DR. ACE BARASH M.D.
NPI 1861478281
Emergency Medicine in Willits, CA
About Dr. Ace Barash M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ACE BARASH M.D. (NPI 1861478281) is an individual emergency medicine provider in Willits, California, licensed in California (G42757) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS and is a graduate of University Of Kansas School Of Med (kc/wich/sal) (1979).
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
Dr. Ace Barash 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 Ace Barash reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Helena, CA 94574
- Reassigned Medicare billing, California enrollment
- 678 clinicians in this Medicare group
Ukiah, CA 95482
- Reassigned Medicare billing, California enrollment
- 221 clinicians in this Medicare group
Willits, CA 95490
- Reassigned Medicare billing, California enrollment
- 134 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 95490 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 3
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 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WILLITS, CA 95490
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 Ace Barash's NPI number?
The NPI number for Ace Barash is 1861478281. It was assigned to this individual provider in the NPPES registry on December 16, 2005.
Where is Ace Barash located?
Ace Barash practices at 84 Madrone St, Willits, CA 95490. The listed phone number is (707) 459-6855.
What is Ace Barash's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Ace Barash enrolled in Medicare?
Yes. Ace Barash 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 Ace Barash's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ace Barash reassigns Medicare benefits to 3 organizations: Adventist Health Physicians Network (Saint Helena, CA), Ukiah Adventist Hospital (Ukiah, CA) and Willits Hospital Inc. (Willits, 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 Ace Barash'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 Ace Barash was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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. Ace Barash, M.D. · NPI 1861478281
Emergency Medicine physician in Willits, California. Individual provider, active in the CMS NPPES registry since December 16, 2005.
## Identity
- **NPI:** 1861478281 (Entity type: Individual)
- **Enumerated:** December 16, 2005
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** G42757 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 84 MADRONE ST, Willits, CA 95490-4249
- **Phone:** (707) 459-6855 · **Fax:** (707) 459-9585
## 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): Adventist Health Physicians Network (NPI 1003113192, Saint Helena, CA); Ukiah Adventist Hospital (NPI 1235120676, Ukiah, CA); Willits Hospital Inc. (NPI 1356339543, Willits, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Kansas School Of Med, class of 1979
## Record status
- **NPPES last updated:** September 11, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1861478281) · Data from the CMS NPPES public registry.