Doctor profile · Federal record

Dr. Nicholas Stroumbakis, M.D.

Urology Physician (CMS: Urology) · Greenwich, CT

  • NPI 1871597641
  • Accepts Medicare
  • MIPS 71.7 / 100 · 2023
  • 38 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
49 Lake Ave, # 21
Greenwich, CT 068304501
(203) 869-1285
fax (203) 869-1959

Credentials & registration

NPPES · NUCC
NPI registered
June 2005 — 21 yrs on file
Profile last updated
February 20, 2009
Year of graduation
1988 — 38 yrs since
Specialty taxonomy
208800000X — NUCC code
State license (1)
Connecticut #035077
Medicaid
CT #1350777

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1871597641. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
9,877
Distinct HCPCS
10
Medicare allowed
$362,973
HCPCS Description Services Patients Avg allowed
J9030 Bcg live intravesical instillation, 1 mg 3,142 19 $3
J9155 Injection, degarelix, 1 mg 2,401 11 $4
81002 Urinalysis, manual test 1,330 759 $3
51798 Ultrasound measurement of bladder capacity after voiding 681 440 $12
99213 Established patient office or other outpatient visit, 20-29 minutes 602 470 $97
99214 Established patient office or other outpatient visit, 30-39 minutes 601 410 $136
52000 Diagnostic exam of bladder and urethra using an endoscope 204 168 $264
J9217 Leuprolide acetate (for depot suspension), 7.5 mg 123 20 $169
51720 Instillation of anti-cancer drug into bladder 120 25 $96
99204 New patient office or other outpatient visit, 45-59 minutes 105 105 $178

In context: peer comparison

Among 1 peers in Greenwich Urology Physician, average services per provider: 411. This provider delivers 24× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,877
Patients
1,066
Total drug cost
$375,876
Drug Type Claims Patients Total cost
Tamsulosin Hcl Generic 758 279 $18,625
Finasteride Generic 734 250 $14,176
Myrbetriq (Mirabegron) Brand 245 98 $257,106
Dutasteride Generic 211 67 $13,591
Potassium Citrate ER (Potassium Citrate) Brand 192 60 $31,097
Alfuzosin Hcl ER (Alfuzosin Hcl) Brand 147 47 $6,059
Levofloxacin Generic 95 79 $447
Silodosin Generic 86 31 $12,636
Oxybutynin Chloride ER (Oxybutynin Chloride) Brand 84 40 $2,935
Estradiol Generic 79 36 $6,712

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Nicholas Stroumbakis's medical specialty?
Dr. Nicholas Stroumbakis practices Urology Physician in Greenwich, CT.
Where does Dr. Nicholas Stroumbakis practice?
Dr. Nicholas Stroumbakis practices at 49 Lake Ave, Greenwich, CT 068304501. Office phone: 2038691285.
What is Dr. Nicholas Stroumbakis's NPI?
Dr. Nicholas Stroumbakis's National Provider Identifier (NPI) is 1871597641, issued by NPPES.
Does Dr. Nicholas Stroumbakis accept Medicare assignment?
Yes. Dr. Nicholas Stroumbakis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nicholas Stroumbakis commonly perform?
Top Medicare-reported procedures in 2023: Bcg live intravesical instillation, 1 mg (HCPCS J9030); Injection, degarelix, 1 mg (HCPCS J9155); Urinalysis, manual test (HCPCS 81002). Source: CMS Medicare Physician & Other Practitioners file.