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DR. MARK DOUGLAS HORNESS MD
NPI 1033108998
Surgery in Midland, MI

Active since October 13, 2005PECOS Enrolled
4011 ORCHARD DR, SUITE 2000, MIDLAND, MI 48640(989) 631-1221(989) 631-6686 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

About Dr. Mark Douglas Horness Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARK DOUGLAS HORNESS MD (NPI 1033108998) is an individual surgery provider in Midland, Michigan, licensed in Michigan (MH047857) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1033108998
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameDR. MARK DOUGLAS HORNESSCredential: MD
Location Address4011 ORCHARD DR, SUITE 2000Midland, MI 48640-6190
Mailing Address4011 Orchard Dr, Suite 2000Midland, MI 48640-6190 · (989) 631-1221 · Fax (989) 631-6686
Phone(989) 631-1221
Fax(989) 631-6686
Sole ProprietorNo
Enumeration DateOctober 13, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1033108998 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in MI · MH047857
Definition
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.
4011 ORCHARD DR, Midland, MI 48640
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Other Identifiers 1

Medicaid1923733MI

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mark Douglas Horness Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer– Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48640 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$84.74 typical visit price
range $54.34 – $166.68
Typical copayment $21.18 (range $13.58 – $41.67)
Most-billed visit code 99203
Established Patient
$68.07 typical visit price
range $17.09 – $135.40
Typical copayment $17.01 (range $4.27 – $33.85)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

EAST CENTRAL ONCOLOGY ASSOCIATES PLC
Internal Medicine (Hematology & Oncology)
4011 ORCHARD DR, STE 1000
MIDLAND, MI 48640
Midland County (989) 631-3975
EAST CENTRAL ONCOLOGY ASSOCIATES
Internal Medicine (Hematology & Oncology)
4011 ORCHARD DR, SUITE 1000
MIDLAND, MI 48640
Midland County (989) 631-3975
ANGELA ZAUCHA FNP-BC
Nurse Practitioner (Family)
4011 ORCHARD DR, SUITE 1002
MIDLAND, MI 48640
Midland County (989) 794-5240
MYMICHIGAN MEDICAL GROUP
Surgery
4011 ORCHARD DR
MIDLAND, MI 48640
Midland County (989) 839-3235
NPS ASSOCIATES, LLC
Clinic/Center (Ambulatory Surgical)
4011 ORCHARD DR, STE. 3008
MIDLAND, MI 48640
Midland County (989) 839-6636
MS. FAITH D FUENTES M.D.
Psychiatry & Neurology (Neurology)
4011 ORCHARD DR, SUITE 4012
MIDLAND, MI 48640
Midland County (989) 839-2855
DR. ELLSWORTH EMIL LUDWIG MD
Surgery
4011 ORCHARD DR, SUITE 2000
MIDLAND, MI 48640
Midland County (989) 631-1221
BRIAN R COPELAND MD PC
Specialist
4011 ORCHARD DR, SUITE 4004
MIDLAND, MI 48640
Midland County (989) 839-3235

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Horness's NPI number?

The NPI number for Mark Horness is 1033108998. It was assigned to this individual provider in the NPPES registry on October 13, 2005.

Where is Mark Horness located?

Mark Horness practices at 4011 Orchard Dr Suite 2000, Midland, MI 48640. The listed phone number is (989) 631-1221.

What is Mark Horness's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Mark Horness enrolled in Medicare?

Yes. Mark Horness is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mark Horness was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.