Sarah Marie Kelmenson-Chau, MD
Emergency Medicine Physician · Berkeley, CA
Sarah Marie Kelmenson-Chau, MD is an emergency medicine physician with a practice address in Berkeley, California, and NPI 1689796674, issued on Apr 3, 2007. Check the license (California A98209, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sarah Marie Kelmenson-Chau
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A98209 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3010 Colby St, Berkeley, CA 94705
- Phone
- (510) 843-1200
- Enumerated
- Apr 3, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 3010 Colby St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Sarah Marie Kelmenson-Chau in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A98209Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average emergency medicine physician in 2024
35 Medicare Part D claims for 29 beneficiaries, against an average of 226 among the 54,106 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 98.6 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).
Sarah Marie Kelmenson-Chau among 7,751 emergency medicine physician records in California
Sarah Marie Kelmenson-Chau, 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 2007, is newer than 40% of them.
- NPI issued2007 · 40% of these records are older, 50% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2007 · 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 Berkeley → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Karen Carothers, MDBerkeley, CA 947051619935830
- Jeff Chen, DRBerkeley, CA 947051912973074
- Brian Hinrichsen, PABerkeley, CA 947051376534792
- Michael Jugo, MDBerkeley, CA 947051609972066
- Michael Kessler, MDBerkeley, CA 947051316995830
- Michael Liu, MDBerkeley, CA 947051467571091
- Marjorie Macqueen, PABerkeley, CA 947051215995576
- Elton McAmis, MDBerkeley, CA 947051366400640
Common questions
What is Sarah Marie Kelmenson-Chau, MD's NPI number?
Sarah Marie Kelmenson-Chau, MD's National Provider Identifier (NPI) is 1689796674, issued on Apr 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Sarah Marie Kelmenson-Chau, MD located?
The NPPES record lists a practice address at 3010 Colby St, Berkeley, CA, 94705. Phone: (510) 843-1200. Providers update this record themselves, so call before visiting.
How can I verify Sarah Marie Kelmenson-Chau, MD's license?
NPPES lists California license number A98209, 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 Sarah Marie Kelmenson-Chau, MD prescribe under Medicare Part D?
In 2024, Sarah Marie Kelmenson-Chau, MD had 35 Medicare Part D claims for 29 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Sarah Marie Kelmenson-Chau, MD's MIPS final score?
The 2023 MIPS final score is 98.6 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.