Christin A. Knowlton, M.D.
Radiation Oncology Physician · New Haven, CT
Christin A. Knowlton, M.D. is a radiation oncology physician with a practice address in New Haven, Connecticut, and NPI 1679733422, issued on Jun 16, 2008. Check the license (Connecticut 049596, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Christin A. Knowlton
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- 049596 CT
MT189860 PA
Self-reported in NPPES; status is on the state search - Practice location
- 1450 Chapel St, New Haven, CT 06511
- Phone
- (203) 789-3131
- Enumerated
- Jun 16, 2008
- Record last updated
- Jul 21, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (203) 789-3133
- Medicare enrollment
- Enrolled (PECOS I20110824000020); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Stony Brook, School Of Medicine, 2006
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 1450 Chapel St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Pirjo Aalto-Fischer, LCSWClinical Social Worker1225473655
- Elie AbdelnourPsychiatry Physician1790346070
- Katherine AdamsSpeech-Language Pathologist1023851821
- Oluwatosin Adeyemo, M.D. , MPHObstetrics Physician1447696844
- Elizabeth Ahmed, M.D.Family Medicine Physician1376551879
- Sohee Ahn, PHARMDPharmacist1649894387
Verify Christin A. Knowlton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 049596Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
60% fewer Medicare Part D claims than the average radiation oncology physician in 2024
53 Medicare Part D claims for 39 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Mometasone Furoate27 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): 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).
Bills Medicare through one group practice
- Yale UniversityNew Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Radiation Oncology Physician providers in Connecticut
There are 82 radiation oncology physician records in Connecticut.
Other radiation oncology physician records in Connecticut
- William Aberizk, MDGroton, CT1407173115
- Yi An, MDNew Haven, CT1669714739
- Sanjay Aneja, MDNew Haven, CT1699119628
- Emily Anstadt LutzHartford, CT1295222784
- Joseph Bargellini, M.D.New Milford, CT1619062494
- Pamela Bartolotta, RADIOGRAPHERNiantic, CT1629753116
- Helaine Bertsch, MDHartford, CT1013909993
- Ranjit Bindra, M.D., PH.D.New Haven, CT1326206855
- Jeffrey Bitterman, MDBristol, CT1922061134
- Adriana Blakaj, M.D., PH.D.Hartford, CT1831584614
Common questions
What is Christin A. Knowlton, M.D.'s NPI number?
Christin A. Knowlton, M.D.'s National Provider Identifier (NPI) is 1679733422, issued on Jun 16, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Christin A. Knowlton, M.D. located?
The NPPES record lists a practice address at 1450 Chapel St, New Haven, CT, 06511. Phone: (203) 789-3131. Providers update this record themselves, so call before visiting.
How can I verify Christin A. Knowlton, M.D.'s license?
NPPES lists Connecticut license number 049596, 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 Christin A. Knowlton, M.D. prescribe under Medicare Part D?
In 2024, Christin A. Knowlton, M.D. had 53 Medicare Part D claims for 39 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Christin A. Knowlton, M.D.'s MIPS final 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), 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.