Josiah Ambrose, MD
Neurology Physician · San Francisco, CA
Josiah Ambrose, MD is a neurology physician with a practice address in San Francisco, California, and NPI 1699985747, issued on May 23, 2007. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Josiah Ambrose
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- Practice location
- Ucsf Dept OF Neurology, San Francisco, CA 94143
- Phone
- (415) 353-3549
- Enumerated
- May 23, 2007
- Entity
- Type 1 · individual
Verify Josiah Ambrose in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
41% fewer Medicare Part D claims than the average neurology physician in 2024
795 Medicare Part D claims for 109 beneficiaries, against an average of 1,356 among the 13,714 providers of this specialty who prescribed in Part D.
Most prescribed
- Clonazepam113 claims
- Lamotrigine94 claims
- Xcopri74 claims
- Lacosamide60 claims
- Levetiracetam44 claims
- Lamotrigine Er38 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.
Industry payments in 2024: $627.62
2 payments, mostly food and beverage; the largest payer was Neuropace, Inc.. The 9,995 providers of this specialty with any payment received $8,603.82 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.
Neurology Physician providers in California
There are 2,160 neurology physician records in California.
Other neurology physician records in California
- Venkat Raghav Aachi, MDThousand Oaks, CA1740640051
- John Aalbers, M.D.San Diego, CA1942262431
- Puya Abbassi, D.O.San Jose, CA1831695428
- Ahmed Abdelhak, MB CHBSan Francisco, CA1053013748
- Hadi Abou El Hassan, MDLos Angeles, CA1053995720
- John Paul Aboubechara, MD, PHDPalo Alto, CA1205461803
- Justin Abraham, M.D., M.B.A.Santa Barbara, CA1225322522
- Scott Abramson, M.D.San Leandro, CA1891873667
- Valerie Acevedo, D.O.Newport Beach, CA1043258502
- Saviour Achilike, MDTracy, CA1033506688
Common questions
What is Josiah Ambrose, MD's NPI number?
Josiah Ambrose, MD's National Provider Identifier (NPI) is 1699985747, issued on May 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Josiah Ambrose, MD located?
The NPPES record lists a practice address at Ucsf Dept OF Neurology, San Francisco, CA, 94143. Phone: (415) 353-3549. Providers update this record themselves, so call before visiting.
How can I verify Josiah Ambrose, MD's license?
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 Josiah Ambrose, MD prescribe under Medicare Part D?
In 2024, Josiah Ambrose, MD had 795 Medicare Part D claims for 109 beneficiaries; the average among neurology physician prescribers was 1,356. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.