J Trauma Acute Care Surg
Dr. John Mason McClellan, MD
- Medicare services, 2024
- 43
- Medicare patients, 2024
- 66
- Publications
- 31
- Hospital affiliations
- 2
- Industry payments
- $2,065
- Practice address
- 101 Manning Drive, Chapel Hill, NC 27514
- Practice phone
- Call (919) 966-4141
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. McClellan'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. John Mason McClellan is a general surgeon in Chapel Hill, North Carolina
Dr. McClellan practices at UNC Hospitals in Chapel Hill, North Carolina, part of University of North Carolina Health Care System.
Dr. McClellan's NPI, 1245674225, was assigned on April 22, 2013. Dr. McClellan holds North Carolina license 2023-01390.
- NPI
- 1245674225NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4587982087
- NPI enumeration date
- April 22, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (919) 966-4141
- 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. John Mason McClellan practices at UNC Hospitals in Chapel Hill, North Carolina
Dr. McClellan's primary practice is UNC Hospitals, at 101 Manning Drive, Chapel Hill, NC 27514 in Orange County. The practice phone is (919) 966-4141.
- UNC Hospitals101 Manning Drive, Chapel Hill, NC 27514 · Orange CountyPhone(919) 966-4141
Source: Dmand AI Affiliation Data
Dr. John Mason McClellan is affiliated with 4 sites of care and 5 medical groups
Dr. McClellan's primary practice is UNC Hospitals in Chapel Hill, North Carolina, part of University of North Carolina Health Care System. Dr. McClellan is also affiliated with Cape Fear Valley Medical Center. The medical group on file is UNC Faculty Physicians. Dmand AI also links Dr. McClellan to 4 more medical groups, 1 group practice or clinic and 1 therapy and rehab clinic, 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. John Mason McClellan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. McClellan practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UNC Hospitals | Available with a free account |
| +3 more sites and 4 medical groups | 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 University of North Carolina Health Care System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John Mason McClellan is one of 1,053 general surgeons in North Carolina
Surgery is Dr. McClellan's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dmand AI has Dr. McClellan's licenses on file in 2 states: North Carolina and Washington.
Specialties and state licenses
- Surgery, North CarolinaPrimary
- Trauma surgery, Washington
General surgeons near Dr. McClellan
Counts of general 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. John Mason McClellan billed Medicare for 43 services in 2024
CMS data shows 43 Medicare services from Dr. McClellan across 2 procedure codes in 2024, for 66 Medicare patients. Medicare paid $3,024 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. McClellan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 222024: 4395%
Dr. McClellan compared with the North Carolina median for general surgeons, 2024
- Dr. McClellan
- North Carolina median
- Medicare services
- 43vs 15172% below
- Medicare patients
- 66vs 11543% below
Medians across 950 general surgeons in North Carolina with Dmand AI profiles that report each measure.
Dr. McClellan'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.
Need commercial claims for Dr. McClellan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. McClellan and other general surgeons in North Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Mason McClellan treated 66 Medicare patients in 2024, average age 74
CMS counts 66 Medicare patients who saw Dr. McClellan in 2024. The largest group is 65 to 74, with 21 patients. 75% of them have high blood pressure, and 68% have high cholesterol. 20% are also on Medicaid. Their average risk score is 2.45, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. McClellan's median patient age at 71, with 42% women.
Dr. McClellan's Medicare patients by age, 2024
Dr. McClellan's Medicare patients by sex, 2024
- Women3350%
- Men3350%
Chronic conditions among Dr. McClellan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol68%
- Anxiety58%
- Arthritis58%
- Mood disorders52%
- Depression48%
- Chronic kidney disease42%
- Diabetes39%
Share of Medicare patients with each condition. A patient can have several.
Dr. McClellan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women42%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. John Mason McClellan takes part in Medicare
Dr. McClellan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 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. John Mason McClellan has 31 publications on record
Dmand AI links 31 papers to Dr. McClellan, published from 2015 to 2025. 2023 was the busiest year, with 6. The most frequent topics are Swine, Resuscitation and Wounds and Injuries. Dr. McClellan has published most often in J Trauma Acute Care Surg. Dr. McClellan's most frequent co-authors are Daniel Taylor Lammers, MD, Jason Ray Bingham, MD and Richard David Betzold, MD.
Dr. McClellan's papers by year, 2015 to 2025
Topics Dr. McClellan writes about most
- Swine
- Resuscitation
- Wounds and Injuries
- Blood Transfusion
- Disease Models, Animal
- Hemorrhage
- Shock, Hemorrhagic
- Emergency Medical Services
Dr. McClellan's most frequent co-authors
- Daniel Taylor Lammers, MD13 shared papers
- Jason Ray Bingham, MD11 shared papers
- Richard David Betzold, MD5 shared papers
Recent publications by Dr. McClellan
J Trauma Acute Care Surg
J Trauma Acute Care Surg
See who Dr. McClellan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. McClellan works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Mason McClellan received $2,065 in industry payments from 2016 to 2024
CMS Open Payments shows 15 general payments to Dr. McClellan from 6 drug and device companies from 2016 to 2024. Travel and lodging make up the largest share, 48% of the total. Zimmer Biomet Holdings, Inc. paid the most, $1,155.
General payments to Dr. McClellan by program year, 2016 to 2024
General payments to Dr. McClellan by kind, 2016 to 2024
- Travel and lodging$98948%
- Food and beverage$77337%
- Grants$30315%
Companies that paid Dr. McClellan the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. John Mason McClellan'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) |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. John Mason McClellan
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. John Mason McClellan's NPI number?
Dr. John Mason McClellan's NPI number is 1245674225. It was assigned on April 22, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. John Mason McClellan?
Dr. John Mason McClellan is a general surgeon in Chapel Hill, North Carolina. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. John Mason McClellan practice?
Dr. McClellan practices at 101 Manning Drive, Chapel Hill, NC 27514. Dr. McClellan's primary practice is UNC Hospitals in Chapel Hill, North Carolina, part of University of North Carolina Health Care System. Dmand AI also links Dr. McClellan to 4 medical groups, 1 group practice or clinic and 1 therapy and rehab clinic.
What is Dr. John Mason McClellan's office phone number?
The practice phone on file for Dr. McClellan is (919) 966-4141.
What is Dr. John Mason McClellan's medical license number?
Dr. McClellan holds North Carolina license 2023-01390, one of the licenses on file in 2 states.
Which states has Dr. John Mason McClellan been licensed in?
Dmand AI has state licenses on file for Dr. McClellan in North Carolina and Washington.
Which hospitals is Dr. John Mason McClellan affiliated with?
Dr. McClellan practices at UNC Hospitals in Chapel Hill, North Carolina. Dr. McClellan is also affiliated with Cape Fear Valley Medical Center.
What medical group is Dr. John Mason McClellan part of?
Dr. McClellan is linked to UNC Faculty Physicians. Dmand AI links Dr. McClellan to 4 more medical groups.
Does Dr. John Mason McClellan accept Medicare?
Yes. CMS data shows Dr. McClellan billed Medicare for 43 services in 2024, and Dr. McClellan accepts Medicare assignment.
How many Medicare patients does Dr. John Mason McClellan see?
CMS counts 66 Medicare patients who saw Dr. McClellan in 2024, with an average age of 74.
Show 5 more questionsShow fewer questions
What services does Dr. John Mason McClellan bill to Medicare?
In 2024, Dr. McClellan's most billed Medicare services were hospital inpatient care (99232) and hospital inpatient care (99222).
Has Dr. John Mason McClellan received payments from drug or device companies?
CMS Open Payments shows $2,065 in general payments to Dr. McClellan from 6 companies from 2016 to 2024. The largest total came from Zimmer Biomet Holdings, Inc.
How long has Dr. John Mason McClellan been practicing?
Dr. McClellan graduated from medical school in 2013, 13 years ago.
Does Dr. John Mason McClellan do research?
Dmand AI links 31 publications to Dr. McClellan, published from 2015 to 2025.
Who does Dr. John Mason McClellan publish with?
Dr. McClellan's most frequent co-authors are Daniel Taylor Lammers, MD (13 shared papers), Jason Ray Bingham, MD (11 shared papers) and Richard David Betzold, MD (5 shared papers).
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