Dr. Mark S. Duffield, DO
- Medicare services, 2024
- 12,794
- Medicare patients, 2024
- 283
- Part D claims, 2024
- 1,018
- MIPS score, 2024
- 92
- Hospital affiliations
- 3
- Practice address
- 3672 Marathon Circle, Suite 120, Austell, GA 30106
- Practice phone
- Call (770) 355-8908
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
OrthoAtlanta Surgery Center Austell
Surgery Center - Medicare-Certified · Austell, Georgia
Find Dr. Duffield's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mark S. Duffield is an orthopedic surgeon in Austell, Georgia
Dr. Duffield practices at OrthoAtlanta Surgery Center Austell in Austell, Georgia.
Dr. Duffield's NPI, 1881697803, was assigned on May 23, 2005. Dr. Duffield graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 1987. Dr. Duffield holds Georgia license 038740.
- NPI
- 1881697803NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9638066541
- NPI enumeration date
- May 23, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (770) 355-8908
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark S. Duffield practices at OrthoAtlanta Surgery Center Austell in Austell, Georgia
Dr. Duffield's primary practice is OrthoAtlanta Surgery Center Austell, at 3672 Marathon Circle, Suite 120, Austell, GA 30106. The practice phone is (770) 355-8908.
- OrthoAtlanta Surgery Center Austell3672 Marathon Circle, Suite 120, Austell, GA 30106Phone(770) 355-8908
Source: Dmand AI Affiliation Data
Dr. Mark S. Duffield is affiliated with 6 sites of care and 2 medical groups
Dr. Duffield's primary practice is OrthoAtlanta Surgery Center Austell in Austell, Georgia. Dr. Duffield is also affiliated with Piedmont Atlanta. The medical group on file is Piedmont Orthopedics | OrthoAtlanta. Dmand AI also links Dr. Duffield to 2 more hospitals, 1 group practice or clinic, 1 home health agency and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark S. Duffield's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Duffield practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| OrthoAtlanta Surgery Center Austell | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark S. Duffield is one of 659 orthopedic surgeons in Georgia
Orthopaedic surgery is Dr. Duffield's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Duffield is licensed in Georgia.
Specialties and state licenses
- Orthopaedic surgery, GeorgiaPrimary
Orthopedic surgeons near Dr. Duffield
Counts of orthopedic surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mark S. Duffield billed Medicare for 12,794 services in 2024
CMS data shows 12,794 Medicare services from Dr. Duffield across 11 procedure codes in 2024, for 283 Medicare patients. Medicare paid $51,519 for them. Every service was in an office.
Dr. Duffield's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 6242024: 11,8911806%
- Office and hospital visits
- 2023: 4822024: 4683%
- Imaging
- 2023: 2292024: 2213%
- Surgery
- 2023: 2552024: 21416%
Dr. Duffield compared with the Georgia median for orthopedic surgeons, 2024
- Dr. Duffield
- Georgia median
- Medicare services
- 12,794vs 1,5748.1 times
- Medicare patients
- 283vs 280Close to median
- Part D claims
- 976vs 3542.8 times
Medians across 619 orthopedic surgeons in Georgia with Dmand AI profiles that report each measure.
Dr. Duffield's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Duffield and other orthopedic surgeons in Georgia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark S. Duffield treated 283 Medicare patients in 2024, average age 73
CMS counts 283 Medicare patients who saw Dr. Duffield in 2024. The largest group is 65 to 74, with 154 patients. 75% of them have arthritis, and 75% have high blood pressure. 6% are also on Medicaid. Their average risk score is 1.15, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Duffield's median patient age at 60, with 58% women.
Dr. Duffield's Medicare patients by age, 2024
Dr. Duffield's Medicare patients by sex, 2024
- Women17160%
- Men11240%
Chronic conditions among Dr. Duffield's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Diabetes38%
- Ischemic heart disease35%
- Anxiety25%
- Chronic kidney disease20%
- Mood disorders20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Duffield's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark S. Duffield wrote 1,018 Medicare Part D claims in 2024
In 2024, Dr. Duffield wrote 1,018 Medicare Part D claims for 342 patients. 98% of them were for generic drugs. CMS names the drug for 976 of them, across 12 drugs with 11 or more claims each, at $14,253 in total drug cost. In 2023, CMS named 1,137 claims across 11 drugs.
Dr. Duffield's Part D claims by kind of drug, 2024
- Generic1,000 claims98%
- Brand-name18 claims2%
Dr. Duffield's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Duffield's Part D claims, 2024
- Opioids19%190 of 1,018 claims
- Antibiotics2%18 of 1,018 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,1372024: 97614%
Drugs named by CMS: 12 in 2024, 11 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Mark S. Duffield scored 92 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 92 out of 100 for Dr. Duffield for performance year 2024, reported through an alternative payment model (APM). Dr. Duffield accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 12 procedures of hip replacement by Dr. Duffield, more than 53% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Duffield's MIPS scores, performance year 2024
- 92of 100Final score
- 83.2of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Duffield ranks in Medicare procedure volume
- Hip replacement
- 53rd percentile12 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Knee replacement: 1 to 10 procedures (CMS shows small counts as a range)
Lower limb (leg) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)
Upper limb (arm) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Mark S. Duffield received $7,396 in industry payments from 2016 to 2025
CMS Open Payments shows 42 general payments to Dr. Duffield from 17 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 31% of the total. DePuy Synthes Sales Inc. paid the most, $5,318.
General payments to Dr. Duffield by program year, 2016 to 2025
General payments to Dr. Duffield by kind, 2016 to 2025
- Consulting fees$2,31531%
- Food and beverage$2,07728%
- Speaker and faculty fees$1,80024%
- Travel and lodging$1,20416%
Companies that paid Dr. Duffield the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark S. Duffield graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville
Dr. Duffield graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark S. Duffield's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mark S. Duffield
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mark S. Duffield's NPI number?
Dr. Mark S. Duffield's NPI number is 1881697803. It was assigned on May 23, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark S. Duffield?
Dr. Mark S. Duffield is an orthopedic surgeon in Austell, Georgia. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Mark S. Duffield practice?
Dr. Duffield practices at 3672 Marathon Circle, Suite 120, Austell, GA 30106. Dr. Duffield's primary practice is OrthoAtlanta Surgery Center Austell in Austell, Georgia. Dmand AI also links Dr. Duffield to 2 hospitals, 1 group practice or clinic, 1 home health agency and 1 medical group.
What is Dr. Mark S. Duffield's office phone number?
The practice phone on file for Dr. Duffield is (770) 355-8908.
What is Dr. Mark S. Duffield's medical license number?
Dr. Duffield holds Georgia license 038740.
Which hospitals is Dr. Mark S. Duffield affiliated with?
Dr. Duffield is affiliated with Piedmont Atlanta. Dmand AI links Dr. Duffield to 2 more hospitals.
What medical group is Dr. Mark S. Duffield part of?
Dr. Duffield is linked to Piedmont Orthopedics | OrthoAtlanta. Dmand AI links Dr. Duffield to 1 more medical group.
Does Dr. Mark S. Duffield accept Medicare?
Yes. CMS data shows Dr. Duffield billed Medicare for 12,794 services in 2024, and Dr. Duffield accepts Medicare assignment.
What is Dr. Mark S. Duffield's MIPS score?
Dr. Duffield's MIPS final score for performance year 2024 is 92 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Mark S. Duffield see?
CMS counts 283 Medicare patients who saw Dr. Duffield in 2024, with an average age of 73.
Show 5 more questionsShow fewer questions
What services does Dr. Mark S. Duffield bill to Medicare?
In 2024, Dr. Duffield's most billed Medicare services were injected or infused drug (J1010), office visit, established patient (99213) and injected or infused drug (J1100).
Where did Dr. Mark S. Duffield go to medical school?
Dr. Duffield graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 1987.
What drugs does Dr. Mark S. Duffield prescribe most?
In 2024 Medicare Part D data, Dr. Duffield's most prescribed drugs by claims were Meloxicam, Celecoxib and Oxycodone-Acetaminophen.
Has Dr. Mark S. Duffield received payments from drug or device companies?
CMS Open Payments shows $7,396 in general payments to Dr. Duffield from 17 companies from 2016 to 2025. The largest total came from DePuy Synthes Sales Inc.
How long has Dr. Mark S. Duffield been practicing?
Dr. Duffield graduated from medical school in 1987, 39 years ago.
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