William McDonald, MD
Emergency Medicine Physician · Nevada City, CA
William McDonald, MD is an emergency medicine physician with a practice address in Nevada City, California, and NPI 1568099315, issued on Mar 23, 2020. Check the license (California A179165, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William McDonald
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A179165 CA
Self-reported in NPPES; status is on the state search - Practice location
- 103 Providence Mine RD Ste 202, Nevada City, CA 95959
- Phone
- (530) 470-8377
- Enumerated
- Mar 23, 2020
- Record last updated
- Mar 15, 2025
- Medicare enrollment
- Enrolled (PECOS I20230724002566); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2020
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Verify William McDonald in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A179165Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average emergency medicine physician in 2024
107 Medicare Part D claims for 87 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Cefpodoxime Proxetil11 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
- Swope Medical Group IncGrass Valley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William McDonald among 7,751 emergency medicine physician records in California
William McDonald, MD 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 2020, is newer than 88% of them.
- NPI issued2020 · 88% of these records are older, 8% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2020 · 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 Nevada City → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Bridget MaisNevada City, CA 959591811524663
- Tanya Brown, MDLive Oak, CA 959531467498758
- Peter Russo, MDOroville, CA 959651679528350
- Massud Atta, MDOroville, CA 959661851956684
- Cynthia Cellucci-Chwalik, MDOroville, CA 959661457491359
- David Hall, MDOroville, CA 959661417993502
- Priss Harman, MDOroville, CA 959661851346530
- Matthew Macdonald, MDOroville, CA 959661922504463
Common questions
What is William McDonald, MD's NPI number?
William McDonald, MD's National Provider Identifier (NPI) is 1568099315, issued on Mar 23, 2020. An NPI identifies a provider in billing; it is not a license.
Where is William McDonald, MD located?
The NPPES record lists a practice address at 103 Providence Mine RD Ste 202, Nevada City, CA, 95959. Phone: (530) 470-8377. Providers update this record themselves, so call before visiting.
How can I verify William McDonald, MD's license?
NPPES lists California license number A179165, 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 William McDonald, MD prescribe under Medicare Part D?
In 2024, William McDonald, MD had 107 Medicare Part D claims for 87 beneficiaries; 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.