MATTHEW BLAKE TASH M.D.
NPI 1386882181
Anesthesiology in Los Angeles, CA
About Matthew Blake Tash M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MATTHEW BLAKE TASH M.D. (NPI 1386882181) is an individual anesthesiology provider in Los Angeles, California, licensed in California (A121611) and active in the NPI registry since February 2009. He is enrolled in Medicare PECOS and is a graduate of Tulane University School Of Medicine (2008).
NPPES Registry Identity
Specialties & Licenses 2
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
Matthew Blake Tash 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
6Medicare enrollment records show Matthew Tash reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90039
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
Los Angeles, CA 90027
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Childrens Hospital Los Angeles Medical Group Inc
- 1,281 clinicians in this Medicare group
Los Angeles, CA 90048
- Reassigned Medicare billing, California enrollment
- 2,118 clinicians in this Medicare group
Encino, CA 91436
- Reassigned Medicare billing, California enrollment
Woodland Hills, CA 91364
- Reassigned Medicare billing, California enrollment
- 39 clinicians in this Medicare group
Manhattan Beach, CA 90266
- Reassigned Medicare billing, California enrollment
- 67 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 7
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.
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 Matthew Tash's NPI number?
The NPI number for Matthew Tash is 1386882181. It was assigned to this individual provider in the NPPES registry on February 2, 2009.
Where is Matthew Tash located?
Matthew Tash practices at 3943 Veselich Ave Apt 175, Los Angeles, CA 90039. The listed phone number is (818) 917-6091.
What is Matthew Tash's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Matthew Tash enrolled in Medicare?
Yes. Matthew Tash 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 Matthew Tash's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Tash reassigns Medicare benefits to 6 organizations: Southern California Permanente Medical Group (Los Angeles, CA), Children's Hospital Los Angeles Medical Group, Inc. (Los Angeles, CA), Cedars-Sinai Medical Care Foundation (Los Angeles, CA), Tash Anesthesia MD PC (Encino, CA), Brotman Medical Anesthesia Group (Woodland Hills, CA) and 1 more organization, listed in the Medicare section above. 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 Matthew Tash'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 Matthew Tash was last updated on December 15, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Matthew Blake Tash, M.D. · NPI 1386882181
Anesthesiology physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since February 2, 2009.
## Identity
- **NPI:** 1386882181 (Entity type: Individual)
- **Enumerated:** February 2, 2009
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** A121611 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 3943 VESELICH AVE APT 175, Los Angeles, CA 90039-1439
- **Phone:** (818) 917-6091
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Southern California Permanente Medical Group (NPI 1346328853, Los Angeles, CA); Children's Hospital Los Angeles Medical Group, Inc. (NPI 1265530653, Los Angeles, CA); Cedars-Sinai Medical Care Foundation (NPI 1043826720, Los Angeles, CA); Tash Anesthesia MD PC (NPI 1376374330, Encino, CA); Brotman Medical Anesthesia Group (NPI 1154378362, Woodland Hills, CA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tulane University School Of Medicine, class of 2008
## Record status
- **NPPES last updated:** December 15, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1386882181) · Data from the CMS NPPES public registry.