Doctor profile · Federal record

Dr. Jason Haldas, M.D.

Hematology & Oncology Physician (CMS: Hematology/Oncology) · New London, CT

  • NPI 1275532541
  • Accepts Medicare
  • MIPS 84.3 / 100 · 2023
  • 30 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3 Shaws Cv, Suite 201
New London, CT 063204952
(860) 439-1770
fax (860) 447-2854

Credentials & registration

NPPES · NUCC
NPI registered
July 2005 — 21 yrs on file
Profile last updated
August 23, 2010
Year of graduation
1996 — 30 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
Connecticut #040056
Medicaid
CT #001400564

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1275532541. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,267
Distinct HCPCS
10
Medicare allowed
$134,218
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 699 224 $102
99213 Established patient office or other outpatient visit, 20-29 minutes 220 171 $69
99215 Established patient office or other outpatient visit, 40-54 minutes 128 70 $147
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 64 39 $83
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 48 47 $181
99205 New patient office or other outpatient visit, 60-74 minutes 44 44 $186
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 18 14 $52
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 17 17 $136
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 15 12 $124
99204 New patient office or other outpatient visit, 45-59 minutes 14 14 $139

In context: peer comparison

Among 1 peers in New London Hematology & Oncology Physician, average services per provider: 126. This provider delivers 10× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,033
Patients
296
Total drug cost
$1,018,226
Drug Type Claims Patients Total cost
Prednisone Generic 150 39 $955
Eliquis (Apixaban) Brand 139 31 $113,374
Oxycodone Hcl Generic 113 29 $1,652
Abiraterone Acetate Generic 109 20 $375,420
Xarelto (Rivaroxaban) Brand 83 24 $84,574
Prochlorperazine Maleate Generic 58 36 $1,108
Dexamethasone Generic 49 28 $847
Hydroxyurea Generic 47 13 $2,110
Anastrozole Generic 46 14 $1,556
Gabapentin Generic 45 11 $863

Frequently asked questions

Auto-generated from federal data
What is Dr. Jason Haldas's medical specialty?
Dr. Jason Haldas practices Hematology & Oncology Physician in New London, CT.
Where does Dr. Jason Haldas practice?
Dr. Jason Haldas practices at 3 Shaws Cv, New London, CT 063204952. Office phone: 8604391770.
What is Dr. Jason Haldas's NPI?
Dr. Jason Haldas's National Provider Identifier (NPI) is 1275532541, issued by NPPES.
Does Dr. Jason Haldas accept Medicare assignment?
Yes. Dr. Jason Haldas accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jason Haldas commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.