Alexandra Arenson, DO
Addiction Medicine (Family Medicine) Physician · Walnut Creek, CA
Alexandra Arenson, DO is an addiction medicine (family medicine) physician with a practice address in Walnut Creek, California, and NPI 1689170573, issued on Apr 1, 2018. Check the license (California 20A17977, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alexandra Arenson
- Credential
- DO
- Primary taxonomy
- Addiction Medicine (Family Medicine) Physician 207QA0401X
- License number
- 20A17977 CA
Self-reported in NPPES; status is on the state search - Practice location
- 710 S Broadway Ste 209, Walnut Creek, CA 94596
- Phone
- (925) 295-4145
- Enumerated
- Apr 1, 2018
- Entity
- Type 1 · individual
Also registered at 710 S Broadway Ste 209
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Yuet Yee ChoAudiologist1730918988
- Margaret Devane, MSAudiologist-Hearing Aid Fitter1912051392
- Heather Gemmer, M.A., CCC-AAudiologist1932263480
- Raquel RamirezHearing Instrument Specialist1578121729
Verify Alexandra Arenson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A17977Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
73% fewer Medicare Part D claims than the average addiction medicine (family medicine) physician in 2024
316 Medicare Part D claims for 53 beneficiaries, against an average of 1,187 among the 571 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 38 claims were for opioids.
Most prescribed
- Buprenorphine-Naloxone107 claims
- Gabapentin39 claims
- Buprenorphine38 claims
- Buprenorphine Hcl24 claims
- Naltrexone Hcl24 claims
- Trazodone Hcl12 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.
Addiction Medicine (Family Medicine) Physician providers in California
There are 111 addiction medicine (family medicine) physician records in California.
Other addiction medicine (family medicine) physician records in California
- Matthew Abinante, DO, MPHHuntington Beach, CA1740685387
- Paul Abramson, M.D.San Francisco, CA1417977315
- Kami Adibi, M.D.Los Angeles, CA1548211436
- Belis Aladag, MD, MPH, FASAMWalnut Creek, CA1295994275
- Marianne Aldridge, M.D.Loma Linda, CA1336311000
- Abdul Mureed Alim, MDModesto, CA1285258426
- Karen Antwiler, M.D.Cathedral City, CA1598255465
- Dale Apodaca, M.D.San Diego, CA1598036436
- Jonathan Avalos, M.D.Rialto, CA1386050805
- Jerry Ayers, MDSan Diego, CA1104977602
Common questions
What is Alexandra Arenson, DO's NPI number?
Alexandra Arenson, DO's National Provider Identifier (NPI) is 1689170573, issued on Apr 1, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Alexandra Arenson, DO located?
The NPPES record lists a practice address at 710 S Broadway Ste 209, Walnut Creek, CA, 94596. Phone: (925) 295-4145. Providers update this record themselves, so call before visiting.
How can I verify Alexandra Arenson, DO's license?
NPPES lists California license number 20A17977, 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 Alexandra Arenson, DO prescribe under Medicare Part D?
In 2024, Alexandra Arenson, DO had 316 Medicare Part D claims for 53 beneficiaries; the average among addiction medicine (family medicine) physician prescribers was 1,187. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.