Dr. Joanne M. Matthews, MD
- Medicare services, 2024
- 8,059
- Medicare patients, 2024
- 597
- Part D claims, 2024
- 1,614
- Hospital affiliations
- 1
- Industry payments
- $3,710
- Practice address
- 1850 W Arlington Blvd, Greenville, NC 27834
- Practice phone
- Call (252) 752-6101
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Quadrangle Endoscopy Center
Surgery Center - Medicare-Certified · Greenville, North Carolina
Find Dr. Matthews' 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. Joanne M. Matthews is a gastroenterologist in Greenville, North Carolina
Dr. Matthews practices at Quadrangle Endoscopy Center in Greenville, North Carolina.
Dr. Matthews' NPI, 1649217142, was assigned on June 1, 2006. Dr. Matthews graduated from State University of New York Downstate Medical Center in 1999. Dr. Matthews holds North Carolina license 0090-00759.
- NPI
- 1649217142NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8729082433
- NPI enumeration date
- June 1, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (252) 752-6101
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joanne M. Matthews practices at Quadrangle Endoscopy Center in Greenville, North Carolina
Dr. Matthews' primary practice is Quadrangle Endoscopy Center, at 1850 W Arlington Blvd, Greenville, NC 27834. The practice phone is (252) 752-6101.
- Quadrangle Endoscopy Center1850 W Arlington Blvd, Greenville, NC 27834Phone(252) 752-6101
Source: Dmand AI Affiliation Data
Dr. Joanne M. Matthews is affiliated with 3 sites of care and 1 medical group
Dr. Matthews' primary practice is Quadrangle Endoscopy Center in Greenville, North Carolina. Dr. Matthews is also affiliated with ECU Health Medical Center. The medical group on file is Physicians East, PA. Dmand AI also links Dr. Matthews to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Joanne M. Matthews' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Matthews practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Quadrangle Endoscopy Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Joanne M. Matthews is one of 590 gastroenterologists in North Carolina
Gastroenterology is Dr. Matthews' primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Matthews is licensed in North Carolina.
Specialties and state licenses
- Gastroenterology, North CarolinaPrimary
Gastroenterologists near Dr. Matthews
Counts of gastroenterologists 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. Joanne M. Matthews billed Medicare for 8,059 services in 2024
CMS data shows 8,059 Medicare services from Dr. Matthews across 33 procedure codes in 2024, for 597 Medicare patients. Medicare paid $110,612 for them.
Dr. Matthews' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 4,6652024: 6,61742%
- Surgery
- 2023: 4372024: 51317%
- Lab and pathology
- 2023: 2092024: 37278%
- Office and hospital visits
- 2023: 2782024: 35728%
- Imaging
- 2023: 632024: 8129%
- Drugs given in the office
- 2023: 02024: 73
- Tests and treatments
- 2023: 02024: 46
Where Dr. Matthews' Medicare services took place, 2024
- In an office7,59494%
- In a facility4656%
Dr. Matthews compared with the North Carolina median for gastroenterologists, 2024
- Dr. Matthews
- North Carolina median
- Medicare services
- 8,059vs 43818.4 times
- Medicare patients
- 597vs 2682.2 times
- Part D claims
- 1,444vs 4023.6 times
Medians across 567 gastroenterologists in North Carolina with Dmand AI profiles that report each measure.
Dr. Matthews' 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. Matthews and other gastroenterologists in North Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Joanne M. Matthews treated 597 Medicare patients in 2024, average age 73
CMS counts 597 Medicare patients who saw Dr. Matthews in 2024. The largest group is 65 to 74, with 328 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 5% are also on Medicaid. Their average risk score is 1.00, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Matthews' median patient age at 71, with 68% women.
Dr. Matthews' Medicare patients by age, 2024
Dr. Matthews' Medicare patients by sex, 2024
- Women39867%
- Men19933%
Chronic conditions among Dr. Matthews' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis48%
- Diabetes32%
- Anxiety26%
- Ischemic heart disease25%
- Chronic kidney disease21%
- Mood disorders21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Matthews' 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
- Women68%
- Men32%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joanne M. Matthews wrote 1,614 Medicare Part D claims in 2024
In 2024, Dr. Matthews wrote 1,614 Medicare Part D claims for 819 patients. 81% of them were for generic drugs. CMS names the drug for 1,444 of them, across 30 drugs with 11 or more claims each, at $623,049 in total drug cost. In 2023, CMS named 1,259 claims across 21 drugs.
Dr. Matthews' Part D claims by kind of drug, 2024
- Generic1,310 claims81%
- Brand-name and other304 claims19%
Dr. Matthews' 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. Matthews' Part D claims, 2024
- Antibiotics3%54 of 1,614 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: 1,2592024: 1,44415%
Drugs named by CMS: 30 in 2024, 21 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. Joanne M. Matthews ranks in the 91st percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare
Dr. Matthews accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 212 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Matthews, more than 91% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Matthews ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 91st percentile212 procedures
- Colonoscopy
- 88th percentile148 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Joanne M. Matthews received $3,710 in industry payments from 2016 to 2025
CMS Open Payments shows 78 general payments to Dr. Matthews from 14 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 70% of the total. Ethicon Inc. paid the most, $965.
General payments to Dr. Matthews by program year, 2016 to 2025
General payments to Dr. Matthews by kind, 2016 to 2025
- Food and beverage$2,58970%
- Travel and lodging$1,12130%
Companies that paid Dr. Matthews 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. Joanne M. Matthews graduated from State University of New York Downstate Medical Center
Dr. Matthews graduated from State University of New York Downstate Medical Center in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Joanne M. Matthews'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 |
| 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. Joanne M. Matthews
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. Joanne M. Matthews' NPI number?
Dr. Joanne M. Matthews' NPI number is 1649217142. It was assigned on June 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Joanne M. Matthews?
Dr. Joanne M. Matthews is a gastroenterologist in Greenville, North Carolina. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Joanne M. Matthews practice?
Dr. Matthews practices at 1850 W Arlington Blvd, Greenville, NC 27834. Dr. Matthews' primary practice is Quadrangle Endoscopy Center in Greenville, North Carolina. Dmand AI also links Dr. Matthews to 1 group practice or clinic.
What is Dr. Joanne M. Matthews' office phone number?
The practice phone on file for Dr. Matthews is (252) 752-6101.
What is Dr. Joanne M. Matthews' medical license number?
Dr. Matthews holds North Carolina license 0090-00759.
Which hospitals is Dr. Joanne M. Matthews affiliated with?
Dr. Matthews is affiliated with ECU Health Medical Center.
What medical group is Dr. Joanne M. Matthews part of?
Dr. Matthews is linked to Physicians East, PA.
Does Dr. Joanne M. Matthews accept Medicare?
Yes. CMS data shows Dr. Matthews billed Medicare for 8,059 services in 2024, and Dr. Matthews accepts Medicare assignment.
How many Medicare patients does Dr. Joanne M. Matthews see?
CMS counts 597 Medicare patients who saw Dr. Matthews in 2024, with an average age of 73.
What services does Dr. Joanne M. Matthews bill to Medicare?
In 2024, Dr. Matthews' most billed Medicare services were medicare temporary code (Q9967), medical supplies or transport (A9575) and medical supplies or transport (A9585).
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Where did Dr. Joanne M. Matthews go to medical school?
Dr. Matthews graduated from State University of New York Downstate Medical Center in 1999.
What drugs does Dr. Joanne M. Matthews prescribe most?
In 2024 Medicare Part D data, Dr. Matthews' most prescribed drugs by claims were Gavilyte-G, Pantoprazole Sodium and Gavilyte-C.
Has Dr. Joanne M. Matthews received payments from drug or device companies?
CMS Open Payments shows $3,710 in general payments to Dr. Matthews from 14 companies from 2016 to 2025. The largest total came from Ethicon Inc.
How long has Dr. Joanne M. Matthews been practicing?
Dr. Matthews graduated from medical school in 1999, 27 years ago.
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