Ronald D Sager M D Inc
Ronald D Sager M D Inc is a healthcare organization registered as Addiction Psychiatry Physician in Calabasas, CA, holding Type 2 (organization) NPI 1518359421 since 2015. The authorized official on file is Samuel Jiwanmall, Billing Cooridnator.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1518359421 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Ronald D Sager M D Inc |
| Practice address | 4505 LAS VIRGENES RD STE 202, Calabasas, CA, 91302 |
| Phone | 8187833835 |
| Enumeration date | 2015-03-02 |
| Last updated in NPPES | 2024-08-22 |
Authorized official
| Name | Samuel Jiwanmall |
|---|---|
| Title | Billing Cooridnator |
| Phone | 8188546971 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 2084P0802X | Addiction Psychiatry Physician | Primary | — | — |
Copy-ready billing details
Provider: Ronald D Sager M D Inc NPI: 1518359421 Taxonomy: 2084P0802X (Addiction Psychiatry Physician) Address: 4505 LAS VIRGENES RD STE 202, Calabasas, CA, 91302
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1740836303 | Btx Group, Inc. | Organization | Nurse Practitioner | Calabasas, CA |
| 1104505528 | Jessica Cohen | Individual | Marriage & Family Therapist | Calabasas, CA |
| 1831878263 | Melissa Scagnelli | Individual | Clinical Social Worker | Calabasas, CA |
| 1538931555 | Hifza Murtuza | Individual | Behavior Analyst | Calabasas, CA |
Verify this record
Cross-check NPI 1518359421 against the authoritative CMS record: view Ronald D Sager M D Inc on the official NPPES registry .
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. Read the full guide or validate an NPI number.
Frequently asked questions
What type of organization is Ronald D Sager M D Inc?
What is a Type 2 NPI?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2024-08-22.