Active NPI 1578635090 Individual Practitioner Male Practitioner

Dr. Mark J Corso , MD

Specialist • Newark, DE

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Mark Corso, MD is a certified Specialist practicing in Newark, DE. With approximately 29 years of clinical experience since graduating from Hahnemann University College Of Medicine in 1997, Dr. Corso delivers high-quality medical care to the local community at 4745 OGLETOWN STANTON RD.

Dr. Corso maintains professional affiliations with Delaware Center For Digestive Care Llc, Christiana Care Health Services Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include injection, vedolizumab, intravenous, 1 mg, removal of polyps or growths of large bowel using an endoscope with mechanical snare, biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

4745 Ogletown Stanton Rd

Newark, DE 197132067

Telephone 3027385300

Fax 3027314822

Associated Practice Facility / Clinic

🏢 Gastroenterology Associates, Pa Facility NPI 1902804982

Medicare Profile & Education

Medical School

Hahnemann University College Of Medicine

Graduation Year

1997

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Specialist in Newark, DE

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

29 Yrs -7.0 yrs vs City Avg

City Avg: 36.0 Yrs

State Avg: 33.9 Yrs

Regional Practice Density

44 Specialists

Practicing in Newark, DE (148 Statewide)

Telehealth Adoption Rate

6.8% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

73.2% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Corso (29 Years) 29 Yrs

Newark Specialty Average (36.0 Years) 36.0 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
J3380 Injection, vedolizumab, intravenous, 1 mg	4,800	13	$60.00	$22.27
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	229	226	$946.92	$243.34
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	208	204	$353.27	$84.97
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	140	138	$435.02	$126.69
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	140	125	$325.71	$125.05
45380 Biopsy of large bowel using an endoscope	115	115	$511.49	$107.92
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	72	72	$460.00	$174.60
99213 Established patient office or other outpatient visit, typically 15 minutes	63	58	$230.00	$89.19
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	37	37	$465.00	$174.64
74328 Radiological supervision and interpretation of insertion of catheter into biliary duct using an endoscope	29	28	$93.05	$22.30
43262 Incision of pancreatic outlet using a flexible endoscope	27	27	$1011.43	$136.34
43264 Removal of stone from bile or pancreatic duct using an endoscope	25	24	$1030.77	$237.68
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	25	25	$425.00	$163.99
43249 Balloon dilation of esophagus using an endoscope	23	21	$392.63	$128.56
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	22	22	$285.00	$109.41
96365 Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less	17	14	$325.00	$61.15
45381 Injection beneath lining of large bowel using a flexible endoscope	15	14	$520.50	$15.04
43273 Exam of common bile and/or pancreatic duct using a flexible endoscope	14	13	$339.56	$114.61
45378 Diagnostic exam of large bowel using a flexible endoscope	13	13	$514.29	$170.56
43255 Control of bleeding of esophagus, stomach, and/or upper small bowel using a flexible endoscope	12	12	$551.75	$176.76

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	225	225	$1006.98	$247.73
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	219	211	$590.95	$92.27
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	174	154	$211.03	$126.12
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	116	113	$424.62	$129.74
45380 Biopsy of large bowel using an endoscope	103	103	$859.80	$103.81
99213 Established patient office or other outpatient visit, typically 15 minutes	64	61	$156.27	$88.34
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	53	53	$699.00	$178.59
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	27	27	$302.81	$165.84
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	25	25	$696.66	$169.77
43251 Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare	23	23	$435.16	$155.70
43249 Balloon dilation of esophagus using an endoscope	21	15	$398.60	$122.78
43264 Removal of stone from bile or pancreatic duct using an endoscope	20	19	$1001.60	$153.22
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	19	19	$228.04	$111.49
43274 Insertion of stent into pancreatic or bile duct using a flexible endoscope	16	16	$1254.05	$438.67
45378 Diagnostic exam of large bowel using a flexible endoscope	12	12	$730.03	$181.03
43262 Incision of pancreatic outlet using a flexible endoscope	11	11	$975.00	$179.89

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	249	213	$188.24	$127.43
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	217	205	$621.99	$102.38
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	196	194	$1013.71	$252.30
45380 Biopsy of large bowel using an endoscope	126	126	$897.49	$107.41
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	100	98	$357.25	$136.56
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	50	50	$287.54	$168.20
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	47	47	$754.58	$185.95
99213 Established patient office or other outpatient visit, typically 15 minutes	35	32	$125.14	$81.46
43264 Removal of stone from bile or pancreatic duct using an endoscope	26	26	$953.13	$245.52
43262 Incision of pancreatic outlet using a flexible endoscope	20	20	$932.52	$102.09
45378 Diagnostic exam of large bowel using a flexible endoscope	19	18	$683.33	$179.43
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	18	18	$186.62	$102.23
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	18	18	$754.58	$185.67
43249 Balloon dilation of esophagus using an endoscope	15	12	$399.20	$142.51
43274 Insertion of stent into pancreatic or bile duct using a flexible endoscope	13	11	$1197.79	$446.36
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	11	11	$416.23	$107.57

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	253	222	$188.24	$131.91
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	209	207	$1015.99	$257.63
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	190	181	$631.79	$101.70
45380 Biopsy of large bowel using an endoscope	145	145	$905.23	$111.53
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	93	92	$338.58	$138.50
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	71	71	$287.54	$171.98
99213 Established patient office or other outpatient visit, typically 15 minutes	60	55	$125.14	$92.45
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	50	50	$754.58	$190.19
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	33	33	$186.62	$108.84
43264 Removal of stone from bile or pancreatic duct using an endoscope	25	22	$949.62	$229.31
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	23	23	$754.58	$190.51
43255 Control of bleeding of esophagus, stomach, and/or upper small bowel using a flexible endoscope	18	16	$536.39	$200.69
43249 Balloon dilation of esophagus using an endoscope	17	14	$399.85	$145.40
43262 Incision of pancreatic outlet using a flexible endoscope	15	15	$931.38	$80.24
43274 Insertion of stent into pancreatic or bile duct using a flexible endoscope	14	13	$1189.02	$454.31
45331 Biopsy of lower large bowel using a flexible endoscope	13	13	$272.53	$50.86
45378 Diagnostic exam of large bowel using a flexible endoscope	11	11	$713.56	$171.21

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	195	169	$188.24	$109.46
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	153	150	$660.30	$102.77
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	128	128	$1038.88	$266.28
99213 Established patient office or other outpatient visit, typically 15 minutes	125	120	$125.14	$60.71
45380 Biopsy of large bowel using an endoscope	96	96	$933.62	$118.89
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	57	57	$338.58	$142.92
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	47	47	$186.62	$92.67
43264 Removal of stone from bile or pancreatic duct using an endoscope	40	38	$949.62	$283.62
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	35	35	$754.58	$194.62
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	32	31	$75.78	$27.56
43262 Incision of pancreatic outlet using a flexible endoscope	24	24	$931.38	$65.16
45378 Diagnostic exam of large bowel using a flexible endoscope	21	21	$759.83	$191.96
G2010 Remote evaluation of recorded video and/or images submitted by an established patient (e.g., store and forward), including interpretation with follow-up with the patient within 24 business hours, not originating from a related e/m service provided within t	15	15	$30.00	$9.46
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	14	14	$287.54	$162.84
43274 Insertion of stent into pancreatic or bile duct using a flexible endoscope	13	13	$1189.02	$465.93
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	11	11	$754.58	$197.91

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	301	249	$188.24	$111.36
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	191	185	$652.12	$97.83
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	184	183	$1027.81	$270.57
45380 Biopsy of large bowel using an endoscope	147	147	$910.49	$122.92
99213 Established patient office or other outpatient visit, typically 15 minutes	137	128	$125.14	$76.50
45378 Diagnostic exam of large bowel using a flexible endoscope	70	70	$768.24	$194.41
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	63	63	$340.61	$140.75
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	57	57	$186.62	$111.77
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	49	49	$287.54	$169.53
43264 Removal of stone from bile or pancreatic duct using an endoscope	36	34	$949.62	$236.26
43262 Incision of pancreatic outlet using a flexible endoscope	22	21	$931.38	$131.17
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	19	19	$754.58	$198.61
43274 Insertion of stent into pancreatic or bile duct using a flexible endoscope	19	18	$1189.02	$477.82
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	18	17	$79.35	$46.53
43251 Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare	16	16	$462.56	$177.72
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope	14	12	$551.75	$117.29
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	12	12	$754.58	$198.20

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	228	186	$188.24	$109.64
99213 Established patient office or other outpatient visit, typically 15 minutes	204	181	$125.14	$74.18
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	197	193	$634.09	$99.19
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	186	186	$1017.59	$266.68
45380 Biopsy of large bowel using an endoscope	132	132	$901.90	$106.76
45378 Diagnostic exam of large bowel using a flexible endoscope	71	70	$754.58	$184.87
99221 Initial hospital inpatient care per day, typically 30 minutes	57	57	$277.22	$103.46
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	52	52	$287.54	$165.30
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	49	49	$187.97	$110.30
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	48	46	$305.92	$139.40
43264 Removal of stone from bile or pancreatic duct using an endoscope	33	30	$1003.80	$289.09
99231 Follow-up hospital inpatient care per day, typically 15 minutes	28	25	$89.09	$38.93
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	25	25	$754.58	$191.92
43249 Balloon dilation of esophagus using an endoscope	19	15	$339.20	$149.77
43255 Control of bleeding of esophagus, stomach, and/or upper small bowel using a flexible endoscope	17	17	$532.89	$207.17
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	17	17	$75.78	$44.73
43262 Incision of pancreatic outlet using a flexible endoscope	11	11	$836.24	$129.90

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	345	262	$188.24	$108.61
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	198	198	$1016.40	$262.07
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	189	180	$629.70	$102.57
45380 Biopsy of large bowel using an endoscope	165	165	$901.07	$108.44
99213 Established patient office or other outpatient visit, typically 15 minutes	159	142	$125.14	$74.37
99221 Initial hospital inpatient care per day, typically 30 minutes	63	62	$279.30	$103.38
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	54	54	$186.62	$110.31
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	48	47	$312.00	$139.33
45378 Diagnostic exam of large bowel using a flexible endoscope	47	46	$749.78	$187.20
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	46	46	$287.54	$167.08
99231 Follow-up hospital inpatient care per day, typically 15 minutes	34	27	$85.99	$39.98
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	31	30	$754.58	$178.31
43264 Removal of stone from bile or pancreatic duct using an endoscope	30	27	$1003.80	$283.82
43262 Incision of pancreatic outlet using a flexible endoscope	30	30	$836.24	$82.83
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	17	13	$155.04	$73.35
43261 Biopsy of gallbladder, pancreatic, liver, and bile ducts using a flexible endoscope	15	12	$712.16	$17.33
43274 Insertion of stent into pancreatic or bile duct using a flexible endoscope	15	13	$1004.90	$491.66
45381 Injection beneath lining of large bowel using a flexible endoscope	12	12	$882.34	$16.49

Medical Specialties & State Licenses

Specialist Primary Specialty

NUCC Taxonomy Code: 174400000X

State License DE C1-0006956

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

10000232980 (DE)

Hospital & Practice Group Affiliations

Christiana Care Health Services Inc

4755 Ogletown Stanton Rd, Newark, DE 197182200

Phone: 3027331000

Delaware Center For Digestive Care Llc

4745 Ogletown Stanton Rd, Newark, DE 197132074

Phone: 3027385300

Practice Associates & Co-Workers

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

17 Associated Practitioners

Dr. Bernard Haimowitz , MD

Specialist

NPI 1043382443

Doctor of Medicine (M.D.)

Dr. David Beswick , MD

Specialist

NPI 1124190095

Doctor of Medicine (M.D.)

Dr. Ira Lobis , MD, FACP, FACG

Specialist

NPI 1144390857

Doctor of Medicine (M.D.), FACP, FACG

Dr. Ashesh Modi , MD

Specialist

NPI 1174674816

Doctor of Medicine (M.D.)

Dr. Nathan Merriman , MD

Specialist

NPI 1174686042

Doctor of Medicine (M.D.)

Sarah Shaw , FNP-C

Nurse Practitioner - Family

NPI 1407776545

Family Nurse Practitioner (Certified)

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location July 08, 2007

Registered at 4745 OGLETOWN STANTON RD, NEWARK, DE 197132067 (Tel: 3027385300)

📍

Updated Business Mailing Address July 08, 2007

Registered at 37 ROCKFORD RD, WILMINGTON, DE 198061003 (Tel: 3027385300)

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as MARK CORSO, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Specialist (License #C1-0006956 in DE)

🟢

Initial NPI Registration & Enumeration November 14, 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: 1578635090

Entity Type:

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

Enumeration Date: November 14, 2006

Last Update: July 08, 2007

Sole Proprietor: No

Update or Correct Profile

Mailing Address

37 Rockford Rd

Wilmington, DE 198061003

Phone: 3027385300

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.