Ace Barash, M.D.
Emergency Medicine Physician · Willits, CA
Ace Barash, M.D. is an emergency medicine physician with a practice address in Willits, California, and NPI 1861478281, issued on Dec 16, 2005. Check the license (California G42757, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ace Barash
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- G42757 CA
Self-reported in NPPES; status is on the state search - Practice location
- 84 Madrone St, Willits, CA 95490
- Phone
- (707) 459-6855
- Enumerated
- Dec 16, 2005
- Record last updated
- Sep 11, 2025
- Fax
- (707) 459-9585
- Medicare enrollment
- Enrolled (PECOS I20040112000592); accepts Medicare assignment
- Medical or professional school
- University Of Kansas School Of Med (Kc/Wich/Sal), 1979
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 84 Madrone St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Barbra Gradus, FNP-BCFamily Nurse Practitioner1962851337
- Jessica Lifshutz-Grinberg, CPOOrthotist1942419544
Verify Ace Barash in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G42757Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average emergency medicine physician in 2024
512 Medicare Part D claims for 38 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium33 claims
- Levetiracetam32 claims
- Metformin Hcl32 claims
- Lisinopril29 claims
- Atorvastatin Calcium23 claims
- Amlodipine Besylate21 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 97.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $404.15
11 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Ukiah Adventist HospitalUkiah, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ace Barash among 7,751 emergency medicine physician records in California
Ace Barash, M.D. is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 96% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1979 · median 2011 among the 4,560 with a school on file
- Record last updated2025 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Willits → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Joshua Kucker, MDWindsor, CA 954921336103324
- Alejandro Casillas, M.D.Ukiah, CA 954821376707919
- Kelsey Coolahan, MDUkiah, CA 954821669054334
- Charlie Evans, MDUkiah, CA 954821104875475
- Gary Fausone, MDUkiah, CA 954821316997737
- Megan Forbes, MDUkiah, CA 954821578213930
- Ronald Gester, MDUkiah, CA 954821043335664
- Debbie Marks, MDUkiah, CA 954821447231220
Common questions
What is Ace Barash, M.D.'s NPI number?
Ace Barash, M.D.'s National Provider Identifier (NPI) is 1861478281, issued on Dec 16, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Ace Barash, M.D. located?
The NPPES record lists a practice address at 84 Madrone St, Willits, CA, 95490. Phone: (707) 459-6855. Providers update this record themselves, so call before visiting.
How can I verify Ace Barash, M.D.'s license?
NPPES lists California license number G42757, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ace Barash, M.D. prescribe under Medicare Part D?
In 2024, Ace Barash, M.D. had 512 Medicare Part D claims for 38 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Ace Barash, M.D.'s MIPS final score?
The 2023 MIPS final score is 97.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.