Aaron Harries
Emergency Medicine Physician · San Francisco, CA
Aaron Harries is an emergency medicine physician with a practice address in San Francisco, California, and NPI 1437468824, issued on Oct 2, 2010. Check the license (California A110929, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Aaron Harries
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A110929 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1001 Potrero Ave Bldg 25, San Francisco, CA 94110
- Phone
- (415) 206-5753
- Enumerated
- Oct 2, 2010
- Record last updated
- Sep 5, 2024
- Fax
- (415) 206-5818
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 1001 Potrero Ave Bldg 25
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Rahael Borchers, MDInternal Medicine Physician1184360588
- Theresa ChengEmergency Medicine Physician1578926929
- Jeffrey Critchfield, MDInternal Medicine Physician1750392791
Verify Aaron Harries in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A110929Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average emergency medicine physician in 2024
29 Medicare Part D claims for 19 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): 91.9 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).
Aaron Harries among 7,751 emergency medicine physician records in California
Aaron Harries 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 2010, is newer than 58% of them.
- NPI issued2010 · 58% of these records are older, 40% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- 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).
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
- John Brown, MDSan Francisco, CA 941101053355941
- Ritik Chandra, MDSan Francisco, CA 941101700838737
- Rachel Chin, MDSan Francisco, CA 941101477597375
- Christopher Colwell, MDSan Francisco, CA 941101629092788
- Alan Gelb, MDSan Francisco, CA 941101497796213
- Eric Isaacs, MDSan Francisco, CA 941101356385231
- Todd Kessinger, MDSan Francisco, CA 941101255374732
- Judith Klein, MDSan Francisco, CA 941101235171638
Common questions
What is Aaron Harries's NPI number?
Aaron Harries's National Provider Identifier (NPI) is 1437468824, issued on Oct 2, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Aaron Harries located?
The NPPES record lists a practice address at 1001 Potrero Ave Bldg 25, San Francisco, CA, 94110. Phone: (415) 206-5753. Providers update this record themselves, so call before visiting.
How can I verify Aaron Harries's license?
NPPES lists California license number A110929, 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 Aaron Harries prescribe under Medicare Part D?
In 2024, Aaron Harries had 29 Medicare Part D claims for 19 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Aaron Harries's MIPS final score?
The 2023 MIPS final score is 91.9 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.