William M. Mundy, MD
Hospitalist Physician · Berkeley, CA
William M. Mundy, MD is a hospitalist physician with a practice address in Berkeley, California, and NPI 1336341825, issued on Jun 5, 2007. Check the license (California A105911, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William M. Mundy
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A105911 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2450 Ashby Ave RM 5505, Berkeley, CA 94705
- Phone
- (510) 204-4444
- Enumerated
- Jun 5, 2007
- Record last updated
- Jul 21, 2022
- Fax
- (510) 649-8287
- Medicare enrollment
- Enrolled (PECOS I20090211000815); accepts Medicare assignment
- Medical or professional school
- Medical College Of Ohio, 1999
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 2450 Ashby Ave RM 5505
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Lisa Chandler, MDInternal Medicine Physician1720376395
- Cecilia Hernandez, MDHospitalist Physician1851493688
- Feeiwen Hsiao, M.D.Hospitalist Physician1124180302
- Gerard Jenkins, M.D.Hospitalist Physician1154648285
- Michael Labarbera, MD, PHD, MPHHospitalist Physician1548722796
Verify William M. Mundy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A105911Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% more Medicare Part D claims than the average hospitalist physician in 2024
746 Medicare Part D claims for 200 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 28 claims were for opioids.
Most prescribed
- Atorvastatin Calcium53 claims
- Metoprolol Succinate39 claims
- Amlodipine Besylate34 claims
- Pantoprazole Sodium29 claims
- Prednisone27 claims
- Albuterol Sulfate Hfa26 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): 84.1 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 2 group practices
- Farallon Inpatient Medical Group IncLakeport, CA
- Galen Inpatient Physicians PCGreenbrae, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William M. Mundy among 3,099 hospitalist physician records in California
William M. Mundy, MD is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 27% of them.
- NPI issued2007 · 27% of these records are older, 66% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated1999 · median 2010 among the 2,505 with a school on file
- Record last updated2022 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Berkeley → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Marina Atala, M.D.Berkeley, CA 947051992722359
- Trissa Baden, MDBerkeley, CA 947051801898283
- Ursula Boynton, M.D.Berkeley, CA 947051083722680
- Valerie Curtis, MDBerkeley, CA 947051013081629
- Cecilia Hernandez, MDBerkeley, CA 947051851493688
- Feeiwen Hsiao, M.D.Berkeley, CA 947051124180302
- Carol Livingston, MDBerkeley, CA 947051306801477
- Michelle Miller, MDBerkeley, CA 947051326126236
Common questions
What is William M. Mundy, MD's NPI number?
William M. Mundy, MD's National Provider Identifier (NPI) is 1336341825, issued on Jun 5, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William M. Mundy, MD located?
The NPPES record lists a practice address at 2450 Ashby Ave RM 5505, Berkeley, CA, 94705. Phone: (510) 204-4444. Providers update this record themselves, so call before visiting.
How can I verify William M. Mundy, MD's license?
NPPES lists California license number A105911, 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 M. Mundy, MD prescribe under Medicare Part D?
In 2024, William M. Mundy, MD had 746 Medicare Part D claims for 200 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is William M. Mundy, MD's MIPS final score?
The 2023 MIPS final score is 84.1 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.