DR. MARK HESTRIN M.D.
NPI 1417125600
Anesthesiology in Agoura Hills, CA
About Dr. Mark Hestrin M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK HESTRIN M.D. (NPI 1417125600) is an individual anesthesiology provider in Agoura Hills, California, licensed in Maryland (D0043563) and active in the NPI registry since February 2008. He is enrolled in Medicare PECOS, maintains a secondary practice location in Santa Barbara, and is a graduate of Northwestern University Feinberg Medical School (1986).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Group Practice 1
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
Dr. Mark Hestrin 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
4Medicare enrollment records show Mark Hestrin reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Santa Barbara, CA 91306
- Reassigned Medicare billing, California and District of Columbia enrollments
Chevy Chase, MD 20815
- Reassigned Medicare billing, District of Columbia enrollment
Chevy Chase, MD 20815
- Reassigned Medicare billing, District of Columbia enrollment
Chevy Chase, MD 20815
- Reassigned Medicare billing, District of Columbia enrollment
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 4
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.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Mark Hestrin's NPI number?
The NPI number for Mark Hestrin is 1417125600. It was assigned to this individual provider in the NPPES registry on February 11, 2008.
Where is Mark Hestrin located?
Mark Hestrin practices at 29525 Canwood St Ste 220, Agoura Hills, CA 91301. The listed phone number is (310) 903-1980.
What is Mark Hestrin's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Mark Hestrin enrolled in Medicare?
Yes. Mark Hestrin 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 Mark Hestrin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Hestrin reassigns Medicare benefits to 4 organizations: Intrepid Anesthesia Associates Corporation (Santa Barbara, CA), Intrepid Anesthesia Associates LLC (Chevy Chase, MD), Oak Anesthesia Associates LLC (Chevy Chase, MD) and Oak Anesthesia Associates Medical (Chevy Chase, MD). 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 Mark Hestrin'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 Mark Hestrin was last updated on July 13, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Dr. Mark Hestrin, M.D. · NPI 1417125600
Anesthesiology physician in Agoura Hills, California. Individual provider, active in the CMS NPPES registry since February 11, 2008.
## Identity
- **NPI:** 1417125600 (Entity type: Individual)
- **Enumerated:** February 11, 2008
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** D0043563 (Maryland)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 29525 CANWOOD ST STE 220, Agoura Hills, CA 91301-4231
- **Phone:** (310) 903-1980
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Intrepid Anesthesia Associates Corporation (NPI 1912223983, Santa Barbara, CA); Intrepid Anesthesia Associates LLC (NPI 1710836697, Chevy Chase, MD); Oak Anesthesia Associates LLC (NPI 1609725498, Chevy Chase, MD); Oak Anesthesia Associates Medical (NPI 1699804914, Chevy Chase, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Northwestern University Feinberg Medical School, class of 1986
## Record status
- **NPPES last updated:** July 13, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1417125600) · Data from the CMS NPPES public registry.