Active NPI
Ronald A. Primis, M.D.
- Hematology & Oncology Physician
- Rockville Centre, NY
National Provider Identifier
1730188343
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Hematology & Oncology Physician
- License
- 094624
- Practice address
- 242 Merrick Rd
Suite 301
Rockville Centre, NY 11570-5254 - Phone
- (516) 536-1455
- Fax
- (516) 536-1598
- NPI assigned
- Jul 15, 2005
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Hematology & Oncology Physician | 207RH0003X | 094624 | NY | Primary |
Addresses
Primary practice location
242 Merrick Rd
Suite 301
Rockville Centre, NY 11570-5254
Mailing address
242 Merrick Rd
Suite 301
Rockville Centre, NY 11570-5254
Phone (516) 536-1455
Other identifiers 2
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 00385617 | Medicaid | NY | |
| W15181 | Other | GROUP# |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 094624 | NY | MD | Hematology & Oncology Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1121385600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1730188343",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "242 MERRICK RD",
"address_2": "SUITE 301",
"city": "ROCKVILLE CENTRE",
"state": "NY",
"postal_code": "115705254",
"telephone_number": "516-536-1455",
"fax_number": "516-536-1598"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "242 MERRICK RD",
"address_2": "SUITE 301",
"city": "ROCKVILLE CENTRE",
"state": "NY",
"postal_code": "115705254",
"telephone_number": "516-536-1455",
"fax_number": "516-536-1598"
}
],
"practiceLocations": [],
"basic": {
"last_name": "PRIMIS",
"first_name": "RONALD",
"middle_name": "A.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2005-07-15",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "207RH0003X",
"taxonomy_group": "",
"desc": "Internal Medicine, Hematology & Oncology",
"state": "NY",
"license": "094624",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "00385617",
"state": "NY"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "GROUP#",
"identifier": "W15181",
"state": null
}
],
"endpoints": [],
"other_names": []
}Other providers in Rockville Centre, NY
- Preferred Home Services Inc,.
- Maria Preston, CASE MANAGEMENT
- Christine Teresa Prete, LMFT
- Kathleen Mary Preziosa, L.M.T
- Eric M Price, MD
- Prine Health Medical Group, PLLC
- Jonathan Procter, PHD
- Professional Occupational & Physical Therapy, PLLC
- Professional Occupational & Physical Therapy, PLLC
- Professional Orthopedic and Sports Physical Therapy, PC
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.