Willard S. Ellis, MD
Hospitalist Physician · Sacramento, CA
Willard S. Ellis, MD is a hospitalist physician with a practice address in Sacramento, California, and NPI 1306824503, issued on Jan 6, 2006. Check the license (California A73530, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Willard S. Ellis
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A73530 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2315 Stockton Blvd, Sacramento, CA 95817
- Phone
- (916) 734-7506
- Enumerated
- Jan 6, 2006
- Record last updated
- Dec 9, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (916) 734-4810
- Medicaid ID
- A735300 CA
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 2315 Stockton Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Willard S. Ellis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A73530Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average hospitalist physician in 2024
58 Medicare Part D claims for 27 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
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.
Willard S. Ellis among 3,099 hospitalist physician records in California
Willard S. Ellis, 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 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 73% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileNo · 81% of these records are
- Record last updated2021 · 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 Sacramento → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Simon Ascher, M.D., M.P.H.Sacramento, CA 958171558604835
- Xiao Cai, M.D.Sacramento, CA 958171205070067
- Gerardo CanedoSacramento, CA 958171588068969
- Wendy Chu, M.D.Sacramento, CA 958171780901231
- Theresa DuongSacramento, CA 958171245506872
- Ranganathan Madhavan, M.D.Sacramento, CA 958171043355019
- Emily Marquet, M.D.Sacramento, CA 958171972869402
- Alison McWilliams, D.O.Sacramento, CA 958171740629476
Common questions
What is Willard S. Ellis, MD's NPI number?
Willard S. Ellis, MD's National Provider Identifier (NPI) is 1306824503, issued on Jan 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Willard S. Ellis, MD located?
The NPPES record lists a practice address at 2315 Stockton Blvd, Sacramento, CA, 95817. Phone: (916) 734-7506. Providers update this record themselves, so call before visiting.
How can I verify Willard S. Ellis, MD's license?
NPPES lists California license number A73530, 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 Willard S. Ellis, MD prescribe under Medicare Part D?
In 2024, Willard S. Ellis, MD had 58 Medicare Part D claims for 27 beneficiaries; the average among hospitalist physician prescribers was 521. 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.