Wei An, M.D.
Internal Medicine Physician · West Hartford, CT
Wei An, M.D. is an internal medicine physician with a practice address in West Hartford, Connecticut, and NPI 1942576947, issued on Mar 24, 2012. Check the license on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Wei An
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 836 Farmington Ave Ste 207, West Hartford, CT 06119
- Phone
- (860) 232-9911
- Enumerated
- Mar 24, 2012
- Entity
- Type 1 · individual
Also registered at 836 Farmington Ave Ste 207
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Olivia Dellostritto, PA-CMedical Physician Assistant1619473709
- Ian Gragnolati, PA-CPhysician Assistant1689368466
- Justin Hong, PA-CPhysician Assistant1033842349
- Kelsey Kaman, M.D.Allergy & Immunology (Internal Medicine) Physician1831552546
- Sarah Preleski, PA-CPhysician Assistant1003781444
- Shauna Rafferty, NP-CFamily Nurse Practitioner1285269431
Verify Wei An in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
46% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,509 Medicare Part D claims for 296 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D.
Most prescribed
- Montelukast Sodium152 claims
- Ipratropium Bromide144 claims
- Albuterol Sulfate Hfa135 claims
- Trelegy Ellipta119 claims
- Xolair102 claims
- Azelastine-Fluticasone76 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 Medicare quality score for 2023: 79.5 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: $1,194.68
66 payments, mostly food and beverage; the largest payer was GlaxoSmithKline, LLC.. The 65,274 providers of this specialty with any payment received $2,536.66 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.
One hospital or facility affiliation
- Connecticut Asthma And Allergy Center LLCWest Hartford, CT
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
52 internal medicine physician records list a West Hartford practice address
They are 52 of the 1,653 NPPES records with a West Hartford practice address, and 2,830 internal medicine physician records in Connecticut.
All 52 in West Hartford → All 2,830 in Connecticut → Every provider in West Hartford →
Other internal medicine physician records in Connecticut
- Christina AbavanaBridgeport, CT1508206574
- Hoda Abdel Salam, M.D.New Britain, CT1144509316
- Gada Abdelhafiz, MDNew London, CT1467649558
- Mahmoud Abdelrahman, MDBridgeport, CT1467072868
- Simon Abi-SalehBridgeport, CT1891315529
- Gerard Abidor, D.O.Bridgeport, CT1518014539
- Richard Abraham, M.D.Canton, CT1023044252
- Odaliz Abreu-Lanfranco, MDNew Haven, CT1538276134
- Nila Aburto, MDStamford, CT1396325718
- Angelo Accomando, M.D.East Haven, CT1063454247
Common questions
What is Wei An, M.D.'s NPI number?
Wei An, M.D.'s National Provider Identifier (NPI) is 1942576947, issued on Mar 24, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Wei An, M.D. located?
The NPPES record lists a practice address at 836 Farmington Ave Ste 207, West Hartford, CT, 06119. Phone: (860) 232-9911. Providers update this record themselves, so call before visiting.
How can I verify Wei An, M.D.'s license?
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 Wei An, M.D. prescribe under Medicare Part D?
In 2024, Wei An, M.D. had 1,509 Medicare Part D claims for 296 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
What is Wei An, M.D.'s Medicare quality score?
The 2023 MIPS final score is 79.5 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), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.