Doctor profile · Federal record

Dr. Stephen Fleet, M.D.

Cardiovascular Disease Physician (CMS: Cardiovascular Disease (Cardiology)) · Cardiovascular Disease Physician · Greenfield, MA

  • NPI 1588764948
  • Accepts Medicare
  • 49 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
164 High St
Greenfield, MA 013012613
(413) 794-2273
fax (413) 773-2841
Mailing address
280 Chestnut St Fl 2
Springfield, MA 011991001

Credentials & registration

NPPES · NUCC
NPI registered
September 2006 — 20 yrs on file
Profile last updated
January 18, 2023
Year of graduation
1977 — 49 yrs since
Specialty taxonomy
207RC0000X — NUCC code
State licenses (2)
Massachusetts #47690 · New Hampshire #20714
Medicaid (2)
MA #110052260A · MA #3102424

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1588764948. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,577
Distinct HCPCS
10
Medicare allowed
$97,119
HCPCS Description Services Patients Avg allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 1,413 1,039 $8
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 464 442 $15
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 235 234 $69
99214 Established patient office or other outpatient visit, 30-39 minutes 90 70 $128
99204 New patient office or other outpatient visit, 45-59 minutes 78 78 $166
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 66 64 $83
A9500 Technetium tc-99m sestamibi, diagnostic, per study dose 54 27 $121
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 44 43 $196
93246 Heart rhythm recording of continous external ekg over 8-15 days 38 38 $13
93248 Heart rhythm review and interpretation of continous external ekg over 8-15 days 35 35 $26

In context: peer comparison

Among 3 peers in this city , average services per provider: 200. This provider delivers 13× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$78
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
PFIZER INC. 1 $78.48

By nature of payment

Food and Beverage
$78

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
296
Patients
99
Total drug cost
$61,018
Drug Type Claims Patients Total cost
Metoprolol Succinate Generic 69 41 $1,721
Eliquis (Apixaban) Brand 67 24 $56,652
Metoprolol Tartrate Generic 45 23 $527
Losartan Potassium Generic 23 0 $443
Furosemide Generic 18 0 $70
Carvedilol Generic 17 0 $222
Atorvastatin Calcium Generic 16 11 $472
Amlodipine Besylate Generic 14 0 $171
Rosuvastatin Calcium Generic 14 0 $376
Diltiazem 24hr Er (Cd) (Diltiazem Hcl) Brand 13 0 $364

Frequently asked questions

Auto-generated from federal data
What is Dr. Stephen Fleet's medical specialty?
Dr. Stephen Fleet practices Cardiovascular Disease Physician in Greenfield, MA.
Where does Dr. Stephen Fleet practice?
Dr. Stephen Fleet practices at 164 High St, Greenfield, MA 013012613. Office phone: 4137942273.
What is Dr. Stephen Fleet's NPI?
Dr. Stephen Fleet's National Provider Identifier (NPI) is 1588764948, issued by NPPES.
Does Dr. Stephen Fleet accept Medicare assignment?
Yes. Dr. Stephen Fleet accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stephen Fleet commonly perform?
Top Medicare-reported procedures in 2023: Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS 93000); Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (HCPCS 93306). Source: CMS Medicare Physician & Other Practitioners file.