Tuanh Tonnu, MD
Gastroenterology Physician · Gaithersburg, MD
Tuanh Tonnu, MD is a gastroenterology physician with a practice address in Gaithersburg, Maryland, and NPI 1083723878, issued on Aug 29, 2006. Check the license (Maryland D47295, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Tuanh Tonnu
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- D47295 MD
Self-reported in NPPES; status is on the state search - Practice location
- 9057 Shady Grove CT, Gaithersburg, MD 20877
- Phone
- (301) 721-1614
- Enumerated
- Aug 29, 2006
- Record last updated
- Aug 2, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (301) 721-1624
- Medicaid ID
- 695400600 MD
- Medicare enrollment
- Enrolled (PECOS I20110811000506); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 1990
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 505 in Maryland → Look up another NPI →
Verify Tuanh Tonnu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D47295Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.0 times the Medicare Part D claims of the average gastroenterology physician in 2024
2,442 Medicare Part D claims for 303 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate273 claims
- Omeprazole187 claims
- Atorvastatin Calcium143 claims
- Metformin Hcl109 claims
- Losartan Potassium102 claims
- Simvastatin80 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.
The MIPS final score for 2023 (Medicare payment program): 86.8 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $382.51
18 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, 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
- Amber Hill Physical Therapy IncFrederick, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tuanh Tonnu among 505 gastroenterology physician records in Maryland
Tuanh Tonnu, MD is one of 505 gastroenterology physician records with a practice address in Maryland. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 16% of them.
- NPI issued2006 · 16% of these records are older, 46% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1990 · median 2002 among the 344 with a school on file
- Record last updated2016 · 61% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Maryland
There are 505 gastroenterology physician records in Maryland.
All 505 in Maryland → Every provider in Gaithersburg → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Boo Kim, MDGaithersburg, MD 208771952309882
- Jesus Untiveros, MEDICAL DEGREEGaithersburg, MD 208771114145877
- Halim Charbel, MDGermantown, MD 208761740431501
- Reza HashemipourGermantown, MD 208761861846958
- John Bassett, M.D.Bethesda, MD 208891982684130
- Anita Bhushan, MDBethesda, MD 208891700089174
- Joseph Cheatham, M.D.Bethesda, MD 208891700948494
- Lawrence Goldkind, MDBethesda, MD 208891306917935
Common questions
What is Tuanh Tonnu, MD's NPI number?
Tuanh Tonnu, MD's National Provider Identifier (NPI) is 1083723878, issued on Aug 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Tuanh Tonnu, MD located?
The NPPES record lists a practice address at 9057 Shady Grove CT, Gaithersburg, MD, 20877. Phone: (301) 721-1614. Providers update this record themselves, so call before visiting.
How can I verify Tuanh Tonnu, MD's license?
NPPES lists Maryland license number D47295, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Tuanh Tonnu, MD prescribe under Medicare Part D?
In 2024, Tuanh Tonnu, MD had 2,442 Medicare Part D claims for 303 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Tuanh Tonnu, MD's MIPS final score?
The 2023 MIPS final score is 86.8 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.