Active NPI
Ilya Y Lantsberg, MD
- Internal Medicine Physician
- Great Neck, NY
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- 240171
- Practice address
- 221 Middle Neck Rd Apt 6K
Great Neck, NY 11021-1129 - Phone
- (718) 809-1630
- NPI assigned
- Sep 13, 2006
- Last updated
- Aug 24, 2026
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | MD442687 | PA | |
| Internal Medicine Physician | 207R00000X | 240171 | NY | Primary |
| Critical Care Medicine (Internal Medicine) Physician | 207RC0200X | 240171 | NY |
Addresses
Primary practice location
221 Middle Neck Rd Apt 6K
Great Neck, NY 11021-1129
Mailing address
221 Middle Neck Rd Apt 6K
Great Neck, NY 11021-1129
Phone (718) 809-1630
Other practice location 1
751 Liberty St
Meadville, PA 16335-2559
Phone (814) 333-5140
Other names 1
- Dr. Ilya Y Seleznev
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in NY, PA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Hospitalist
- Education
- State University of New York Downstate Medical Center, 2003
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
- Meadville Medical Center
Practice addresses (Care Compare)
751 Liberty St
Meadville, PA 16335-2559
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Excela Health Physician Practices, Inc. | Current | Accepting new patients | |
| Meadville Medical Center | Current | Accepting new patients | |
| Good Samaritan Hospital Medical Center | Current | Accepting new patients | |
| Meadville Clinical Pathologists, Inc | Current | Accepting new patients | |
| Good Samaritan Hospital Medical | Critical Care Medicine | Current | Accepting new patients |
| Apogee Medical Group of Pennsylvania PC | Internal Medicine | Current | Accepting new patients |
| Meadville Medical Center | Internal Medicine | Current | Accepting new patients |
| Meadville Medical Center | Current | Accepting new patients | |
| Apogee Medical Group of Pennsylvania PC | Internal Medicine | Current | Accepting new patients |
| Excela Health Physician Practices, Inc. | Current | Accepting new patients | |
| Excela Health Physician Practices, Inc | Current | Accepting new patients | |
| Apogee Medical Group, New York, PC | Internal Medicine | Current | Accepting new patients |
| Meadville Medical Center | Past | Accepting new patients |
Locations
15059 N Scottsdale Rd
Ste 600
Scottsdale, AZ 85254
Phone (602) 778-3601
515 Main St
Olean, NY 14760
Phone (716) 373-2600
830 Washington St
Watertown, NY 13601
Phone (315) 785-4000
1000 Montauk Hwy
West Islip, NY 11795
Phone (516) 705-2689
100 Hospital Ave
Dubois, PA 15801
Phone (814) 375-2040
532 W Pittsburgh St
Greensburg, PA 15601
Phone (724) 832-4000
1086 Franklin St
Johnstown, PA 15905
Phone (610) 250-4540
1034 Grove St
Meadville, PA 16335
Phone (814) 333-5728
751 Liberty St
Meadville, PA 16335
Phone (814) 333-5081
751 Liberty St
Slp Lab
Meadville, PA 16335
Phone (814) 333-5174
Networks
- Healthfirst Medicare Network H5989
- Healthfirst Medicare Network H1722
- Healthfirst Medicare Network H9678
- Healthfirst Medicare Network H3359
Interoperability endpoints
- ilantsberg@direct.excelahealth.org
Organizations & group practices 14
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
- Physician Assistant
- West Islip, NY
- NPI 1518901180
-
- Internal Medicine Physician
- Scottsdale, AZ
- NPI 1568633535
PA
-
dba Excela Health Cardiology
- Cardiovascular Disease Physician
- Greensburg, PA
- NPI 1821225202
-
dba Meadville Sleep Lab
- Sleep Medicine (Internal Medicine) Physician
- Meadville, PA
- NPI 1295145787
-
- Multi-Specialty Clinic/Center
- Meadville, PA
- NPI 1629633573
Internal Medicine
-
- Internal Medicine Physician
- Brooklyn, NY
- NPI 1639373194
-
- Critical Care Medicine (Internal Medicine) Physician
- West Islip, NY
- NPI 1548501620
-
- Internal Medicine Physician
- Scottsdale, AZ
- NPI 1649227166
-
dba Walk-in Clinic
- Family Medicine Physician
- Greensburg, PA
- NPI 1235004193
-
dba Excela Health Mt. Pleasant Family Medicine
- Family Medicine Physician
- Mt Pleasant, PA
- NPI 1669720868
-
- Anatomic Pathology & Clinical Pathology Physician
- Meadville, PA
- NPI 1528048436
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Meadville, PA
- NPI 1942276423
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1158105600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1787529600000",
"number": "1306941711",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "221 MIDDLE NECK RD APT 6K",
"city": "GREAT NECK",
"state": "NY",
"postal_code": "110211129",
"telephone_number": "718-809-1630"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "221 MIDDLE NECK RD APT 6K",
"city": "GREAT NECK",
"state": "NY",
"postal_code": "110211129",
"telephone_number": "718-809-1630"
}
],
"practiceLocations": [
{
"address_1": "751 Liberty St",
"address_purpose": "LOCATION",
"city": "Meadville",
"state": "PA",
"postal_code": "163352559",
"country_code": "US",
"telephone_number": "814-333-5140",
"fax_number": "814-333-5197",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "LANTSBERG",
"first_name": "ILYA",
"middle_name": "Y",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-09-13",
"last_updated": "2026-08-24",
"certification_date": "2026-08-24",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "PA",
"license": "MD442687",
"primary": false
},
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "NY",
"license": "240171",
"primary": true
},
{
"code": "207RC0200X",
"taxonomy_group": "",
"desc": "Internal Medicine, Critical Care Medicine",
"state": "NY",
"license": "240171",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": [
{
"first_name": "ILYA",
"last_name": "SELEZNEV",
"middle_name": "Y",
"prefix": "DR.",
"credential": "MD",
"code": "1",
"type": "Former Name"
}
]
}
Other providers in Great Neck, NY
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 24, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.