Active NPI
Marvin I Retsky, MD
- Anatomic Pathology & Clinical Pathology Physician
- Van Nuys, CA
National Provider Identifier
1851350433
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Anatomic Pathology & Clinical Pathology Physician
- License
- G13740
- Practice address
- 15107 Vanowen St
Van Nuys, CA 91405-4542 - Phone
- (818) 902-2961
- NPI assigned
- Mar 21, 2006
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Cytopathology Physician | 207ZC0500X | G13740 | CA | |
| Anatomic Pathology & Clinical Pathology Physician | 207ZP0102X | G13740 | CA | Primary |
Addresses
Primary practice location
15107 Vanowen St
Van Nuys, CA 91405-4542
Mailing address
PO Box 10076
Van Nuys, CA 91410-0076
Phone (805) 578-8300
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| G13740 | Medicaid | CA |
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 |
|---|---|---|---|
| G13740 | CA | MD | Cytopathology Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1142899200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757548800000",
"number": "1851350433",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 10076",
"city": "VAN NUYS",
"state": "CA",
"postal_code": "914100076",
"telephone_number": "805-578-8300",
"fax_number": "805-578-8950"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "15107 VANOWEN ST",
"city": "VAN NUYS",
"state": "CA",
"postal_code": "914054542",
"telephone_number": "818-902-2961"
}
],
"practiceLocations": [],
"basic": {
"last_name": "RETSKY",
"first_name": "MARVIN",
"middle_name": "I",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-03-21",
"last_updated": "2025-09-11",
"status": "A"
},
"taxonomies": [
{
"code": "207ZC0500X",
"taxonomy_group": "",
"desc": "Pathology, Cytopathology",
"state": "CA",
"license": "G13740",
"primary": false
},
{
"code": "207ZP0102X",
"taxonomy_group": "",
"desc": "Pathology, Anatomic Pathology & Clinical Pathology",
"state": "CA",
"license": "G13740",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "G13740",
"state": "CA"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Van Nuys, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.