631101010 (Tel: 3144548877)

✅

NPI Profile Active January 24, 2018

NPI status registered as active in NPPES database

📍

Updated Practice Location January 24, 2018

Registered at 4921 PARKVIEW PL STE 8C, STE 8C, SAINT LOUIS, MO 631101032 (Tel: 3144548887)

📍

Updated Business Mailing Address January 24, 2018

Registered at 660 S EUCLID AVE, C B 8109, SAINT LOUIS, MO 631101010 (Tel: 3144548887)

👤

Provider Name / Credentials Updated January 24, 2018

Recorded as JOHN EAGON, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 24, 2018

Surgery (License #101103 in MO)

✅

NPI Profile Active November 14, 2016

NPI status registered as active in NPPES database

📍

Updated Practice Location November 14, 2016

Registered at 4921 PARKVIEW PL, STE 8C, SAINT LOUIS, MO 631101032 (Tel: 3144548887)

📍

Updated Business Mailing Address November 14, 2016

Registered at 660 S EUCLID AVE, C B 8109, SAINT LOUIS, MO 631101010 (Tel: 3144548887)

👤

Provider Name / Credentials Updated November 14, 2016

Recorded as JOHN EAGON, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 14, 2016

Surgery (License #101103 in MO)

🟢

Initial NPI Registration & Enumeration July 18, 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: 1801814538

Entity Type:

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

Enumeration Date: July 18, 2006

Last Update: April 17, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 7412011

Chicago, IL 606742011

Phone: 3144548877

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.