Herschel Fischer, M.D.
Emergency Medicine Physician · Pleasanton, CA
Herschel Fischer, M.D. is an emergency medicine physician with a practice address in Pleasanton, California, and NPI 1588981005, issued on Apr 23, 2010. Check the license (California G8666, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Herschel Fischer
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- G8666 CA
Self-reported in NPPES; status is on the state search - Practice location
- 699 View Dr, Pleasanton, CA 94566
- Phone
- (925) 846-6685
- Enumerated
- Apr 23, 2010
- Record last updated
- Apr 23, 2010 (not updated in 16 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Verify Herschel Fischer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G8666Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average emergency medicine physician in 2024
17 Medicare Part D claims, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Herschel Fischer among 7,751 emergency medicine physician records in California
Herschel Fischer, 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 2010, is newer than 58% of them.
- NPI issued2010 · 58% of these records are older, 40% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2010 · 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).
27 emergency medicine physician records list a practice address in Pleasanton
They are 27 of the 2,213 NPPES records with a practice address in Pleasanton, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Pleasanton → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Robert Kwak, M.D.Pleasanton, CA 945661588963243
- Amy Burkhart, MD, RDNapa, CA 945591467691576
- John Brazil, MDNapa, CA 945581801545900
- Robert Brown, MDNapa, CA 945581255372223
- Steven Cardey, MDNapa, CA 945581902847064
- Edwin Carlson, M.D.Saint Helena, CA 945741174507552
- Chuan-Jay Chen, MDSaint Helena, CA 945741205366457
- Dan Clay, M.D.Saint Helena, CA 945741033192547
Common questions
What is Herschel Fischer, M.D.'s NPI number?
Herschel Fischer, M.D.'s National Provider Identifier (NPI) is 1588981005, issued on Apr 23, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Herschel Fischer, M.D. located?
The NPPES record lists a practice address at 699 View Dr, Pleasanton, CA, 94566. Phone: (925) 846-6685. Providers update this record themselves, so call before visiting.
How can I verify Herschel Fischer, M.D.'s license?
NPPES lists California license number G8666, 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 Herschel Fischer, M.D. prescribe under Medicare Part D?
In 2024, Herschel Fischer, M.D. had 17 Medicare Part D claims; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
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.