James Michael Hopkins, D.O.
Emergency Medical Services (Emergency Medicine) Physician · Martinez, CA
James Michael Hopkins, D.O. is an emergency medical services (emergency medicine) physician with a practice address in Martinez, California, and NPI 1851401830, issued on Aug 30, 2006. Check the license (California 20A5829, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Michael Hopkins
- Credential
- D.O.
- Primary taxonomy
- Emergency Medical Services (Emergency Medicine) Physician 207PE0004X
- License number
- 20A5829 CA
Self-reported in NPPES; status is on the state search - Practice location
- 102 Stonehurst CT, Martinez, CA 94553
- Phone
- (925) 229-4273
- Enumerated
- Aug 30, 2006
- Record last updated
- Feb 11, 2022
- Medicare enrollment
- Enrolled (PECOS I20040519001108); accepts Medicare assignment
- Medical or professional school
- College Of Osteo Med Of The Pacific At Pomona, 1989
- Entity
- Type 1 · individual
Verify James Michael Hopkins in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A5829Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average emergency medical services (emergency medicine) physician in 2024
722 Medicare Part D claims for 340 beneficiaries, against an average of 292 among the 1,653 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 67 claims were for opioids.
Most prescribed
- Ibuprofen76 claims
- Hydrocodone-Acetaminophen54 claims
- Ondansetron Odt53 claims
- Cefpodoxime Proxetil38 claims
- Dexamethasone35 claims
- Tizanidine Hcl35 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.
Bills Medicare through one group practice
- Permanente Medical Group IncVallejo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Emergency Medical Services (Emergency Medicine) Physician providers in California
There are 233 emergency medical services (emergency medicine) physician records in California.
Other emergency medical services (emergency medicine) physician records in California
- Louis Acosta, M.D.Los Angeles, CA1528144219
- Derek Ailes, M.D.Walnut Creek, CA1992001804
- Talal Al Quraini, M.D.Chula Vista, CA1316955446
- Ernest Almendarez, MDStockton, CA1821182338
- Manish Amin, DOBakersfield, CA1407813116
- Christopher Angemi, D.O.Torrance, CA1386814671
- Allison Auchter, MD, PHDOceanside, CA1013595248
- Tigran Avoian, MDLos Angeles, CA1649402678
- Eugene Baldridge, M.D.Torrance, CA1255373924
- Larry Baraff, MDLos Angeles, CA1083630883
Common questions
What is James Michael Hopkins, D.O.'s NPI number?
James Michael Hopkins, D.O.'s National Provider Identifier (NPI) is 1851401830, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James Michael Hopkins, D.O. located?
The NPPES record lists a practice address at 102 Stonehurst CT, Martinez, CA, 94553. Phone: (925) 229-4273. Providers update this record themselves, so call before visiting.
How can I verify James Michael Hopkins, D.O.'s license?
NPPES lists California license number 20A5829, 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 Michael Hopkins, D.O. prescribe under Medicare Part D?
In 2024, James Michael Hopkins, D.O. had 722 Medicare Part D claims for 340 beneficiaries; the average among emergency medical services (emergency medicine) physician prescribers was 292. 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.