Active NPI 1588716237 Individual Practitioner Male Practitioner

Dr. Jon Paul Walker , MD

Internal Medicine - Gastroenterology • Dublin, OH

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Jon Walker, MD is a certified Internal Medicine - Gastroenterology practicing in Dublin, OH. With approximately 25 years of clinical experience since graduating from University Of Cincinnati College Of Medicine in 2001, Dr. Walker delivers high-quality medical care to the local community at 6670 PERIMETER DR STE 200.

Dr. Walker maintains professional affiliations with Ohiohealth Corporation, Union County Physician Corporation, Ohio Gastroenterology Group, Inc. and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include biopsy of large bowel using an endoscope, biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, removal of polyps or growths of large bowel using an endoscope with mechanical snare. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

6670 Perimeter Dr Ste 200

Dublin, OH 430168065

Telephone 6147545500

Fax 6147545501

Associated Practice Facility / Clinic

🏢 Ohio Gastroenterology Group, Inc. Facility NPI 1124197637

Medicare Profile & Education

Medical School

University Of Cincinnati College Of Medicine

Graduation Year

2001

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine - Gastroenterology in Dublin, OH

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

25 Yrs +4.2 yrs vs City Avg

City Avg: 20.8 Yrs

State Avg: 27.4 Yrs

Regional Practice Density

17 Specialists

Practicing in Dublin, OH (766 Statewide)

Telehealth Adoption Rate

35.3% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

78.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Walker (25 Years) 25 Yrs

Dublin Specialty Average (20.8 Years) 20.8 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
45380 Biopsy of large bowel using an endoscope	145	145	$1134.61	$110.95
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	119	119	$829.43	$91.82
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	117	117	$1233.19	$233.65
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	97	76	$247.00	$118.24
99213 Established patient office or other outpatient visit, typically 15 minutes	85	75	$162.00	$85.21
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	46	45	$685.85	$103.23
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	33	33	$331.00	$123.16
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	28	28	$378.00	$150.16
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	27	27	$942.81	$163.77
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	23	17	$185.00	$73.83
99213 Established patient office or other outpatient visit, typically 15 minutes	18	16	$188.00	$56.97
45378 Diagnostic exam of large bowel using a flexible endoscope	16	16	$897.25	$161.48
43237 Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth	15	15	$624.00	$176.25
43249 Balloon dilation of esophagus using an endoscope	15	14	$686.00	$116.43
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	13	13	$347.00	$125.61

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45380 Biopsy of large bowel using an endoscope	124	124	$1141.24	$125.45
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	91	88	$823.31	$89.84
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	87	86	$1251.85	$238.57
99213 Established patient office or other outpatient visit, typically 15 minutes	83	69	$162.00	$85.96
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	69	63	$247.00	$119.09
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	47	46	$698.30	$108.37
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	33	33	$378.00	$159.28
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	21	21	$30.00	$5.26
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	19	19	$331.00	$125.81
45378 Diagnostic exam of large bowel using a flexible endoscope	19	19	$916.42	$162.82
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	18	18	$856.39	$176.53
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	16	11	$185.00	$76.43
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	16	16	$962.00	$164.80
43249 Balloon dilation of esophagus using an endoscope	15	13	$1156.00	$142.22
43237 Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth	15	14	$624.00	$178.96
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	13	13	$351.00	$129.49

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45380 Biopsy of large bowel using an endoscope	128	128	$1158.10	$123.80
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	96	96	$837.16	$92.10
99213 Established patient office or other outpatient visit, typically 15 minutes	89	81	$161.86	$86.59
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	87	72	$246.64	$122.50
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	85	85	$1256.09	$247.35
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	53	53	$30.00	$5.35
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	47	47	$377.66	$162.26
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	45	45	$709.67	$102.99
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	34	21	$184.85	$69.27
45378 Diagnostic exam of large bowel using a flexible endoscope	31	31	$886.99	$164.36
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	24	24	$961.92	$180.60
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	23	23	$330.95	$131.31
43237 Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth	18	18	$623.60	$181.54
43249 Balloon dilation of esophagus using an endoscope	15	12	$822.80	$135.44
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	12	12	$246.68	$108.67
99441 Telephone medical discussion with physician, 5-10 minutes	11	11	$100.47	$36.57

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45380 Biopsy of large bowel using an endoscope	115	115	$1185.39	$142.48
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	109	95	$246.24	$124.98
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	80	79	$836.14	$95.99
99213 Established patient office or other outpatient visit, typically 15 minutes	76	67	$161.59	$88.27
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	73	73	$30.00	$5.55
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	66	65	$1274.02	$253.61
88305 Pathology examination of tissue using a microscope, intermediate complexity	60	38	$169.28	$31.06
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	53	53	$721.26	$111.74
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	42	42	$377.05	$162.33
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	39	39	$330.88	$133.96
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	33	25	$184.68	$70.72
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	30	30	$53.87	$21.74
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus	30	30	$130.03	$35.33
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	27	27	$961.85	$181.90
43249 Balloon dilation of esophagus using an endoscope	25	23	$528.88	$136.91
43237 Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth	21	21	$623.28	$184.39
43238 Ultrasound guided needle aspiration or biopsy of esophagus using a flexible endoscope	19	19	$769.48	$231.66
45378 Diagnostic exam of large bowel using a flexible endoscope	19	19	$948.65	$176.67
99442 Telephone medical discussion with physician, 11-20 minutes	16	12	$161.59	$89.66
88312 Special stained specimen slides to identify organisms including interpretation and report	15	12	$184.68	$79.03
88313 Special stained specimen slides to examine tissue including interpretation and report	15	12	$153.89	$63.69
43246 Insertion of stomach tube using a flexible endoscope	11	11	$646.36	$119.53

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	204	89	$151.96	$29.63
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	95	79	$227.31	$106.00
45380 Biopsy of large bowel using an endoscope	93	93	$1078.94	$142.85
99213 Established patient office or other outpatient visit, typically 15 minutes	79	65	$148.78	$72.89
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	75	75	$768.71	$103.84
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	68	68	$669.21	$117.35
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	63	63	$18.10	$5.72
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	60	60	$301.62	$136.86
88313 Special stained specimen slides to examine tissue including interpretation and report	57	31	$138.75	$59.62
88312 Special stained specimen slides to identify organisms including interpretation and report	55	32	$167.60	$73.31
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	45	45	$1160.95	$257.84
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	42	25	$166.33	$72.78
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	29	29	$227.41	$105.66
45378 Diagnostic exam of large bowel using a flexible endoscope	25	24	$886.57	$179.03
43237 Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth	23	23	$570.26	$195.57
43246 Insertion of stomach tube using a flexible endoscope	17	17	$596.77	$138.09
43238 Ultrasound guided needle aspiration or biopsy of esophagus using a flexible endoscope	15	15	$702.57	$238.54
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	12	12	$340.17	$162.93
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	11	11	$904.82	$190.73

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	102	97	$551.36	$95.68
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	84	84	$299.80	$135.20
88305 Pathology examination of tissue using a microscope, intermediate complexity	84	39	$147.20	$27.94
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	84	71	$233.98	$99.78
45380 Biopsy of large bowel using an endoscope	73	73	$856.11	$127.27
99213 Established patient office or other outpatient visit, typically 15 minutes	63	55	$155.11	$67.21
43237 Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth	54	54	$635.96	$187.47
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	50	50	$1004.26	$248.88
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	50	48	$15.10	$5.62
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	43	43	$549.35	$107.28
43238 Ultrasound guided needle aspiration or biopsy of esophagus using a flexible endoscope	20	20	$773.41	$219.74
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	20	20	$214.12	$104.83
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	18	16	$163.79	$71.77
43270 Destruction of polyp or growth of esophagus, stomach, and/or upper small bowel using a flexible endoscope	17	13	$731.99	$229.45
88313 Special stained specimen slides to examine tissue including interpretation and report	16	11	$133.82	$52.37
88312 Special stained specimen slides to identify organisms including interpretation and report	13	11	$160.59	$62.48
45378 Diagnostic exam of large bowel using a flexible endoscope	12	12	$801.16	$161.25
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$344.16	$145.26

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	140	121	$470.00	$95.58
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	121	93	$242.02	$100.16
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	82	82	$332.20	$132.22
43237 Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth	71	65	$665.00	$172.64
45380 Biopsy of large bowel using an endoscope	62	62	$680.00	$153.37
99213 Established patient office or other outpatient visit, typically 15 minutes	33	29	$160.91	$66.68
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	32	31	$870.41	$244.91
43238 Ultrasound guided needle aspiration or biopsy of esophagus using a flexible endoscope	30	30	$790.00	$228.34
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	29	29	$420.00	$114.76
43270 Destruction of polyp or growth of esophagus, stomach, and/or upper small bowel using a flexible endoscope	27	19	$760.00	$218.78
43254 Removal of tissue lining of esophagus, stomach, and/or upper small bowel using an endoscope	17	13	$915.00	$274.98
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	16	16	$180.00	$68.40
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	15	15	$364.33	$154.80
45378 Diagnostic exam of large bowel using a flexible endoscope	11	11	$630.00	$145.09
45381 Injection beneath lining of large bowel using a flexible endoscope	11	11	$680.00	$33.25

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	154	118	$470.00	$94.67
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	117	92	$230.00	$100.87
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	92	90	$330.00	$133.62
43237 Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth	80	75	$665.00	$179.26
45380 Biopsy of large bowel using an endoscope	59	57	$680.00	$104.20
99213 Established patient office or other outpatient visit, typically 15 minutes	54	50	$155.00	$69.17
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	42	40	$865.00	$239.65
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	38	38	$422.21	$107.61
43270 Destruction of polyp or growth of esophagus, stomach, and/or upper small bowel using a flexible endoscope	34	20	$765.00	$220.09
43238 Ultrasound guided needle aspiration or biopsy of esophagus using a flexible endoscope	30	30	$790.00	$227.83
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	20	16	$175.00	$70.47
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	18	18	$355.00	$158.06
43249 Balloon dilation of esophagus using an endoscope	14	12	$520.00	$144.20
45381 Injection beneath lining of large bowel using a flexible endoscope	13	13	$680.00	$15.77
43254 Removal of tissue lining of esophagus, stomach, and/or upper small bowel using an endoscope	13	12	$920.00	$274.41

Medical Specialties & State Licenses

CMS Verified: 2020-02-12

Internal Medicine - Gastroenterology Primary Specialty

NUCC Taxonomy Code: 207RG0100X

State License OH 35.084373

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

2760927 (OH)

Hospital & Practice Group Affiliations

Ohio Gastroenterology Group, Inc.

6670 Perimeter Dr, Dublin, OH 430168056

Phone: 6147545500

Ohiohealth Corporation

3595 Olentangy River Rd, Columbus, OH 432143440

Phone: 6145665456

Union County Physician Corporation

500 London Ave, Marysville, OH 430405512

Phone: 9375782275

Secondary Practice Locations

3400 Olentangy River Rd

Columbus, OH 432021523

Phone: 6147545500

3595 Olentangy River Rd

Columbus, OH 432143440

Phone: 6145665456

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 July 24, 2019

Registered at 6670 PERIMETER DR STE 200, DUBLIN, OH 430168065 (Tel: 6147545500)

📍

Updated Business Mailing Address June 04, 2019

Registered at 3400 OLENTANGY RIVER RD, COLUMBUS, OH 432021523 (Tel: 6149473700)

✅

NPI Profile Active July 05, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location July 05, 2012

Registered at 410 W 10TH AVE, COLUMBUS, OH 432101240 (Tel: 6142936255)

📍

Updated Business Mailing Address July 05, 2012

Registered at 700 ACKERMAN RD, SUITE 385, COLUMBUS, OH 432021559 (Tel: 6149473700)

👤

Provider Name / Credentials Updated July 05, 2012

Recorded as JON WALKER, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 05, 2012

Internal Medicine (License #35.084373 in OH)

🟢

Initial NPI Registration & Enumeration January 16, 2007

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1588716237

Entity Type:

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

Enumeration Date: January 16, 2007

Last Update: February 12, 2020

Sole Proprietor: No

Update or Correct Profile

Mailing Address

3400 Olentangy River Rd

Columbus, OH 432021523

Phone: 6147545500

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

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