Boris D Ratiner, MD, Inc
NPI 1700999117 · Rheumatology Physician · Tarzana, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Boris D Ratiner, MD, Inc is a Rheumatology Physician organization in Tarzana, CA (NPI 1700999117).
Provider details
- NPI number
- 1700999117
- Entity type
- Organization
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Diana Babayants, Office Manager(818) 996-4077
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Non-Pharmacy Dispensing Site332900000X
Suppliers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Rheumatology Therapeutics Medical Center
- Doing business as
- Rheumatology Therapeutics Medical Center
Registry dates
- Enumerated
- 2006-08-17
- Last updated
- 2025-03-19
- Certified
- 2025-03-19
Frequently asked questions
- What is Boris D Ratiner, MD, Inc's NPI number?
- Boris D Ratiner, MD, Inc's National Provider Identifier (NPI) is 1700999117, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Boris D Ratiner, MD, Inc?
- Boris D Ratiner, MD, Inc is classified in the NPPES registry as Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Boris D Ratiner, MD, Inc located?
- Boris D Ratiner, MD, Inc's practice location on file with NPPES is 18386 Ventura Blvd, Tarzana, CA 91356-4219.
- What is Boris D Ratiner, MD, Inc's phone number?
- The practice phone number listed in the NPPES registry for Boris D Ratiner, MD, Inc is (818) 996-4077.
- Does Boris D Ratiner, MD, Inc accept Medicare?
- Boris D Ratiner, MD, Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Boris D Ratiner, MD, Inc?
- The authorized official listed on Boris D Ratiner, MD, Inc's NPPES record is Diana Babayants, Office Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Boris D Ratiner, MD, Inc's NPI active?
- Yes — Boris D Ratiner, MD, Inc's NPI (1700999117) is active in the NPPES registry as of the last update on 2025-03-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.