Active NPI 1033108998 Individual Practitioner Male Practitioner

Dr. Mark Douglas Horness , MD

Surgery • Midland, MI

Professional Overview & Biography Verified Profile Summary

Dr. Mark Horness, MD is a registered healthcare professional specializing in Surgery in Midland, MI. Practice services are available at 4011 ORCHARD DR under active NPI credentials.

Frequently performed procedures and clinical services include ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers, ultrasound study of arm or leg veins with compression and maneuvers, ultrasound of both sides of head and neck blood flow. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

4011 Orchard Dr
Suite 2000

Midland, MI 486406190

Telephone 9896311221

Fax 9896316686

Associated Practice Facility / Clinic

🏢 East Central Oncology Associates Facility NPI 1104811405

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Midland, MI

Active Practitioner

Practitioner Clinical Experience

Active

City Avg: 19.6 Yrs

State Avg: 25.8 Yrs

Regional Practice Density

11 Specialists

Practicing in Midland, MI (1479 Statewide)

Telehealth Adoption Rate

9.1% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

68.8% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2023)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	262	257	$47.00	$20.72
93970 Ultrasound study of arm or leg veins with compression and maneuvers	175	168	$80.00	$31.91
93880 Ultrasound of both sides of head and neck blood flow	162	159	$72.00	$37.15
93922 Ultrasound study of arm and leg arteries	68	67	$30.00	$11.80
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	32	32	$47.00	$20.71
93923 Complete ultrasound study of arm and leg arteries	29	29	$53.00	$21.20
93880 Ultrasound of both sides of head and neck blood flow	19	16	$137.05	$53.46
93926 Ultrasound of one leg arteries or artery grafts	14	14	$314.00	$22.11
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow	14	14	$150.00	$53.91
93925 Ultrasound of leg arteries or artery grafts	12	12	$62.00	$36.22

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	132	127	$47.00	$21.03
93970 Ultrasound study of arm or leg veins with compression and maneuvers	122	120	$80.00	$33.01
93880 Ultrasound of both sides of head and neck blood flow	103	103	$72.00	$38.22
93922 Ultrasound study of arm and leg arteries	56	53	$30.00	$12.06
93923 Complete ultrasound study of arm and leg arteries	20	20	$53.00	$21.82
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow	13	13	$150.00	$54.59
93926 Ultrasound of one leg arteries or artery grafts	12	11	$314.00	$22.87

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93970 Ultrasound study of arm or leg veins with compression and maneuvers	185	177	$79.84	$33.13
93880 Ultrasound of both sides of head and neck blood flow	159	159	$78.05	$38.23
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	159	151	$53.04	$21.43
93922 Ultrasound study of arm and leg arteries	77	72	$30.00	$12.63
93923 Complete ultrasound study of arm and leg arteries	48	48	$58.33	$21.54
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow	24	24	$133.96	$55.63
93976 Ultrasound limited scan of abdominal, pelvic, and/or scrotal arterial inflow and venous outflow	18	18	$138.00	$38.18
93926 Ultrasound of one leg arteries or artery grafts	16	14	$297.44	$23.29

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93880 Ultrasound of both sides of head and neck blood flow	324	315	$109.00	$39.83
93970 Ultrasound study of arm or leg veins with compression and maneuvers	233	219	$79.00	$34.82
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	226	213	$79.00	$22.41
93922 Ultrasound study of arm and leg arteries	107	94	$30.00	$12.87
93923 Complete ultrasound study of arm and leg arteries	83	80	$85.00	$22.34
93926 Ultrasound of one leg arteries or artery grafts	24	20	$49.00	$24.67
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow	22	21	$73.00	$56.20
93976 Ultrasound limited scan of abdominal, pelvic, and/or scrotal arterial inflow and venous outflow	20	18	$85.00	$40.28
93990 Ultrasound of dialysis access	13	13	$102.00	$25.47

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93880 Ultrasound of both sides of head and neck blood flow	430	421	$109.00	$40.20
93970 Ultrasound study of arm or leg veins with compression and maneuvers	359	334	$79.00	$34.54
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	291	263	$79.00	$22.58
93923 Complete ultrasound study of arm and leg arteries	119	114	$85.00	$22.16
93922 Ultrasound study of arm and leg arteries	95	88	$30.00	$12.71
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow	47	46	$73.00	$57.87
93926 Ultrasound of one leg arteries or artery grafts	39	29	$49.00	$24.40
93990 Ultrasound of dialysis access	25	23	$102.00	$24.85
G0365 Vessel mapping of vessels for hemodialysis access (services for preoperative vessel mapping prior to creation of hemodialysis access using an autogenous hemodialysis conduit, including arterial inflow and venous outflow)	18	18	$25.00	$12.39
93924 Ultrasound study of arteries of both legs at rest and exercise	17	17	$85.00	$24.74
93976 Ultrasound limited scan of abdominal, pelvic, and/or scrotal arterial inflow and venous outflow	16	16	$85.00	$39.82

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93970 Ultrasound study of arm or leg veins with compression and maneuvers	206	198	$79.00	$33.12
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	189	182	$79.00	$21.62
93923 Complete ultrasound study of arm and leg arteries	84	83	$85.00	$21.35
93922 Ultrasound study of arm and leg arteries	56	53	$30.00	$12.19
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	36	29	$80.00	$39.67
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow	28	27	$73.00	$55.70
99202 New patient office or other outpatient visit, typically 20 minutes	25	25	$140.00	$68.08
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	16	16	$265.00	$126.44
G0365 Vessel mapping of vessels for hemodialysis access (services for preoperative vessel mapping prior to creation of hemodialysis access using an autogenous hemodialysis conduit, including arterial inflow and venous outflow)	16	16	$25.00	$11.86
93924 Ultrasound study of arteries of both legs at rest and exercise	14	14	$85.00	$23.70
93976 Ultrasound limited scan of abdominal, pelvic, and/or scrotal arterial inflow and venous outflow	14	14	$85.00	$38.08
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	12	12	$375.00	$187.62
93990 Ultrasound of dialysis access	12	11	$102.00	$23.76
47562 Removal of gallbladder using an endoscope	12	12	$2464.00	$595.07

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93970 Ultrasound study of arm or leg veins with compression and maneuvers	213	207	$79.02	$33.27
93971 Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers	179	170	$83.76	$21.17
93923 Complete ultrasound study of arm and leg arteries	128	126	$83.29	$21.53
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	74	58	$77.92	$39.27
93922 Ultrasound study of arm and leg arteries	47	46	$37.72	$12.12
99202 New patient office or other outpatient visit, typically 20 minutes	38	38	$138.68	$67.20
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow	26	26	$73.00	$55.41
93926 Ultrasound of one leg arteries or artery grafts	13	13	$49.00	$23.26
93976 Ultrasound limited scan of abdominal, pelvic, and/or scrotal arterial inflow and venous outflow	12	12	$89.42	$38.24
47563 Removal of gallbladder with x-ray study of bile ducts using an endoscope	11	11	$2576.00	$675.50
49505 Repair of groin hernia (5 years or older)	11	11	$1466.18	$512.56

Medical Specialties & State Licenses

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License MI MH047857

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

1923733 (MI)

Practice Associates & Co-Workers

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

1 Associated Practitioners

Dr. Ellsworth Ludwig , MD

Surgery

NPI 1689663510

Doctor of Medicine (M.D.)

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 4011 ORCHARD DR, SUITE 2000, MIDLAND, MI 486406190 (Tel: 9896311221)

📍

Updated Business Mailing Address July 08, 2007

Registered at 4011 ORCHARD DR, SUITE 2000, MIDLAND, MI 486406190 (Tel: 9896311221)

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as MARK HORNESS, MD

🎓

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

Surgery (License #MH047857 in MI)

🟢

Initial NPI Registration & Enumeration October 13, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1033108998

Entity Type:

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

Enumeration Date: October 13, 2005

Last Update: July 13, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

4011 Orchard Dr, Suite 2000

Midland, MI 486406190

Phone: 9896311221

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.