Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Costas Frousios, M.D.
Pediatrics Physician in Astoria, NY · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821159419
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Registry record
Entity type Individual (Type 1)
Name Dr. Costas Frousios
Credential M.D.
Sex Male
Practice address 29 22 30 Th Ave, Astoria, NY, 11102
Phone (718) 545-2500
Fax (718) 777-1369
Enumeration date Dec 13, 2006
Last updated in NPPES Jul 8, 2007
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 |
|---|---|---|---|
| 203246-1 | Other | NY | LICENSE NUMBER |
| 203246-B29 | Other | NY | HEALTHFIRST |
| 267422 | Other | NY | WELLCARE |
| 01659416 | Medicaid | NY | - |
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 Costas Frousios?
Costas Frousios is registered in NPPES with the primary taxonomy of Pediatrics Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.