2026 NPPES data Neuromuscular Medicine (Psychiatry & Neurology) Physician NPI 1568524791 D.O.
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ALAN LARSEN, D.O.

Neuromuscular Medicine (Psychiatry & Neurology) Physician in TACOMA, Washington. 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.
What the federal data reveals: ALAN LARSEN, D.O. is a Neuromuscular Medicine (Psychiatry & Neurology) Physician ([object Object]) practicing in TACOMA, Washington .

What stands out: ALAN LARSEN, D.O. specializes in Neuromuscular Medicine (Psychiatry & Neurology) Physician and practices in TACOMA, Washington, listed in the federal CMS National Provider Identifier registry. Every detail on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

ALAN LARSEN, D.O. 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).

ALAN LARSEN, D.O. at a glance

Quality data not reported

NPI registry status

Active

Issued 12/14/2006

NPI 1568524791

Primary specialty

Neuromuscular Medicine (Psychiatry & Neurology) Physician

Rare

336 US NPIs in this specialty

Specialty distribution in Washington

How Neuromuscular Medicine (Psychiatry & Neurology) Physician compares to other specialties among Washington providers

Washington providers

Neuromuscular Medicine (Psychiatry & Neurology) Physician share within Washington

1. Neuromuscular Medicine (Psychiatry & Neurology) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Neuromuscular Medicine (Psychiatry & Neurology) Physician share within Washington

Specialty board-certification context

Estimated specialty board-certified rate — Neuromuscular Medicine (Psychiatry & Neurology) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Neuromuscular Medicine (Psychiatry & Neurology) Physician ABMS/AOA estimate

Est. board-certified rate (Neuromuscular Medicine (Psychiatry & Neurology) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Neuromuscular Medicine (Psychiatry & Neurology) 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).

ALAN LARSEN, D.O. is a Neuromuscular Medicine (Psychiatry & Neurology) Physician provider practicing in TACOMA, Washington, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.O.. NPI: 1568524791. 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.

ALAN LARSEN, D.O. appears in the CMS NPPES registry as a Neuromuscular Medicine (Psychiatry & Neurology) Physician provider holding D.O. credentials at 9040 JACKSON AVE, TACOMA, WA, 98431, with a listed phone of (253) 968-1440. NPI 1568524791 was issued on 12/14/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LARSEN 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 prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Neuromuscular Medicine (Psychiatry & Neurology) Physician providers operate outside Part D entirely.

Neuromuscular Medicine (Psychiatry & Neurology) Physician is a narrow specialty nationwide, with 336 enrolled providers across 44 states and an average of 931 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

9040 JACKSON AVE
TACOMA, WA 98431

Provider Details

NPI 1568524791
Specialty Neuromuscular Medicine (Psychiatry & Neurology) Physician
Credentials D.O.
Gender Male
NPI Issued 12/14/2006

License & disciplinary context — Washington WMC 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 ~34K Washington medical licensees in 2023 — they are NOT specific to ALAN LARSEN, D.O.. To verify ALAN LARSEN, D.O.'s current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases

WMC 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 Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Neuromuscular Medicine (Psychiatry & Neurology) Physician Overview

How ALAN LARSEN, D.O. fits within the Neuromuscular Medicine (Psychiatry & Neurology) Physician landscape nationally.

336
Neuromuscular Medicine (Psychiatry & Neurology) Physician Providers in US
44
States with Neuromuscular Medicine (Psychiatry & Neurology) Physician
931
Avg Claims per Provider

Nearby Neuromuscular Medicine (Psychiatry & Neurology) Physician Providers in Washington

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

Compare Neuromuscular Medicine (Psychiatry & Neurology) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ALAN LARSEN, D.O.'s specialty?
ALAN LARSEN, D.O. specializes in Neuromuscular Medicine (Psychiatry & Neurology) Physician and practices in TACOMA, Washington. Credentials: D.O..
Where is ALAN LARSEN, D.O. located?
ALAN LARSEN, D.O. is located at 9040 JACKSON AVE, TACOMA, WA, 98431. Phone: (253) 968-1440.
What is ALAN LARSEN, D.O.'s NPI number?
ALAN LARSEN, D.O.'s National Provider Identifier (NPI) is 1568524791, issued on 12/14/2006.
How many Neuromuscular Medicine (Psychiatry & Neurology) Physician providers are there in the US?
There are 336 Neuromuscular Medicine (Psychiatry & Neurology) Physician providers across 44 states in the US. The average Neuromuscular Medicine (Psychiatry & Neurology) Physician provider writes 931 Medicare Part D claims per year.
Does ALAN LARSEN, D.O. accept Medicare?
ALAN LARSEN, D.O. appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ALAN LARSEN, D.O.'s credentials?
ALAN LARSEN, D.O.'s NPI is 1568524791 with credentials D.O.. 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.
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