John Glenn Tiu, M.D.
Cardiovascular Disease Physician · Farmington, CT
John Glenn Tiu, M.D. is a cardiovascular disease physician with a practice address in Farmington, Connecticut, and NPI 1225423098, issued on Mar 30, 2015. Check the license (Connecticut 69289, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- John Glenn Tiu
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 69289 CT
Self-reported in NPPES; status is on the state search - Practice location
- 263 Farmington Ave, Farmington, CT 06030
- Phone
- (860) 679-3343
- Enumerated
- Mar 30, 2015
- Record last updated
- Jan 31, 2024
- Fax
- (860) 679-4256
- Medicare enrollment
- Enrolled (PECOS I20210823001271); accepts Medicare assignment
- Medical or professional school
- Drexel University College Of Medicine, 2015
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 503 in Connecticut → Look up another NPI →
Also registered at 263 Farmington Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nour Abdallah, MDStudent in an Organized Health Care Education/Training Program1225882509
- Omar Abdelatey, DDSStudent in an Organized Health Care Education/Training Program1700672789
- Samira AbdelrehimStudent in an Organized Health Care Education/Training Program1225823743
- Reham AbdelsalamStudent in an Organized Health Care Education/Training Program1578143707
- Ezzat Abdoun, DDSStudent in an Organized Health Care Education/Training Program1962630905
- Arif Salman Abdul Shakore, B.D.S., M.D.S.Student in an Organized Health Care Education/Training Program1750797387
Verify John Glenn Tiu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 69289Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
1,796 Medicare Part D claims for 292 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Metoprolol Succinate234 claims
- Atorvastatin Calcium178 claims
- Ezetimibe154 claims
- Eliquis132 claims
- Amlodipine Besylate117 claims
- Rosuvastatin Calcium101 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 practice group's MIPS final score for 2023 (Medicare payment program): 79.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $23.36
1 payment: food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 16,686 providers of this specialty with any payment received $3,819.56 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
- University OF Connecticut Health CenterFarmington, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Glenn Tiu among 503 cardiovascular disease physician records in Connecticut
John Glenn Tiu, M.D. is one of 503 cardiovascular disease physician records with a practice address in Connecticut. 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 2015, is newer than 84% of them.
- NPI issued2015 · 84% of these records are older, 14% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2015 · median 2000 among the 348 with a school on file
- Record last updated2024 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in Connecticut
There are 503 cardiovascular disease physician records in Connecticut.
All 503 in Connecticut → Every provider in Farmington → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Maxwell Eder, MDFarmington, CT 060301740779420
- Anjanette Ferris, MDFarmington, CT 060301598809832
- Wesley Hager, M.D.Farmington, CT 060301144225863
- Lucie Henry, DOFarmington, CT 060301316434517
- John Hinson, M.D.Farmington, CT 060301609071133
- Agnes Kim, M.D.Farmington, CT 060301255490348
- Bruce Liang, M.D.Farmington, CT 060301548266513
- Joyce Meng, MDFarmington, CT 060301083649164
Common questions
What is John Glenn Tiu, M.D.'s NPI number?
John Glenn Tiu, M.D.'s National Provider Identifier (NPI) is 1225423098, issued on Mar 30, 2015. An NPI identifies a provider in billing; it is not a license.
Where is John Glenn Tiu, M.D. located?
The NPPES record lists a practice address at 263 Farmington Ave, Farmington, CT, 06030. Phone: (860) 679-3343. Providers update this record themselves, so call before visiting.
How can I verify John Glenn Tiu, M.D.'s license?
NPPES lists Connecticut license number 69289, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Glenn Tiu, M.D. prescribe under Medicare Part D?
In 2024, John Glenn Tiu, M.D. had 1,796 Medicare Part D claims for 292 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
What is John Glenn Tiu, M.D.'s MIPS final score?
The 2023 MIPS final score is 79.3 of 100, reported for the practice group. 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.