Eric Aaserude
Emergency Medicine Physician · Walnut Creek, CA
Eric Aaserude is an emergency medicine physician with a practice address in Walnut Creek, California, and NPI 1811491194, issued on Mar 21, 2018. Check the license (California 194406, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Eric Aaserude
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 194406 CA
57.246252 OH
Self-reported in NPPES; status is on the state search - Practice location
- 1425 S Main St, Walnut Creek, CA 94596
- Phone
- (925) 295-4000
- Enumerated
- Mar 21, 2018
- Record last updated
- Aug 12, 2024
- Medicare enrollment
- Enrolled (PECOS I20240806004780); accepts Medicare assignment
- Medical or professional school
- University Of Rochester School Of Medicine And Dentistry, 2018
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 1425 S Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jacqueline Alkire, NPAdult Health Nurse Practitioner1902890114
Verify Eric Aaserude in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 194406Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% fewer Medicare Part D claims than the average emergency medicine physician in 2024
152 Medicare Part D claims for 123 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 18 claims were for opioids.
Most prescribed
- Cephalexin25 claims
- Ondansetron Odt14 claims
- Oxycodone Hcl14 claims
- Prednisone11 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): 79.4 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 one group practice
- Permanente Medical Group IncWalnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Eric Aaserude among 7,751 emergency medicine physician records in California
Eric Aaserude 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 2018, is newer than 81% of them.
- NPI issued2018 · 81% of these records are older, 15% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2018 · median 2011 among the 4,560 with a school on file
- Record last updated2024 · 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).
95 emergency medicine physician records list a practice address in Walnut Creek
They are 95 of the 6,170 NPPES records with a practice address in Walnut Creek, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Walnut Creek → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Peter Barnett, M.D.Walnut Creek, CA 945961699882589
- Brian Baskin, MDWalnut Creek, CA 945961770554693
- Peter Benson, M.D.Walnut Creek, CA 945961487680393
- Scott Chamberlain, M.D.Walnut Creek, CA 945961356395453
- Charles Hansen, MDWalnut Creek, CA 945961891873956
- Christopher Jaksa, MDWalnut Creek, CA 945961619055779
- Conrad Lai, M.DWalnut Creek, CA 945961942248141
- Hannon Patel, MDWalnut Creek, CA 945961336227495
Common questions
What is Eric Aaserude's NPI number?
Eric Aaserude's National Provider Identifier (NPI) is 1811491194, issued on Mar 21, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Eric Aaserude located?
The NPPES record lists a practice address at 1425 S Main St, Walnut Creek, CA, 94596. Phone: (925) 295-4000. Providers update this record themselves, so call before visiting.
How can I verify Eric Aaserude's license?
NPPES lists California license number 194406, 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 Eric Aaserude prescribe under Medicare Part D?
In 2024, Eric Aaserude had 152 Medicare Part D claims for 123 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Eric Aaserude's MIPS final score?
The 2023 MIPS final score is 79.4 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.