2026 NPPES data Addiction Medicine (Family Medicine) Physician NPI 1689170573 DO
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ALEXANDRA ARENSON, DO

Addiction Medicine (Family Medicine) Physician in WALNUT CREEK, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
170
Medicare Part D claims · 38 beneficiaries · Addiction Medicine (Family Medicine) Physician avg: 1K
What the federal data reveals: ALEXANDRA ARENSON, DO is a Addiction Medicine (Family Medicine) Physician ([object Object]) practicing in WALNUT CREEK, California with a Medicare Part D prescribing footprint of 170 claims across 38 beneficiaries .

What stands out: ALEXANDRA ARENSON, DO filed 170 Medicare Part D claims in 2023 across WALNUT CREEK, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

ALEXANDRA ARENSON, DO practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

ALEXANDRA ARENSON, DO at a glance

Quality data not reported

NPI registry status

Active

Issued 04/01/2018

NPI 1689170573

Primary specialty

Addiction Medicine (Family Medicine) Physician

Niche

763 US NPIs in this specialty

Medicare Part D claims

170 85% vs specialty avg

2023 prescription claims

Specialty avg: 1,134

Specialty distribution in California

How Addiction Medicine (Family Medicine) Physician compares to other specialties among California providers

California providers

Addiction Medicine (Family Medicine) Physician share within California

1. Addiction Medicine (Family Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Addiction Medicine (Family Medicine) Physician share within California

Specialty board-certification context

Estimated specialty board-certified rate — Addiction Medicine (Family Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Addiction Medicine (Family Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Addiction Medicine (Family Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Addiction Medicine (Family Medicine) Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

ALEXANDRA ARENSON, DO is a Addiction Medicine (Family Medicine) Physician provider practicing in WALNUT CREEK, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: DO. NPI: 1689170573. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ALEXANDRA ARENSON, DO appears in the CMS NPPES registry as a Addiction Medicine (Family Medicine) Physician provider holding DO credentials at 710 S BROADWAY STE 209, WALNUT CREEK, CA, 94596, with a listed phone of (925) 295-4145. NPI 1689170573 was issued on 04/01/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ARENSON most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 170 prescription claims written by this provider, covering 38 Medicare beneficiaries and totaling roughly $11K in drug spend, with an opioid prescribing rate of 12.4%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Addiction Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 763 enrolled providers across 48 states and an average of 1,134 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

710 S BROADWAY STE 209
WALNUT CREEK, CA 94596

Provider Details

NPI 1689170573
Specialty Addiction Medicine (Family Medicine) Physician
Credentials DO
Gender Female
NPI Issued 04/01/2018

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to ALEXANDRA ARENSON, DO. To verify ALEXANDRA ARENSON, DO's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

170
Total Claims
$11K
Total Drug Cost
38
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
226
Total Day Supply
5,441
Generic Drug Cost
$10K
Opioid Claims
21 (12.4% rate)

Patient Demographics

Average Patient Age
68.1 years
Avg HCC Risk Score
1.37
Gender Split
55% female / 45% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Buprenorphine-Naloxone
Buprenorphine Hcl/Naloxone Hcl
47
Gabapentin
22
Buprenorphine
21
Naltrexone Hcl
15

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Addiction Medicine (Family Medicine) Physician Overview

How ALEXANDRA ARENSON, DO fits within the Addiction Medicine (Family Medicine) Physician landscape nationally.

763
Addiction Medicine (Family Medicine) Physician Providers in US
48
States with Addiction Medicine (Family Medicine) Physician
1,134
Avg Claims per Provider

ALEXANDRA ARENSON, DO's 170 claims are below the specialty average of 1,134.

Nearby Addiction Medicine (Family Medicine) Physician Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as ARENSON.

Compare Addiction Medicine (Family Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ALEXANDRA ARENSON, DO's specialty?
ALEXANDRA ARENSON, DO specializes in Addiction Medicine (Family Medicine) Physician and practices in WALNUT CREEK, California. Credentials: DO.
How much does ALEXANDRA ARENSON, DO prescribe under Medicare Part D?
In 2023, ALEXANDRA ARENSON, DO wrote 170 Medicare Part D claims totaling $11K in drug costs for 38 beneficiaries.
Where is ALEXANDRA ARENSON, DO located?
ALEXANDRA ARENSON, DO is located at 710 S BROADWAY STE 209, WALNUT CREEK, CA, 94596. Phone: (925) 295-4145.
What is ALEXANDRA ARENSON, DO's NPI number?
ALEXANDRA ARENSON, DO's National Provider Identifier (NPI) is 1689170573, issued on 04/01/2018.
Does ALEXANDRA ARENSON, DO prescribe opioids?
Yes, ALEXANDRA ARENSON, DO had 21 opioid claims in 2023 with an opioid prescribing rate of 12.4%.
How many Addiction Medicine (Family Medicine) Physician providers are there in the US?
There are 763 Addiction Medicine (Family Medicine) Physician providers across 48 states in the US. The average Addiction Medicine (Family Medicine) Physician provider writes 1,134 Medicare Part D claims per year.
What drugs does ALEXANDRA ARENSON, DO prescribe most often?
Based on 2023 Medicare Part D data, ALEXANDRA ARENSON, DO's most frequently prescribed drugs include Buprenorphine-Naloxone, Gabapentin, Buprenorphine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ALEXANDRA ARENSON, DO accept Medicare?
ALEXANDRA ARENSON, DO appears in CMS Medicare data with 170 Part D claims and 38 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ALEXANDRA ARENSON, DO's credentials?
ALEXANDRA ARENSON, DO's NPI is 1689170573 with credentials DO. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology