Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. John L Kefalos, M.D.
Neurology Physician in Lynbrook, NY · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1619968161
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Registry record
Entity type Individual (Type 1)
Name Dr. John L Kefalos
Credential M.D.
Sex Male
Practice address 777 Sunrise Hwy, Suite 200, Lynbrook, NY, 11563
Phone (516) 887-3516
Fax (516) 887-0331
Enumeration date Nov 3, 2005
Last updated in NPPES May 19, 2022
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 |
|---|---|---|---|
| 152638 | Other | NY | HIP |
| 62259790 | Other | NY | MULTIPLAN |
| 640026 | Other | NY | HEALTHCARE PARTNERS |
| AS1069 | Other | NY | OXFORD |
| 112573413 | Other | NY | CCN,CHO HUM,FRSTHELTH,HOR |
| 68866 | Other | NY | PHCS |
| AD00676 | Other | NY | MDNY |
| 01572861 | Medicaid | NY | - |
| NS0001847 | Other | NY | SELECT PRO |
| 1917532005 | Other | NY | CIGNA |
| OC3470 | Other | NY | HEALTHNET |
| CPNN1526383 | Other | NY | WORKERS COMP NO FAULT |
| 112573413 | Other | NY | MAG,OHP,UHC,EMPIRE |
| 3099813 | Other | NY | GHI |
| 000000056378 | Other | NY | GHI HMO |
| 613 | Other | NY | VYTRA |
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 John Kefalos?
John Kefalos is registered in NPPES with the primary taxonomy of Neurology 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 →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-05-19.