2026 NPPES data Anatomic Pathology & Clinical Pathology Physician NPI 1548346042 M.D.
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JAMES BIESECKER, M.D.

Anatomic Pathology & Clinical Pathology Physician in MOUNT VERNON, 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.
Prescribing volume
42
Medicare Part D claims · Anatomic Pathology & Clinical Pathology Physician avg: 284
What the federal data reveals: JAMES BIESECKER, M.D. is a Anatomic Pathology & Clinical Pathology Physician ([object Object]) practicing in MOUNT VERNON, Washington with a Medicare Part D prescribing footprint of 42 claims .

What stands out: JAMES BIESECKER, M.D. filed 42 Medicare Part D claims in 2023 across MOUNT VERNON, Washington. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

JAMES BIESECKER, M.D. 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).

JAMES BIESECKER, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 10/27/2006

NPI 1548346042

Primary specialty

Anatomic Pathology & Clinical Pathology Physician

Mid-sized

13,692 US NPIs in this specialty

Medicare Part D claims

42 85% vs specialty avg

2023 prescription claims

Specialty avg: 284

Specialty distribution in Washington

How Anatomic Pathology & Clinical Pathology Physician compares to other specialties among Washington providers

Washington providers

Anatomic Pathology & Clinical Pathology Physician share within Washington

1. Anatomic Pathology & Clinical Pathology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Anatomic Pathology & Clinical Pathology Physician share within Washington

Specialty board-certification context

Estimated specialty board-certified rate — Anatomic Pathology & Clinical Pathology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Anatomic Pathology & Clinical Pathology Physician ABMS/AOA estimate

Est. board-certified rate (Anatomic Pathology & Clinical Pathology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Anatomic Pathology & Clinical Pathology 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).

JAMES BIESECKER, M.D. is a Anatomic Pathology & Clinical Pathology Physician provider practicing in MOUNT VERNON, Washington, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1548346042. 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.

JAMES BIESECKER, M.D. appears in the CMS NPPES registry as a Anatomic Pathology & Clinical Pathology Physician provider holding M.D. credentials at 1310 E DIVISION ST, MOUNT VERNON, WA, 98274, with a listed phone of (360) 416-2254. NPI 1548346042 was issued on 10/27/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BIESECKER 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 42 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $777 in drug spend. 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.

Anatomic Pathology & Clinical Pathology Physician is a mid-sized specialty nationwide, with 13,692 enrolled providers across 55 states and an average of 284 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

1310 E DIVISION ST
MOUNT VERNON, WA 98274

Provider Details

NPI 1548346042
Specialty Anatomic Pathology & Clinical Pathology Physician
Credentials M.D.
Gender Male
NPI Issued 10/27/2006

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 JAMES BIESECKER, M.D.. To verify JAMES BIESECKER, M.D.'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.

Medicare Part D Prescribing Data

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

42
Total Claims
$777
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
86
Total Day Supply
2,546
Generic Drug Cost
$745

Patient Demographics

Average Patient Age
77.5 years
Avg HCC Risk Score
0.44

Anatomic Pathology & Clinical Pathology Physician Overview

How JAMES BIESECKER, M.D. fits within the Anatomic Pathology & Clinical Pathology Physician landscape nationally.

13,692
Anatomic Pathology & Clinical Pathology Physician Providers in US
55
States with Anatomic Pathology & Clinical Pathology Physician
284
Avg Claims per Provider

JAMES BIESECKER, M.D.'s 42 claims are below the specialty average of 284.

Nearby Anatomic Pathology & Clinical Pathology Physician Providers in Washington

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

Compare Anatomic Pathology & Clinical Pathology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JAMES BIESECKER, M.D.'s specialty?
JAMES BIESECKER, M.D. specializes in Anatomic Pathology & Clinical Pathology Physician and practices in MOUNT VERNON, Washington. Credentials: M.D..
How much does JAMES BIESECKER, M.D. prescribe under Medicare Part D?
In 2023, JAMES BIESECKER, M.D. wrote 42 Medicare Part D claims totaling $777 in drug costs for N/A beneficiaries.
Where is JAMES BIESECKER, M.D. located?
JAMES BIESECKER, M.D. is located at 1310 E DIVISION ST, MOUNT VERNON, WA, 98274. Phone: (360) 416-2254.
What is JAMES BIESECKER, M.D.'s NPI number?
JAMES BIESECKER, M.D.'s National Provider Identifier (NPI) is 1548346042, issued on 10/27/2006.
How many Anatomic Pathology & Clinical Pathology Physician providers are there in the US?
There are 13,692 Anatomic Pathology & Clinical Pathology Physician providers across 55 states in the US. The average Anatomic Pathology & Clinical Pathology Physician provider writes 284 Medicare Part D claims per year.
Does JAMES BIESECKER, M.D. accept Medicare?
JAMES BIESECKER, M.D. appears in CMS Medicare data with 42 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JAMES BIESECKER, M.D.'s credentials?
JAMES BIESECKER, M.D.'s NPI is 1548346042 with credentials M.D.. 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