2026 NPPES data Specialist NPI 1902979891 MD
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WILLIAM BAADER, MD

Specialist in BELLINGHAM, 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
46
Medicare Part D claims · 29 beneficiaries · Specialist avg: 1K
What the federal data reveals: WILLIAM BAADER, MD is a Specialist ([object Object]) practicing in BELLINGHAM, Washington with a Medicare Part D prescribing footprint of 46 claims across 29 beneficiaries .

What stands out: WILLIAM BAADER, MD filed 46 Medicare Part D claims in 2023 across BELLINGHAM, Washington. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

WILLIAM BAADER, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 11/16/2006

NPI 1902979891

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

46 97% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

Specialty distribution in Washington

How Specialist compares to other specialties among Washington providers

Washington providers

Specialist share within Washington

1. Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Specialist share within Washington

Specialty board-certification context

Estimated specialty board-certified rate — Specialist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Specialist ABMS/AOA estimate

Est. board-certified rate (Specialist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Specialist) — 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).

WILLIAM BAADER, MD is a Specialist provider practicing in BELLINGHAM, Washington, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1902979891. 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.

WILLIAM BAADER, MD appears in the CMS NPPES registry as a Specialist provider holding MD credentials at 3015 SQUALICUM PKWY, BELLINGHAM, WA, 98225, with a listed phone of (360) 676-1277. NPI 1902979891 was issued on 11/16/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BAADER 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 46 prescription claims written by this provider, covering 29 Medicare beneficiaries and totaling roughly $298 in drug spend, with an opioid prescribing rate of 54.3%. 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.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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

3015 SQUALICUM PKWY
BELLINGHAM, WA 98225

Provider Details

NPI 1902979891
Specialty Specialist
Credentials MD
Gender Male
NPI Issued 11/16/2006

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 WILLIAM BAADER, MD. To verify WILLIAM BAADER, MD'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.

46
Total Claims
$298
Total Drug Cost
29
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
46
Total Day Supply
211
Brand Drug Cost
$0
Generic Drug Cost
$298
Opioid Claims
25 (54.3% rate)
Antibiotic Claims
19

Patient Demographics

Average Patient Age
73.7 years
Avg HCC Risk Score
1.07
Gender Split
48% female / 52% 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
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
23
Cephalexin
12

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

Specialist Overview

How WILLIAM BAADER, MD fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

WILLIAM BAADER, MD's 46 claims are below the specialty average of 1,474.

Nearby Specialist Providers in Washington

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

Compare Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is WILLIAM BAADER, MD's specialty?
WILLIAM BAADER, MD specializes in Specialist and practices in BELLINGHAM, Washington. Credentials: MD.
How much does WILLIAM BAADER, MD prescribe under Medicare Part D?
In 2023, WILLIAM BAADER, MD wrote 46 Medicare Part D claims totaling $298 in drug costs for 29 beneficiaries.
Where is WILLIAM BAADER, MD located?
WILLIAM BAADER, MD is located at 3015 SQUALICUM PKWY, BELLINGHAM, WA, 98225. Phone: (360) 676-1277.
What is WILLIAM BAADER, MD's NPI number?
WILLIAM BAADER, MD's National Provider Identifier (NPI) is 1902979891, issued on 11/16/2006.
Does WILLIAM BAADER, MD prescribe opioids?
Yes, WILLIAM BAADER, MD had 25 opioid claims in 2023 with an opioid prescribing rate of 54.3%.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does WILLIAM BAADER, MD prescribe most often?
Based on 2023 Medicare Part D data, WILLIAM BAADER, MD's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Cephalexin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does WILLIAM BAADER, MD accept Medicare?
WILLIAM BAADER, MD appears in CMS Medicare data with 46 Part D claims and 29 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WILLIAM BAADER, MD's credentials?
WILLIAM BAADER, MD's NPI is 1902979891 with credentials MD. 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