David Brynn Karch, M.D.
Emergency Medicine Physician · San Francisco, CA
David Brynn Karch, M.D. is an emergency medicine physician with a practice address in San Francisco, California, and NPI 1861401382, issued on Aug 5, 2006. Check the license (California G169269, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- David Brynn Karch
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- G169269 CA
MD00033659 WA
Self-reported in NPPES; status is on the state search - Practice location
- 450 Stanyan St, San Francisco, CA 94117
- Phone
- (415) 668-1000
- Enumerated
- Aug 5, 2006
- Record last updated
- Mar 28, 2022
- Medicaid ID
- 8194623 WA
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 450 Stanyan St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- David Andino-Nieves, MDInternal Medicine Physician1639515638
- Allison AngurenStudent in an Organized Health Care Education/Training Program1376121152
- Nadine Antebi, PTNeurology Physical Therapist1962373753
Verify David Brynn Karch in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G169269Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
26% fewer Medicare Part D claims than the average emergency medicine physician in 2024
168 Medicare Part D claims for 104 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 13 claims were for opioids.
Most prescribed
- Ibuprofen18 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): 94.6 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).
David Brynn Karch among 7,751 emergency medicine physician records in California
David Brynn Karch, M.D. 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 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 60% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2022 · 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 San Francisco → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Larry Bedard, M.DSan Francisco, CA 941171801832100
- David Chou, M.D.San Francisco, CA 941171942664578
- Madeline Deutsch, MDSan Francisco, CA 941171750313383
- Tin Do, M.D.San Francisco, CA 941171154419034
- Abhilash Felix, M.D.San Francisco, CA 941171194089813
- Oron Frenkel, M.D., M.S.San Francisco, CA 941171699077594
- Margaret Salmon, M.D., M.P.H.San Francisco, CA 941171497915268
- Lisa Wu, M.DSan Francisco, CA 941171114954385
Common questions
What is David Brynn Karch, M.D.'s NPI number?
David Brynn Karch, M.D.'s National Provider Identifier (NPI) is 1861401382, issued on Aug 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David Brynn Karch, M.D. located?
The NPPES record lists a practice address at 450 Stanyan St, San Francisco, CA, 94117. Phone: (415) 668-1000. Providers update this record themselves, so call before visiting.
How can I verify David Brynn Karch, M.D.'s license?
NPPES lists California license number G169269, 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 David Brynn Karch, M.D. prescribe under Medicare Part D?
In 2024, David Brynn Karch, M.D. had 168 Medicare Part D claims for 104 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is David Brynn Karch, M.D.'s MIPS final score?
The 2023 MIPS final score is 94.6 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.