Lynn Yu, M.D.
Internal Medicine Physician · Farmington, CT
Lynn Yu, M.D. is an internal medicine physician with a practice address in Farmington, Connecticut, and NPI 1649586561, issued on Aug 30, 2010. Check the license (Connecticut 052934, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Lynn Yu
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 052934 CT
Self-reported in NPPES; status is on the state search - Practice location
- 1055 Farmington Ave Unit D1, Farmington, CT 06032
- Phone
- (860) 491-4547
- Enumerated
- Aug 30, 2010
- Record last updated
- Jul 8, 2026
- Fax
- (860) 400-9097
- Medicaid ID
- 1649586561 CT
- Medicare enrollment
- Enrolled (PECOS I20140627001121); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Verify Lynn Yu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 052934Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% more Medicare Part D claims than the average internal medicine physician in 2024
3,788 Medicare Part D claims for 397 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 77 claims were for opioids.
Most prescribed
- Amlodipine Besylate282 claims
- Atorvastatin Calcium269 claims
- Losartan Potassium183 claims
- Levothyroxine Sodium175 claims
- Lisinopril162 claims
- Rosuvastatin Calcium143 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).
Bills Medicare through 2 group practices
- Mclean FundSimsbury, CT
- 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).
Lynn Yu among 2,623 internal medicine physician records in Connecticut
Lynn Yu, M.D. is one of 2,623 internal medicine physician records with a practice address in Connecticut. 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 2010, is newer than 62% of them.
- NPI issued2010 · 62% of these records are older, 36% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2010 · median 2004 among the 1,646 with a school on file
- Record last updated2026 · 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 207R00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
117 internal medicine physician records list a practice address in Farmington
They are 117 of the 2,993 NPPES records with a practice address in Farmington, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Farmington → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Denes Balazs, MDFarmington, CT 060321982610192
- Joseph Brenes, M.D.Farmington, CT 060321467590703
- Laura Brenes, MDFarmington, CT 060321174795371
- Kyung Chung, MDFarmington, CT 060321477657088
- Edward Clerkin, M.D.Farmington, CT 060321518999622
- Karl Dauphinais, M.D.Farmington, CT 060321548467897
- Roger El-Hachem, M.D.Farmington, CT 060321700834959
- Paul Guardino, MDFarmington, CT 060321174531172
Common questions
What is Lynn Yu, M.D.'s NPI number?
Lynn Yu, M.D.'s National Provider Identifier (NPI) is 1649586561, issued on Aug 30, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Lynn Yu, M.D. located?
The NPPES record lists a practice address at 1055 Farmington Ave Unit D1, Farmington, CT, 06032. Phone: (860) 491-4547. Providers update this record themselves, so call before visiting.
How can I verify Lynn Yu, M.D.'s license?
NPPES lists Connecticut license number 052934, 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 Lynn Yu, M.D. prescribe under Medicare Part D?
In 2024, Lynn Yu, M.D. had 3,788 Medicare Part D claims for 397 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Lynn Yu, 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.