Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Nicholas Stroumbakis, M.D.
Urology Physician in Greenwich, CT · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1871597641
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Registry record
Entity type Individual (Type 1)
Name Dr. Nicholas Stroumbakis
Credential M.D.
Sex Male
Practice address 49 Lake Ave, # 21, Greenwich, CT, 06830
Phone (203) 869-1285
Fax (203) 869-1959
Enumeration date Jun 9, 2005
Last updated in NPPES Feb 20, 2009
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1350777 | Medicaid | CT | - |
| 2036918 | Other | - | AETNA |
| P437136 | Other | - | OXFORD |
| 010035077CT01 | Other | - | BC/BS |
| 020231 | Other | - | HEALTHNET |
| 340011882 | Other | - | RAILROAD MEDICARE |
| 035077 | Other | - | CONNETICARE |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Nicholas Stroumbakis?
Nicholas Stroumbakis is registered in NPPES with the primary taxonomy of Urology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Stephen Salzer Otolaryngology Physician · Greenwich, CT NPI 1508860859 Steven Bramwit Otolaryngology Physician · Greenwich, CT NPI 1730183146 Michelle Marrinan Otology & Neurotology Physician · Greenwich, CT NPI 1598761629 Michele Bergen Oral and Maxillofacial Surgery (Dentist) · Greenwich, CT NPI 1215929286 James Borges Specialist · Greenwich, CT NPI 1073506705 Greenwich Urological Assoc P C Urology Physician · Greenwich, CT NPI 1952387615 Erez Salik Diagnostic Radiology Physician · Greenwich, CT NPI 1306819149 Linda Latrenta Diagnostic Radiology Physician · Greenwich, CT NPI 1861450686
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-02-20.