ISAAC SINAI M.D.
NPI 1669823860
Family Medicine in Calabasas, CA
About Isaac Sinai M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ISAAC SINAI M.D. (NPI 1669823860) is an individual family medicine provider in Calabasas, California, licensed in California (A158410) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS and is a graduate of Other (2016).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Isaac Sinai M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Isaac Sinai reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
West Hills, CA 91304
- Reassigned Medicare billing, California enrollment
- 205 clinicians in this Medicare group
Los Angeles, CA 90095
- Reassigned Medicare billing, California enrollment
- 1,766 clinicians in this Medicare group
Glendale, CA 91201
- Reassigned Medicare billing, California enrollment
- 273 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 10
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91302 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 15
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CALABASAS, CA 91302
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Isaac Sinai's NPI number?
The NPI number for Isaac Sinai is 1669823860. It was assigned to this individual provider in the NPPES registry on June 29, 2016.
Where is Isaac Sinai located?
Isaac Sinai practices at 26585 Agoura Rd Ste 330, Calabasas, CA 91302. The listed phone number is (818) 876-1050.
What is Isaac Sinai's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Isaac Sinai enrolled in Medicare?
Yes. Isaac Sinai is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Isaac Sinai's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Isaac Sinai reassigns Medicare benefits to 3 organizations: Lakeside Medical Organization, A Medical Group Inc. (West Hills, CA), The Regents Of The University Of California (Los Angeles, CA) and Regents Of The University Of California (Glendale, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Isaac Sinai's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Isaac Sinai was last updated on January 11, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Isaac Sinai, M.D. · NPI 1669823860
Family Medicine physician in Calabasas, California. Individual provider, active in the CMS NPPES registry since June 29, 2016.
## Identity
- **NPI:** 1669823860 (Entity type: Individual)
- **Enumerated:** June 29, 2016
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** A158410 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 26585 AGOURA RD STE 330, Calabasas, CA 91302-1958
- **Phone:** (818) 876-1050
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Lakeside Medical Organization, A Medical Group Inc. (NPI 1831426642, West Hills, CA); The Regents Of The University Of California (NPI 1235107566, Los Angeles, CA); Regents Of The University Of California (NPI 1891110888, Glendale, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** January 11, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1669823860) · Data from the CMS NPPES public registry.