James Asher Hirshberg, M.D.
Emergency Medicine Physician · Berkeley, CA
James Asher Hirshberg, M.D. is an emergency medicine physician with a practice address in Berkeley, California, and NPI 1518183664, issued on Apr 17, 2007. Check the license (California A104284, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Asher Hirshberg
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- A104284 CA
35.090559 OH
Self-reported in NPPES; status is on the state search - Practice location
- 2450 Ashby Ave, Berkeley, CA 94705
- Phone
- (510) 204-2500
- Enumerated
- Apr 17, 2007
- Record last updated
- Aug 19, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20081113000735); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 2003
- Entity
- Type 1 · individual
Also registered at 2450 Ashby Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Henry Abrons, M.D.Critical Care Medicine (Internal Medicine) Physician1821001470
- Bobbi AllisonLactation Consultant (Registered Nurse)1952033888
- Madison Andersen, RN, BSNRegistered Nurse1518814763
- Neel Arant, CNMAdvanced Practice Midwife1528088283
- Marina Atala, M.D.Hospitalist Physician1992722359
- Richard Bails, M.D.Cardiovascular Disease Physician1336163450
Verify James Asher Hirshberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A104284Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24% fewer Medicare Part D claims than the average emergency medicine physician in 2024
172 Medicare Part D claims for 112 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 32 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen30 claims
- Cephalexin19 claims
- Amoxicillin-Clavulanate Potass17 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 practice group's MIPS final score for 2023 (Medicare payment program): 98.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Berkeley Emergency Medical Group IncOakland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
Other emergency medicine physician records in California
- Cooper Aakhus, MDStanford, CA1194351007
- Pyra Aarden, MDMartinez, CA1417058199
- Neal Aaron, D.O.Encinitas, CA1114283520
- Eric AaserudeWalnut Creek, CA1811491194
- Nader Abas, MDBarstow, CA1346288305
- Michael Abbo, MDNovato, CA1205819042
- Daniel Abbott, MDFullerton, CA1518907864
- Paul-Andre Abboud, M.D.Oakland, CA1710065503
- Mostafa Abdel-Hamid, MDStanford, CA1457918740
- Ashraf Abdel-KerimChino, CA1396961538
Common questions
What is James Asher Hirshberg, M.D.'s NPI number?
James Asher Hirshberg, M.D.'s National Provider Identifier (NPI) is 1518183664, issued on Apr 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is James Asher Hirshberg, M.D. located?
The NPPES record lists a practice address at 2450 Ashby Ave, Berkeley, CA, 94705. Phone: (510) 204-2500. Providers update this record themselves, so call before visiting.
How can I verify James Asher Hirshberg, M.D.'s license?
NPPES lists California license number A104284, 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 James Asher Hirshberg, M.D. prescribe under Medicare Part D?
In 2024, James Asher Hirshberg, M.D. had 172 Medicare Part D claims for 112 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is James Asher Hirshberg, M.D.'s MIPS final score?
The 2023 MIPS final score is 98.6 of 100, reported for the practice group. 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.