Jason R. Haldas, M.D.
Hematology & Oncology Physician · New London, CT
Jason R. Haldas, M.D. is a hematology & oncology physician with a practice address in New London, Connecticut, and NPI 1275532541, issued on Jul 19, 2005. Check the license (Connecticut 040056, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Jason R. Haldas
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 040056 CT
Self-reported in NPPES; status is on the state search - Practice location
- 3 Shaws CV, New London, CT 06320
- Phone
- (860) 439-1770
- Enumerated
- Jul 19, 2005
- Record last updated
- Aug 23, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (860) 447-2854
- Medicaid ID
- 001400564 CT
- Medicare enrollment
- Enrolled (PECOS I20110502000215); accepts Medicare assignment
- Medical or professional school
- University Of Virginia School Of Medicine, 1996
- Entity
- Type 1 · individual
Also registered at 3 Shaws CV
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kayla Ashton, NPWomen's Health Nurse Practitioner1992305437
- David Crawley, M.D.Urology Physician1225324239
- Richard Hellman, M.D.Hematology & Oncology Physician1821097601
- Courtney Lasky, CNMMidwife1588304463
- Samantha Lee, MDObstetrics & Gynecology Physician1457857419
- Anthony Quinn, MDSpecialist1053319624
Verify Jason R. Haldas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 040056Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average hematology & oncology physician in 2024
2,147 Medicare Part D claims for 300 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 232 claims were for opioids.
Most prescribed
- Prednisone222 claims
- Eliquis158 claims
- Oxycodone Hcl149 claims
- Abiraterone Acetate137 claims
- Lenalidomide83 claims
- Xarelto74 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 MIPS final score for 2023 (Medicare payment program): 93.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Northeast Medical Group IncWaterford, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hematology & Oncology Physician providers in Connecticut
There are 198 hematology & oncology physician records in Connecticut.
Other hematology & oncology physician records in Connecticut
- Martin Abrams, M.D.Danbury, CT1073507851
- Jennifer Afranie-Sakyi, MDNew Haven, CT1902369358
- Luis E. Aguirre, MDNew Haven, CT1497276240
- Todd Alekshun, M.D.Hartford, CT1558495689
- Ash AlpertNew Haven, CT1689084071
- Susan Alsamarai, MDMeriden, CT1174734768
- Biree Andemariam, MDFarmington, CT1396935136
- Matthew AustinNew Haven, CT1730591397
- Ravneet Bajwa, MDDanbury, CT1578926945
- William Baker, M.D.Farmington, CT1710923073
Common questions
What is Jason R. Haldas, M.D.'s NPI number?
Jason R. Haldas, M.D.'s National Provider Identifier (NPI) is 1275532541, issued on Jul 19, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Jason R. Haldas, M.D. located?
The NPPES record lists a practice address at 3 Shaws CV, New London, CT, 06320. Phone: (860) 439-1770. Providers update this record themselves, so call before visiting.
How can I verify Jason R. Haldas, M.D.'s license?
NPPES lists Connecticut license number 040056, 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 Jason R. Haldas, M.D. prescribe under Medicare Part D?
In 2024, Jason R. Haldas, M.D. had 2,147 Medicare Part D claims for 300 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Jason R. Haldas, M.D.'s MIPS final score?
The 2023 MIPS final score is 93.3 of 100. 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.