Viyan Udawatta, M.D.
Gastroenterology Physician · Clayton, NC
Viyan Udawatta, M.D. is a gastroenterology physician with a practice address in Clayton, North Carolina, and NPI 1861735458, issued on Apr 2, 2013. Check the license (North Carolina 2020-01876, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- Viyan Udawatta
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 2020-01876 NC
Self-reported in NPPES; status is on the state search - Practice location
- 166 Springbrook Ave Ste 105, Clayton, NC 27520
- Phone
- (919) 791-2040
- Enumerated
- Apr 2, 2013
- Record last updated
- Jul 14, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200721004325); accepts Medicare assignment
- Medical or professional school
- University Of Chicago, Pritzker School Of Medicine, 2013
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 681 in North Carolina → Look up another NPI →
Also registered at 166 Springbrook Ave Ste 105
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jack Schimmoeller, MSPO, CPOProsthetist1184577959
Verify Viyan Udawatta in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 2020-01876Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% more Medicare Part D claims than the average gastroenterology physician in 2024
903 Medicare Part D claims for 374 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Omeprazole261 claims
- Peg 3350-Electrolyte109 claims
- Pantoprazole Sodium100 claims
- Linzess48 claims
- Sod Sulf-Potass Sulf-Mag Sulf47 claims
- Rabeprazole Sodium38 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,314.48
50 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- North Carolina MG LLCClayton, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Viyan Udawatta among 681 gastroenterology physician records in North Carolina
Viyan Udawatta, M.D. is one of 681 gastroenterology physician records with a practice address in North Carolina. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 78% of them.
- NPI issued2013 · 78% of these records are older, 20% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2013 · median 2002 among the 498 with a school on file
- Record last updated2020 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in North Carolina
There are 681 gastroenterology physician records in North Carolina.
All 681 in North Carolina → Every provider in Clayton → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Christopher Jordan, M.D.Clayton, NC 275201194791988
- Rahul Shimpi, MDClayton, NC 275201104034230
- Gabriel Ionescu, M.D.Cary, NC 275191750315628
- Oliver Stewart, MDCary, NC 275191932764396
- Annapoorani Veerappan, M.D.Cary, NC 275191356636880
- Sonia Abichandani, M.D.Cary, NC 275181588059067
- Dina Ahmad, M.D.Cary, NC 275181831484005
- Michael Brody, M.D.Cary, NC 275181407948110
Common questions
What is Viyan Udawatta, M.D.'s NPI number?
Viyan Udawatta, M.D.'s National Provider Identifier (NPI) is 1861735458, issued on Apr 2, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Viyan Udawatta, M.D. located?
The NPPES record lists a practice address at 166 Springbrook Ave Ste 105, Clayton, NC, 27520. Phone: (919) 791-2040. Providers update this record themselves, so call before visiting.
How can I verify Viyan Udawatta, M.D.'s license?
NPPES lists North Carolina license number 2020-01876, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Viyan Udawatta, M.D. prescribe under Medicare Part D?
In 2024, Viyan Udawatta, M.D. had 903 Medicare Part D claims for 374 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.