Doctor profile · Federal record

Dr. Eric Ma, M.D.

Hematology & Oncology Physician (CMS: Medical Oncology) · Danbury, CT

  • NPI 1205078862
  • Accepts Medicare
  • MIPS 89.1 / 100 · 2023
  • 28 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
24 Hospital Ave
Danbury, CT 068106099
(203) 739-7000

Credentials & registration

NPPES · NUCC
NPI registered
March 2009 — 17 yrs on file
Profile last updated
August 17, 2018
Year of graduation
1998 — 28 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
Connecticut #61788

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1205078862. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,285
Distinct HCPCS
10
Medicare allowed
$185,148
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 906 246 $137
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 569 148 $8
36415 Insertion of needle into vein for collection of blood sample 286 153 $8
99213 Established patient office or other outpatient visit, 20-29 minutes 159 102 $96
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99 37 $84
81002 Urinalysis, manual test 78 15 $3
99204 New patient office or other outpatient visit, 45-59 minutes 36 36 $178
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 36 33 $138
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 36 32 $183
99205 New patient office or other outpatient visit, 60-74 minutes 26 26 $235

In context: peer comparison

Among 6 peers in Danbury Hematology & Oncology Physician, average services per provider: 141. This provider delivers 16× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,783
Transactions
95
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Novartis Pharmaceuticals Corporation 13 $289.68
Abbvie INC. 12 $272.92
Janssen Biotech, INC. 11 $262.66
Pfizer INC. 7 $204.81
AstraZeneca Pharmaceuticals Lp 6 $168.43
Daiichi Sankyo INC. 8 $141.49
Merck Sharp & Dohme LLC 6 $140.45
Jazz Pharmaceuticals INC. 5 $111.51
E.R. Squibb & Sons, L.L.C. 4 $105.42
GlaxoSmithKline, LLC. 4 $103.74
Celgene Corporation 4 $100.33
Incyte Corporation 5 $97.23
Sobi, INC 4 $76.51
Lilly USA, LLC 3 $66.64
Eisai INC. 3 $58.21

By nature of payment

Food and Beverage
$2,683
Education
$100

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
817
Patients
273
Total drug cost
$3,050,640
Drug Type Claims Patients Total cost
Revlimid (Lenalidomide) Brand 99 12 $1,681,738
Ondansetron Hcl Generic 86 46 $1,572
Dexamethasone Generic 76 22 $1,611
Acyclovir Generic 74 27 $1,742
Hydroxyurea Generic 71 18 $3,084
Xtandi (Enzalutamide) Brand 64 12 $931,430
Xarelto (Rivaroxaban) Brand 52 16 $64,966
Eliquis (Apixaban) Brand 45 13 $55,183
Prochlorperazine Maleate Generic 44 29 $635
Prednisone Generic 43 11 $324

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Eric Ma's medical specialty?
Dr. Eric Ma practices Hematology & Oncology Physician in Danbury, CT.
Where does Dr. Eric Ma practice?
Dr. Eric Ma practices at 24 Hospital Ave, Danbury, CT 068106099. Office phone: 2037397000.
What is Dr. Eric Ma's NPI?
Dr. Eric Ma's National Provider Identifier (NPI) is 1205078862, issued by NPPES.
Does Dr. Eric Ma accept Medicare assignment?
Yes. Dr. Eric Ma accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Eric Ma commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (HCPCS 85025); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.