Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1871607507 Individual Practitioner Male Practitioner

Dr. Mark K Chang , MD

Orthopaedic Surgery • Dyer, IN

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Mark Chang, MD is a certified Orthopaedic Surgery practicing in Dyer, IN. With approximately 36 years of clinical experience since graduating from Medical University Of South Carolina College Of Medicine in 1990, Dr. Chang delivers high-quality medical care to the local community at 1100 JOLIET ST.

Dr. Chang accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include established patient outpatient office visit, x-ray of lower and sacral spine, 2-3 views, telephone medical discussion with physician. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1100 Joliet St
Ste 104

Dyer, IN 463111996

Telephone 2198364955
Fax 2198652377
Associated Practice Facility / Clinic
🏢 Mbwoude, Inc. Facility NPI 1497709950

Medicare Profile & Education

Medical School

Medical University Of South Carolina College Of Medicine

Graduation Year

1990

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Orthopaedic Surgery in Dyer, IN

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
36 Yrs Matches City Avg
City Avg: 36.0 Yrs
State Avg: 26.1 Yrs
Regional Practice Density
1 Specialists

Practicing in Dyer, IN (530 Statewide)

Telehealth Adoption Rate
100.0% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount
94.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Chang (36 Years) 36 Yrs
Dyer 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
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
441 224 $114.00 $51.88
99213 Established patient office or other outpatient visit, typically 15 minutes
285 206 $173.00 $82.78
72100 X-ray of lower and sacral spine, 2-3 views
276 154 $192.00 $36.25
99441 Telephone medical discussion with physician, 5-10 minutes
104 39 $35.00 $34.57
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
78 78 $268.00 $100.53
72040 X-ray of upper spine, 2-3 views
70 36 $187.00 $35.81
99202 New patient office or other outpatient visit, typically 20 minutes
65 65 $173.00 $66.72
63047 Partial removal of middle spine bone with release of spinal cord and/or nerves
49 45 $20761.00 $721.68
99221 Initial hospital inpatient care per day, typically 30 minutes
40 39 $243.00 $82.94
99231 Follow-up hospital inpatient care per day, typically 15 minutes
35 21 $115.00 $49.65
63048 Partial removal of spine bone with release of spinal cord and/or nerves
32 22 $5136.25 $186.01
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
31 29 $253.00 $118.64
22842 Placement of stabilizing device to back, 3-6 spine bone segments
30 29 $13055.00 $671.79
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional
29 26 $50.00 $21.44
22612 Fusion of spine in lower back
22 20 $23934.00 $1342.17
72070 X-ray of middle spine, 2 views
19 18 $156.00 $28.48
22853 Insertion of cage or mesh device to spine bone and disc space during spine fusion
18 18 $7023.00 $240.32
22633 Fusion of spine in lower back with partial removal of spine bone and disc
15 15 $28006.00 $1722.39
63052 Partial removal of bone of single segment of spine in lower back with release of spinal cord and/or nerves during fusion of spine in lower back
13 13 $7321.00 $247.43
72170 X-ray of pelvis, 1-2 views
13 12 $210.00 $25.36
22850 Removal of stabilizing device from back of spine
12 11 $8798.00 $341.94

Medical Specialties & State Licenses

CMS Verified: 2025-02-05
Orthopaedic Surgery Primary Specialty

NUCC Taxonomy Code: 207X00000X

State License IL 036095817

An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

Orthopaedic Surgery

NUCC Taxonomy Code: 207X00000X

State License IN 200033540A

An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
036095817 (IL)
Medicaid State Provider ID
200868870A (IN)
Commercial Insurance / Payer ID Railroad Medicare
P00419910

Practice Associates & Co-Workers

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

8 Associated Practitioners
Roland Saucier

Physical Therapist

NPI 1366894495
Dr. Sarah Martinez , DPT

Physical Therapist

NPI 1477801116

Doctor of Physical Therapy

Tara Pai , MSPT

Physical Therapist

NPI 1528014859

Master of Science in Physical Therapy

Dr. Sima Shah , DPT

Physical Therapist

NPI 1578503744

Doctor of Physical Therapy

Sara Stafford , PT

Physical Therapist

NPI 1669486833

Physical Therapist

Daniel Benjamin , PT

Physical Therapist

NPI 1699715615

Physical Therapist

Career & Practice History Timeline

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

6 Historical Events
NPI Profile Active January 13, 2015

NPI status registered as active in NPPES database

📍
Updated Practice Location January 13, 2015

Registered at 1100 JOLIET ST, STE 104, DYER, IN 463111996 (Tel: 2198364955)

📍
Updated Business Mailing Address January 13, 2015

Registered at 1100 JOLIET ST, STE 104, DYER, IN 463111996 (Tel: 2198364955)

👤
Provider Name / Credentials Updated January 13, 2015

Recorded as MARK CHANG, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) January 13, 2015

Orthopaedic Surgery (License #036095817 in IL)

🟢
Initial NPI Registration & Enumeration August 19, 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: 1871607507
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: August 19, 2006
Last Update: February 05, 2025
Sole Proprietor: Yes

Mailing Address

1100 Joliet St, Ste 104

Dyer, IN 463111996

Phone: 2198364955

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.