John Chris Alexopoulos, M.D.
Individual provider Active NPI Internal Medicine Physician · Northport, NY
NPI 1306013446 · NPPES record last updated May 6, 2026
Key facts
- NPI
- 1306013446
- Entity type
- Individual (NPI type 1)
- Primary specialty
- Internal Medicine Physician 207R00000X
- License
- 4301099567 (MI)
- Practice address
- 79 Middleville Rd
Northport, NY 11768-2296 - Phone
- (631) 261-4400
- Fax
- (631) 863-4878
- NPI assigned
- May 8, 2008
- Sex
- Male
- Sole proprietor
- No
Medicare participation
- Medicare fee-for-service enrollment
- Enrolled in NY
- Eligible to order & refer
- Part B services: Yes · DME: Yes · Home health: Yes · Power mobility devices: Yes · Hospice: Yes
Medicare enrollment records
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20120113000745 | NY | Order and Referring Only - Internal Medicine |
5395912307 |
National Provider Directory
- Medicare enrollment (NPD)
- Yes
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 4301099567 | MI | MD | Hospitalist Physician |
Specialties & licenses
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | 4301099567 | MI | Yes |
| Hospitalist Physician | 208M00000X | 4301099567 | MI |
Addresses
Primary practice location
79 Middleville Rd
Northport, NY 11768-2296
Mailing address
79 Middleville Rd
Northport, NY 11768-2296
Phone (631) 261-4400
Other providers in Northport, NY
- Mark Albert
- Dale Alessi
- Alexander Acupuncture
- Cherian Alexander
- Jack Alexander
- Bisma Fatima Ali
- Tazkira Ali
- Asma Saeed Alizai
- Germaine Cyla Allison
- Laurie Alonso
All providers in Northport, NY · Internal Medicine Physician in New York
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Record last updated by the provider on May 6, 2026. Information in NPPES is self-reported and not verified by CMS.
- NUCC Health Care Provider Taxonomy: specialty names.
- Medicare Fee-For-Service Public Provider Enrollment (CMS/PECOS): enrollments, PAC IDs and benefit reassignments.
- Order and Referring (CMS).
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.