Doctor profile · Federal record

Dr. Themistoklis Nissirios, MD

Cardiovascular Disease Physician (CMS: Cardiovascular Disease (Cardiology)) · Monroe, NY

  • NPI 1194925370
  • Accepts Medicare
  • 23 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
855 State Route 17M
Monroe, NY 109501600
(845) 703-6999
fax (845) 703-6297
Mailing address
155 Crystal Run RD
Middletown, NY 109414028

Credentials & registration

NPPES · NUCC
NPI registered
July 2007 — 19 yrs on file
Profile last updated
October 12, 2020
Year of graduation
2003 — 23 yrs since
Specialty taxonomy
207RC0000X — NUCC code
State license (1)
New York #253483

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1194925370. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
4,162
Distinct HCPCS
10
Medicare allowed
$425,468
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 896 639 $139
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 457 418 $16
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 282 278 $217
99204 New patient office or other outpatient visit, 45-59 minutes 244 244 $183
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 214 121 $127
36415 Insertion of needle into vein for collection of blood sample 181 145 $8
J2785 Injection, regadenoson, 0.1 mg 173 40 $54
80053 Blood test, comprehensive group of blood chemicals 142 133 $10
93880 Ultrasound of both sides of head and neck blood flow 137 137 $215
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 135 128 $8

In context: peer comparison

Among 2 peers in this city , average services per provider: 113. This provider delivers 37× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$230
Transactions
14
Manufacturers
11
Payer (manufacturer) Industry Txns Amount
Novartis Pharmaceuticals Corporation 3 $52.73
Amgen Inc. 2 $30.57
HEARTFLOW, INC. 1 $21.36
Actelion Pharmaceuticals US, Inc. 1 $18.08
Kiniksa Pharmaceuticals International, plc 1 $16.78
Esperion Therapeutics, Inc. 1 $16.28
Boston Scientific Corporation 1 $16.14
Janssen Pharmaceuticals, Inc 1 $15.10
PFIZER INC. 1 $14.54
E.R. Squibb & Sons, L.L.C. 1 $14.51
Boehringer Ingelheim Pharmaceuticals, Inc. 1 $13.60

By nature of payment

Food and Beverage
$230

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
4,401
Patients
1,846
Total drug cost
$562,472
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 591 252 $7,830
Metoprolol Succinate Generic 561 232 $14,936
Amlodipine Besylate Generic 546 223 $5,820
Rosuvastatin Calcium Generic 503 228 $12,128
Eliquis (Apixaban) Brand 406 137 $485,421
Furosemide Generic 237 106 $1,845
Lisinopril Generic 212 83 $2,422
Carvedilol Generic 209 86 $3,347
Metoprolol Tartrate Generic 197 80 $2,592
Torsemide Generic 182 92 $5,813

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Themistoklis Nissirios's medical specialty?
Dr. Themistoklis Nissirios practices Cardiovascular Disease Physician in Monroe, NY.
Where does Dr. Themistoklis Nissirios practice?
Dr. Themistoklis Nissirios practices at 855 State Route 17M, Monroe, NY 109501600. Office phone: 8457036999.
What is Dr. Themistoklis Nissirios's NPI?
Dr. Themistoklis Nissirios's National Provider Identifier (NPI) is 1194925370, issued by NPPES.
Does Dr. Themistoklis Nissirios accept Medicare assignment?
Yes. Dr. Themistoklis Nissirios accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Themistoklis Nissirios commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); 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.