Dr. Mark Louis Messmer, DO
- Medicare services, 2024
- 855
- Medicare patients, 2024
- 145
- Part D claims, 2024
- 682
- Hospital affiliations
- 3
- Industry payments
- $11,941
- Practice address
- 3916 Ben Franklin Boulevard, Durham, NC 27704
- Practice phone
- Call (919) 956-9300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Messmer'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 Louis Messmer is an orthopedic surgeon in Durham, North Carolina
Dr. Messmer practices at North Carolina Specialty Hospital in Durham, North Carolina, part of North Carolina Specialty Hospital.
Dr. Messmer's NPI, 1508209073, was assigned on April 15, 2013. Dr. Messmer graduated from West Virginia School Of Osteopathic Medicine in 2013. Dr. Messmer holds Pennsylvania license OS017505.
- NPI
- 1508209073NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7315255312
- NPI enumeration date
- April 15, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (919) 956-9300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Louis Messmer practices at North Carolina Specialty Hospital in Durham, North Carolina
Dr. Messmer's primary practice is North Carolina Specialty Hospital, at 3916 Ben Franklin Boulevard, Durham, NC 27704 in Durham County. The practice phone is (919) 956-9300.
- North Carolina Specialty Hospital3916 Ben Franklin Boulevard, Durham, NC 27704 · Durham CountyPhone(919) 956-9300
Source: Dmand AI Affiliation Data
Dr. Mark Louis Messmer is affiliated with 4 sites of care and 2 medical groups
Dr. Messmer's primary practice is North Carolina Specialty Hospital in Durham, North Carolina, part of North Carolina Specialty Hospital. Dr. Messmer is also affiliated with Maria Parham Health. The medical group on file is EmergeOrtho. Dmand AI also links Dr. Messmer to 1 more hospital, 1 group practice or clinic 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 Louis Messmer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Messmer practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| North Carolina Specialty Hospital | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across North Carolina Specialty Hospital and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mark Louis Messmer is one of 809 orthopedic surgeons in North Carolina
Orthopaedic surgery is Dr. Messmer's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Messmer is board certified in orthopedic surgery by the AOA Board of Orthopedic Surgery. Dr. Messmer is licensed in Pennsylvania.
Specialties and state licenses
- Orthopaedic surgery, PennsylvaniaPrimary
Clinical focus
Dmand AI lists arthritis, broken or dislocated ankle/ or foot, bursitis, carpal tunnel syndrome, hand joint or tendon inflammation, hip replacement, joint arthropathy and joint or bone infection among the conditions Dr. Messmer treats.
Orthopedic surgeons near Dr. Messmer
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 Louis Messmer billed Medicare for 855 services in 2024
CMS data shows 855 Medicare services from Dr. Messmer across 6 procedure codes in 2024, for 145 Medicare patients. Medicare paid $27,251 for them. Every service was in an office.
Dr. Messmer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 2632024: 46878%
- Office and hospital visits
- 2023: 2862024: 2725%
- Surgery
- 2023: 922024: 11525%
Dr. Messmer compared with the North Carolina median for orthopedic surgeons, 2024
- Dr. Messmer
- North Carolina median
- Medicare services
- 855vs 99614% below
- Medicare patients
- 145vs 24140% below
- Part D claims
- 639vs 1574.1 times
Medians across 792 orthopedic surgeons in North Carolina with Dmand AI profiles that report each measure.
Dr. Messmer'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. Messmer and other orthopedic surgeons in North Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Louis Messmer treated 145 Medicare patients in 2024, average age 74
CMS counts 145 Medicare patients who saw Dr. Messmer in 2024. The largest group is 65 to 74, with 66 patients. 75% of them have arthritis, and 75% have high blood pressure. 22% 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. Messmer's median patient age at 68, with 60% women.
Dr. Messmer's Medicare patients by age, 2024
Dr. Messmer's Medicare patients by sex, 2024
- Women9364%
- Men5236%
Chronic conditions among Dr. Messmer's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol74%
- Diabetes38%
- Chronic kidney disease33%
- Mood disorders25%
- Depression24%
- Anxiety23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Messmer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark Louis Messmer wrote 682 Medicare Part D claims in 2024
In 2024, Dr. Messmer wrote 682 Medicare Part D claims for 243 patients. 100% of them were for generic drugs. CMS names the drug for 639 of them, across 12 drugs with 11 or more claims each, at $5,441 in total drug cost. In 2023, CMS named 525 claims across 12 drugs.
Dr. Messmer's Part D claims by kind of drug, 2024
- Generic679 claims100%
- Brand-name and other3 claims0%
Dr. Messmer'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. Messmer's Part D claims, 2024
- Opioids25%173 of 682 claims
- Antibiotics4%29 of 682 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: 5252024: 63922%
Drugs named by CMS: 12 in 2024, 12 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 Louis Messmer ranks in the 64th percentile for upper limb (arm) arthroscopy (minimally invasive joint repair) in Medicare
Dr. Messmer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 21 procedures of upper limb (arm) arthroscopy (minimally invasive joint repair) by Dr. Messmer, more than 64% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Messmer ranks in Medicare procedure volume
- Upper limb (arm) arthroscopy (minimally invasive joint repair)
- 64th percentile21 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Hip replacement: 1 to 10 procedures (CMS shows small counts as a range)
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)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Mark Louis Messmer received $11,941 in industry payments from 2016 to 2025
CMS Open Payments shows 86 general payments to Dr. Messmer from 21 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 64% of the total. MicroPort Orthopedics Inc paid the most, $4,100.
General payments to Dr. Messmer by program year, 2016 to 2025
General payments to Dr. Messmer by kind, 2016 to 2025
- Travel and lodging$7,59464%
- Food and beverage$2,98225%
- Education$1,36511%
Companies that paid Dr. Messmer 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 Louis Messmer graduated from West Virginia School Of Osteopathic Medicine
Dr. Messmer graduated from West Virginia School Of Osteopathic Medicine in 2013. Dr. Messmer is a member of AOA.
- Medical school
- Board certified in orthopedic surgery
- Board certified in 2019 - 2025
- Board certified in 2015 - 2017
- Board certified in 2015 - 2022
- Board certified in 2021 - 2023
- Board certified in 2015 - 2017
Source: Dmand AI Professional Profile Data
Dr. Mark Louis Messmer accepts plans from 17 insurance carriers
Dr. Messmer is in network with 17 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Elevance
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross and Blue Shield of North Carolina
- HCSC
- Aspirus Health Plan
- Humana
- +9 more carriersWith a free account
Plan types Dr. Messmer accepts, by number of carriers
- Medicare10
- PPO10
- HMO8
- POS5
- EPO4
- Medicaid2
Source: Dmand AI Insurance Network Data
Sources for Dr. Mark Louis Messmer'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)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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 Louis Messmer
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 Louis Messmer's NPI number?
Dr. Mark Louis Messmer's NPI number is 1508209073. It was assigned on April 15, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Louis Messmer?
Dr. Mark Louis Messmer is an orthopedic surgeon in Durham, North Carolina. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Mark Louis Messmer practice?
Dr. Messmer practices at 3916 Ben Franklin Boulevard, Durham, NC 27704. Dr. Messmer's primary practice is North Carolina Specialty Hospital in Durham, North Carolina, part of North Carolina Specialty Hospital. Dmand AI also links Dr. Messmer to 1 hospital, 1 group practice or clinic and 1 medical group.
What is Dr. Mark Louis Messmer's office phone number?
The practice phone on file for Dr. Messmer is (919) 956-9300.
What is Dr. Mark Louis Messmer's medical license number?
Dr. Messmer holds Pennsylvania license OS017505.
Which hospitals is Dr. Mark Louis Messmer affiliated with?
Dr. Messmer practices at North Carolina Specialty Hospital in Durham, North Carolina. Dr. Messmer is also affiliated with Maria Parham Health. Dmand AI links Dr. Messmer to 1 more hospital.
What medical group is Dr. Mark Louis Messmer part of?
Dr. Messmer is linked to EmergeOrtho. Dmand AI links Dr. Messmer to 1 more medical group.
Does Dr. Mark Louis Messmer accept Medicare?
Yes. CMS data shows Dr. Messmer billed Medicare for 855 services in 2024, and Dr. Messmer accepts Medicare assignment.
How many Medicare patients does Dr. Mark Louis Messmer see?
CMS counts 145 Medicare patients who saw Dr. Messmer in 2024, with an average age of 74.
Is Dr. Mark Louis Messmer board certified?
Yes. Dr. Messmer is board certified in orthopedic surgery by the AOA Board of Orthopedic Surgery.
Show 6 more questionsShow fewer questions
What services does Dr. Mark Louis Messmer bill to Medicare?
In 2024, Dr. Messmer's most billed Medicare services were injected or infused drug (J3301), surgery: bones and joints (20610) and office visit, established patient (99214).
Where did Dr. Mark Louis Messmer go to medical school?
Dr. Messmer graduated from West Virginia School Of Osteopathic Medicine in 2013.
What drugs does Dr. Mark Louis Messmer prescribe most?
In 2024 Medicare Part D data, Dr. Messmer's most prescribed drugs by claims were Meloxicam, Tramadol HCl and Naproxen.
Has Dr. Mark Louis Messmer received payments from drug or device companies?
CMS Open Payments shows $11,941 in general payments to Dr. Messmer from 21 companies from 2016 to 2025. The largest total came from MicroPort Orthopedics Inc.
How long has Dr. Mark Louis Messmer been practicing?
Dr. Messmer graduated from medical school in 2013, 13 years ago.
What insurance does Dr. Mark Louis Messmer accept?
Dr. Messmer is in network with 17 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.
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