Active NPI 1518983147 Individual Practitioner Male Practitioner

Dr. Daniel Marelli , MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) • Dover, DE

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Daniel Marelli, MD is a certified Thoracic Surgery (Cardiothoracic Vascular Surgery) practicing in Dover, DE. With approximately 40 years of clinical experience since completing medical education in 1986, Dr. Marelli delivers high-quality medical care to the local community at 540 S GOVERNORS AVE STE 101A.

Dr. Marelli is affiliated with Bayhealth Medical Center, Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include initial hospital care with straightforward or low-level medical decision making, if using time, at least, established patient outpatient office visit, subsequent hospital care with moderate levelof 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

540 S Governors Ave Ste 101a

Dover, DE 199043530

Telephone 3027447980

Fax 3027447989

Associated Practice Facility / Clinic

🏢 Bayhealth Medical Center, Inc Facility NPI 1720545536

Medicare Profile & Education

Medical School

Other

Graduation Year

1986

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Thoracic Surgery (Cardiothoracic Vascular Surgery) in Dover, DE

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

40 Yrs +2.7 yrs vs City Avg

City Avg: 37.3 Yrs

State Avg: 30.7 Yrs

Regional Practice Density

4 Specialists

Practicing in Dover, DE (30 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

83.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Marelli (40 Years) 40 Yrs

Dover Specialty Average (37.3 Years) 37.3 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
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	47	46	$587.28	$126.91
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	31	23	$455.81	$94.57
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	29	26	$701.24	$140.09
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	26	17	$263.50	$76.50
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	23	23	$796.96	$125.53
33508 Harvest of veins for coronary artery bypass procedure using an endoscope	18	18	$66.33	$11.03
33533 Coronary artery bypass using artery graft, 1 graft	18	18	$8598.11	$1283.99
99231 Follow-up hospital inpatient care per day, typically 15 minutes	15	14	$147.73	$48.04
99221 Initial hospital inpatient care per day, typically 30 minutes	14	14	$352.71	$80.49
33361 Replacement of aortic valve through the skin and femoral artery	12	12	$4529.33	$718.65

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99221 Initial hospital inpatient care per day, typically 30 minutes	38	38	$343.00	$81.20
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	36	22	$257.00	$79.43
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	33	32	$570.00	$130.66
99213 Established patient office or other outpatient visit, typically 15 minutes	32	28	$301.00	$66.21
99231 Follow-up hospital inpatient care per day, typically 15 minutes	31	23	$144.00	$49.85
33533 Coronary artery bypass using artery graft, 1 graft	30	30	$8434.00	$911.15
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	24	20	$448.00	$97.79
33508 Harvest of veins for coronary artery bypass procedure using an endoscope	23	23	$69.57	$11.79
33517 Combined vein and artery heart artery bypass	21	21	$796.00	$139.64
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	20	18	$686.00	$143.66
33361 Replacement of aortic valve through the skin and femoral artery	16	16	$4640.63	$721.14
33405 Replacement of aortic valve on heart-lung machine	14	14	$9713.00	$1452.25

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	58	52	$301.00	$68.21
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	36	30	$448.00	$100.17
33533 Coronary artery bypass using artery graft, 1 graft	31	31	$8434.00	$1176.22
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	24	24	$780.00	$138.37
33517 Combined vein and artery heart artery bypass	18	18	$836.00	$146.13
99221 Initial hospital inpatient care per day, typically 30 minutes	16	15	$343.00	$101.58
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	14	14	$686.00	$148.54

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	117	93	$294.64	$68.58
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	37	37	$766.22	$139.84
99221 Initial hospital inpatient care per day, typically 30 minutes	29	29	$334.93	$102.82
33533 Coronary artery bypass using artery graft, 1 graft	26	25	$8234.62	$1318.58
33361 Replacement of aortic valve through the skin and femoral artery	22	22	$4855.00	$778.31
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	21	21	$553.24	$138.52
99238 Hospital discharge day management, 30 minutes or less	20	20	$248.50	$73.66
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	19	15	$439.05	$102.35
99231 Follow-up hospital inpatient care per day, typically 15 minutes	18	12	$140.33	$39.06
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	16	16	$671.38	$150.67
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	15	13	$253.67	$73.20
33517 Combined vein and artery heart artery bypass	14	13	$817.71	$134.55

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	149	123	$283.08	$52.71
99221 Initial hospital inpatient care per day, typically 30 minutes	41	41	$324.15	$106.09
33533 Coronary artery bypass using artery graft, 1 graft	37	36	$7932.65	$1193.69
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	37	37	$729.57	$131.54
33508 Harvest of veins for coronary artery bypass procedure using an endoscope	35	34	$67.71	$10.85
99231 Follow-up hospital inpatient care per day, typically 15 minutes	29	18	$136.55	$40.92
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	27	24	$420.89	$82.07
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	23	23	$537.83	$143.15
33517 Combined vein and artery heart artery bypass	19	18	$786.00	$119.83
34705 Repair of non-ruptured aorta and groin arteries on both sides with graft inserted through artery, including radiological supervision and interpretation	14	14	$5402.00	$1639.58
99441 Telephone medical discussion with physician, 5-10 minutes	14	13	$196.64	$26.95
33518 Coronary artery bypass using vein or artery graft, 2 grafts	11	11	$1725.45	$238.75

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	189	150	$270.33	$52.50
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	48	48	$702.50	$131.07
99221 Initial hospital inpatient care per day, typically 30 minutes	47	45	$308.85	$104.44
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	44	34	$403.32	$79.49
99231 Follow-up hospital inpatient care per day, typically 15 minutes	41	21	$128.66	$40.47
33533 Coronary artery bypass using artery graft, 1 graft	32	32	$7569.03	$1267.68
33508 Harvest of veins for coronary artery bypass procedure using an endoscope	30	30	$64.93	$13.43
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	22	22	$513.82	$140.75
34705 Repair of non-ruptured aorta and groin arteries on both sides with graft inserted through artery, including radiological supervision and interpretation	16	16	$5181.00	$1633.94
33517 Combined vein and artery heart artery bypass	16	16	$751.38	$146.85
34812 Incision of artery in one thigh for insertion of prosthesis, open procedure	11	11	$2383.18	$301.37

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	182	149	$261.71	$51.79
99231 Follow-up hospital inpatient care per day, typically 15 minutes	59	29	$136.69	$39.96
99221 Initial hospital inpatient care per day, typically 30 minutes	50	47	$324.60	$103.46
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	41	40	$494.34	$135.92
33533 Coronary artery bypass using artery graft, 1 graft	35	35	$7347.29	$1287.07
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	34	34	$620.12	$132.01
33508 Harvest of veins for coronary artery bypass procedure using an endoscope	32	32	$63.13	$11.62
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	26	23	$390.62	$78.71
33518 Coronary artery bypass using vein or artery graft, 2 grafts	17	17	$1591.12	$240.76
33405 Replacement of aortic valve on heart-lung machine	15	15	$8915.20	$1026.80
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	15	14	$245.67	$74.20
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	14	12	$180.14	$25.93
34705 Repair of non-ruptured aorta and groin arteries on both sides with graft inserted through artery, including radiological supervision and interpretation	13	13	$5007.08	$1609.91
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	13	13	$405.92	$78.45
34812 Incision of artery in one thigh for insertion of prosthesis, open procedure	12	12	$2330.42	$300.96
33517 Combined vein and artery heart artery bypass	12	12	$726.50	$167.08

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	175	140	$249.07	$51.61
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	48	47	$475.92	$139.27
33533 Coronary artery bypass using artery graft, 1 graft	43	43	$6713.38	$1265.52
99231 Follow-up hospital inpatient care per day, typically 15 minutes	42	20	$146.50	$39.94
33508 Harvest of veins for coronary artery bypass procedure using an endoscope	40	40	$57.59	$11.58
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	29	29	$562.28	$132.42
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	28	28	$369.29	$78.20
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	23	22	$157.83	$25.94
33517 Combined vein and artery heart artery bypass	20	20	$666.20	$106.04
33518 Coronary artery bypass using vein or artery graft, 2 grafts	18	18	$1438.34	$328.21
99221 Initial hospital inpatient care per day, typically 30 minutes	17	17	$353.24	$103.38
33405 Replacement of aortic valve on heart-lung machine	15	15	$8482.00	$1718.40
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	12	12	$690.50	$206.15
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	12	12	$372.08	$79.94

Medical Specialties & State Licenses

CMS Verified: 2021-09-14

Thoracic Surgery (Cardiothoracic Vascular Surgery) Primary Specialty

NUCC Taxonomy Code: 208G00000X

State License DE C1-0008629

A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty.

Hospital & Practice Group Affiliations

Bayhealth Medical Center, Inc

640 S State St, Dover, DE 199013530

Phone: 3027444700

Bayhealth Medical Center, Inc

100 Wellness Way, Milford, DE 199634364

Phone: 3027447113

Practice Associates & Co-Workers

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

16 Associated Practitioners

Dr. Luiz Araujo , MD

Surgery - Vascular Surgery

NPI 1053743724

Doctor of Medicine (M.D.)

Dr. Gary Szydlowski , MD

Thoracic Surgery (Cardiothoracic Vascular Surgery)

NPI 1164473070

Doctor of Medicine (M.D.)

Dr. Kaitlyn Melnick , MD

Neurological Surgery

NPI 1366975187

Doctor of Medicine (M.D.)

John Winstead , PA-C

Physician Assistant

NPI 1407023492

Physician Assistant (Certified)

Sharmila Johnson , AGACNP-BC

Nurse Practitioner

NPI 1407196447

Adult-Gerontology Acute Care Nurse Practitioner (Board Certified)

Dr. Daniel Swink , MD

Surgery - Vascular Surgery

NPI 1437653466

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

12 Historical Events

📍

Updated Business Mailing Address May 06, 2021

Registered at 640 S. STATE STREET, MAIL CODE 3055, DOVER, DE 199013530 (Tel: 3024801688)

✅

NPI Profile Active January 30, 2018

NPI status registered as active in NPPES database

📍

Updated Practice Location January 30, 2018

Registered at 540 S GOVERNORS AVE STE 101A, DOVER, DE 199043530 (Tel: 3027447980)

📍

Updated Business Mailing Address January 30, 2018

Registered at 640 S. STATE STREET, POB 3RD FLOOR, DOVER, DE 19901 (Tel: 3024801688)

👤

Provider Name / Credentials Updated January 30, 2018

Recorded as DANIEL MARELLI, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 30, 2018

Thoracic Surgery (Cardiothoracic Vascular Surgery) (License #MD423331 in PA)

✅

NPI Profile Active March 13, 2008

NPI status registered as active in NPPES database

📍

Updated Practice Location March 13, 2008

Registered at 540 S GOVERNORS AVENUE, DOVER, DE 19904 (Tel: 3027447980)

📍

Updated Business Mailing Address March 13, 2008

Registered at 540 S GOVERNORS AVENUE, DOVER, DE 19904 (Tel: 3027447980)

👤

Provider Name / Credentials Updated March 13, 2008

Recorded as DANIEL MARELLI, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) March 13, 2008

Surgery (License #MD423331 in PA)

🟢

Initial NPI Registration & Enumeration July 15, 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: 1518983147

Entity Type:

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

Enumeration Date: July 15, 2006

Last Update: September 14, 2021

Sole Proprietor: No

Update or Correct Profile

Mailing Address

640 S. State Street, Mail Code 3055

Dover, DE 199013530

Phone: 3024801688

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.