Michael Karellas, M.D.
Urology Physician · New Haven, CT
Michael Karellas, M.D. is a urology physician with a practice address in New Haven, Connecticut, and NPI 1376671396, issued on Mar 1, 2007. Check the license on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Michael Karellas
- Credential
- M.D.
- Primary taxonomy
- Urology Physician 208800000X
- Practice location
- 800 Howard Ave, New Haven, CT 06519
- Phone
- (203) 737-6959
- Enumerated
- Mar 1, 2007
- Entity
- Type 1 · individual
Also registered at 800 Howard Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Christina Allen, MDOrthopaedic Surgery Physician1841242351
Verify Michael Karellas 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
52% more Medicare Part D claims than the average urology physician in 2024
2,063 Medicare Part D claims for 602 beneficiaries, against an average of 1,354 among the 9,936 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Tamsulosin Hcl562 claims
- Finasteride288 claims
- Myrbetriq192 claims
- Alfuzosin Hcl Er138 claims
- Gemtesa95 claims
- Ciprofloxacin Hcl78 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: 73.6 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).
2 hospital and facility affiliations
- St Alexius Medical CenterBismarck, ND
- Yale UniversityTrumbull, 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.
Urology Physician providers in Connecticut
There are 166 urology physician records in Connecticut.
Other urology physician records in Connecticut
- Syed Alam, MDNew Haven, CT1093202079
- Peter Albertsen, M.D.Farmington, CT1811992639
- Catherine Alonzo, M.D.Greenwich, CT1770802357
- Rudy Andriani, MDStamford, CT1629061957
- Joseph Antoci, M. D.Middlebury, CT1720042971
- Varnel AntoineHartford, CT1386237717
- Corlis Archer-Goode, M.D.New Britain, CT1437152360
- Angela Arlen, M.D.New Haven, CT1346457215
- Harvey Armel, M.D.Milford, CT1053312173
- Milton Armm, MDBridgeport, CT1679683965
Common questions
What is Michael Karellas, M.D.'s NPI number?
Michael Karellas, M.D.'s National Provider Identifier (NPI) is 1376671396, issued on Mar 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Michael Karellas, M.D. located?
The NPPES record lists a practice address at 800 Howard Ave, New Haven, CT, 06519. Phone: (203) 737-6959. Providers update this record themselves, so call before visiting.
How can I verify Michael Karellas, 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 Michael Karellas, M.D. prescribe under Medicare Part D?
In 2024, Michael Karellas, M.D. had 2,063 Medicare Part D claims for 602 beneficiaries; the average among urology physician prescribers was 1,354. Part D covers Medicare prescriptions only.
What is Michael Karellas, M.D.'s Medicare quality score?
The 2023 MIPS final score is 73.6 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.