Dr. William H. Chapman III, MD
- Medicare services, 2024
- 572
- Medicare patients, 2024
- 267
- Part D claims, 2024
- 656
- MIPS score, 2024
- 88
- Hospital affiliations
- 4
- Practice address
- 2465 Emerald Place, Greenville, NC 27834
- Practice phone
- Call (252) 758-2424
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Atlantic Gastroenterology Endoscopy Center
Surgery Center - Medicare-Certified · Greenville, North Carolina
Find Dr. Chapman'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. William H. Chapman III is a general surgeon in Greenville, North Carolina
Dr. Chapman practices at Atlantic Gastroenterology Endoscopy Center in Greenville, North Carolina.
Dr. Chapman's NPI, 1588662514, was assigned on July 13, 2005. Dr. Chapman graduated from Geisel School of Medicine at Dartmouth in 1987. Dr. Chapman holds North Carolina license 9401392.
- NPI
- 1588662514NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5799811212
- NPI enumeration date
- July 13, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (252) 758-2424
- 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. William H. Chapman III practices at Atlantic Gastroenterology Endoscopy Center in Greenville, North Carolina
Dr. Chapman's primary practice is Atlantic Gastroenterology Endoscopy Center, at 2465 Emerald Place, Greenville, NC 27834. The practice phone is (252) 758-2424.
- Atlantic Gastroenterology Endoscopy Center2465 Emerald Place, Greenville, NC 27834Phone(252) 758-2424
Source: Dmand AI Affiliation Data
Dr. William H. Chapman III is affiliated with 6 sites of care and 1 medical group
Dr. Chapman's primary practice is Atlantic Gastroenterology Endoscopy Center in Greenville, North Carolina. Dr. Chapman is also affiliated with ECU Health Medical Center. The medical group on file is Southern Surgical Associates. Dmand AI also links Dr. Chapman to 3 more hospitals and 1 group practice or 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. William H. Chapman III's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chapman practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Atlantic Gastroenterology Endoscopy Center | Available with a free account |
| +5 more affiliated sites | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. William H. Chapman III is one of 1,053 general surgeons in North Carolina
Surgery is Dr. Chapman's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Chapman is licensed in North Carolina.
Specialties and state licenses
- Surgery, North CarolinaPrimary
General surgeons near Dr. Chapman
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. William H. Chapman III billed Medicare for 572 services in 2024
CMS data shows 572 Medicare services from Dr. Chapman across 11 procedure codes in 2024, for 267 Medicare patients. Medicare paid $73,687 for them.
Dr. Chapman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3842024: 3811%
- Surgery
- 2023: 1652024: 19116%
Where Dr. Chapman's Medicare services took place, 2024
- In an office38167%
- In a facility19133%
Dr. Chapman compared with the North Carolina median for general surgeons, 2024
- Dr. Chapman
- North Carolina median
- Medicare services
- 572vs 1513.8 times
- Medicare patients
- 267vs 1152.3 times
- Part D claims
- 554vs 4113.5 times
Medians across 950 general surgeons in North Carolina with Dmand AI profiles that report each measure.
Dr. Chapman'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. Chapman?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chapman 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. William H. Chapman III treated 267 Medicare patients in 2024, average age 73
CMS counts 267 Medicare patients who saw Dr. Chapman in 2024. The largest group is 65 to 74, with 119 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.50, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chapman's median patient age at 71, with 66% women.
Dr. Chapman's Medicare patients by age, 2024
Dr. Chapman's Medicare patients by sex, 2024
- Women15859%
- Men10941%
Chronic conditions among Dr. Chapman's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Ischemic heart disease40%
- Diabetes33%
- Anxiety32%
- Chronic kidney disease31%
- Mood disorders28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chapman'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
- Women66%
- Men34%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William H. Chapman III wrote 656 Medicare Part D claims in 2024
In 2024, Dr. Chapman wrote 656 Medicare Part D claims for 197 patients. 96% of them were for generic drugs. CMS names the drug for 554 of them, across 10 drugs with 11 or more claims each, at $11,678 in total drug cost. In 2023, CMS named 583 claims across 10 drugs.
Dr. Chapman's Part D claims by kind of drug, 2024
- Generic630 claims96%
- Brand-name26 claims4%
Dr. Chapman'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. Chapman's Part D claims, 2024
- Opioids23%151 of 656 claims
- Antibiotics11%71 of 656 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: 5832024: 5545%
Drugs named by CMS: 10 in 2024, 10 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. William H. Chapman III scored 88 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 88 out of 100 for Dr. Chapman for performance year 2024, reported individually. Dr. Chapman accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 20 procedures of hernia repair (minimally invasive) by Dr. Chapman, more than 88% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Chapman's MIPS scores, performance year 2024
- 88of 100Final score
- 81of 100Quality
- 99of 100Promoting Interoperability
- 40of 100Improvement Activities
- 79of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Chapman ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 76th percentile98 procedures
- Colonoscopy
- 69th percentile63 procedures
- Hernia repair (minimally invasive)
- 88th percentile20 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Hernia repair - groin (open): 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. William H. Chapman III received $15,021 in industry payments from 2016 to 2025
CMS Open Payments shows 112 general payments to Dr. Chapman from 27 drug and device companies from 2016 to 2025. Education make up the largest share, 67% of the total. Intuitive Surgical, Inc. paid the most, $11,033.
General payments to Dr. Chapman by program year, 2016 to 2025
General payments to Dr. Chapman by kind, 2016 to 2025
- Education$10,00067%
- Food and beverage$2,49417%
- Consulting fees$1,57510%
- Travel and lodging$9526%
Companies that paid Dr. Chapman 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. William H. Chapman III graduated from Geisel School of Medicine at Dartmouth
Dr. Chapman graduated from Geisel School of Medicine at Dartmouth in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William H. Chapman III'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. William H. Chapman III
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. William H. Chapman III's NPI number?
Dr. William H. Chapman III's NPI number is 1588662514. It was assigned on July 13, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. William H. Chapman III?
Dr. William H. Chapman III is a general surgeon in Greenville, North Carolina. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. William H. Chapman III practice?
Dr. Chapman practices at 2465 Emerald Place, Greenville, NC 27834. Dr. Chapman's primary practice is Atlantic Gastroenterology Endoscopy Center in Greenville, North Carolina. Dmand AI also links Dr. Chapman to 3 hospitals and 1 group practice or clinic.
What is Dr. William H. Chapman III's office phone number?
The practice phone on file for Dr. Chapman is (252) 758-2424.
What is Dr. William H. Chapman III's medical license number?
Dr. Chapman holds North Carolina license 9401392.
Which hospitals is Dr. William H. Chapman III affiliated with?
Dr. Chapman is affiliated with ECU Health Medical Center. Dmand AI links Dr. Chapman to 3 more hospitals.
What medical group is Dr. William H. Chapman III part of?
Dr. Chapman is linked to Southern Surgical Associates.
Does Dr. William H. Chapman III accept Medicare?
Yes. CMS data shows Dr. Chapman billed Medicare for 572 services in 2024, and Dr. Chapman accepts Medicare assignment.
What is Dr. William H. Chapman III's MIPS score?
Dr. Chapman's MIPS final score for performance year 2024 is 88 out of 100, reported individually.
How many Medicare patients does Dr. William H. Chapman III see?
CMS counts 267 Medicare patients who saw Dr. Chapman in 2024, with an average age of 73.
Show 5 more questionsShow fewer questions
What services does Dr. William H. Chapman III bill to Medicare?
In 2024, Dr. Chapman's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and surgery: digestive system (43235).
Where did Dr. William H. Chapman III go to medical school?
Dr. Chapman graduated from Geisel School of Medicine at Dartmouth in 1987.
What drugs does Dr. William H. Chapman III prescribe most?
In 2024 Medicare Part D data, Dr. Chapman's most prescribed drugs by claims were Ondansetron ODT, Hydrocodone-Acetaminophen and Omeprazole.
Has Dr. William H. Chapman III received payments from drug or device companies?
CMS Open Payments shows $15,021 in general payments to Dr. Chapman from 27 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. William H. Chapman III been practicing?
Dr. Chapman graduated from medical school in 1987, 39 years ago.
Selling to surgery practices?
See general surgeons in North Carolina by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card