NPI registry status
Active
2026 NPPES data Allergy & Immunology Physician NPI 1528166287 MD
Verify on CMS → William Webster, MD
Allergy & Immunology Physician in Coos Bay, Oregon.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,390 in Allergy & Immunology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
788
Medicare Part D claims · 245 beneficiaries · Allergy & Immunology Physician avg: 764
Industry payments
$22.18
1 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
William Webster, MD filed 788 Medicare Part D claims in 2023 as a Allergy & Immunology Physician in Coos Bay, Oregon.
- 788
- Part D claims, 2023
- $22.18
- industry payments (Sunshine Act)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
William Webster, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
788 Top 29% higher than 71% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
William Webster, MD 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).
What does the federal data show about William Webster, MD?
Quality data not reportedPrimary specialty
Allergy & Immunology Physician
Medicare Part D claims
788 3% vs specialty avg
Specialty distribution in Oregon
How Allergy & Immunology Physician compares to other specialties among Oregon providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Allergy & Immunology Physician. Verify directly:
How MIPS and board certification work
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 Webster, MD appears in the CMS NPPES registry as a Allergy & Immunology Physician provider holding MD credentials at 1900 WOODLAND DRIVE, Coos Bay, OR, 97420, with a listed phone of (541) 267-5151. NPI 1528166287 was issued on 09/20/2006.
Medicare Part D records for calendar year 2023 show 788 prescription claims written by this provider, covering 245 Medicare beneficiaries and totaling roughly $34K in drug spend, with an opioid prescribing rate of 3.8%.
Allergy & Immunology Physician is a narrow specialty nationwide, with 3,390 enrolled providers across 52 states and an average of 764 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
Provider Details
| NPI | 1528166287 |
|---|---|
| Specialty | Allergy & Immunology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 09/20/2006 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for William Webster, MD. Source: openpaymentsdata.cms.gov.
Total received
$22
Largest payer
MIMEDX Group, Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
788
Total Claims
$34K
Total Drug Cost
245
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 985
- Total Day Supply
- 22,629
- Generic Drug Cost
- $13K
- Opioid Claims
- 30 (3.8% rate)
- Antibiotic Claims
- 124
Patient Demographics
- Average Patient Age
- 71.9 years
- Avg HCC Risk Score
- 1.27
- Gender Split
- 62% female / 38% male
- Age Distribution
- <65: 36, 65-74: 109, 75-84: 70, 85+: 30
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What William Webster, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ipratropium Bromide
Ipratropium Bromide
79 claims
- Fluticasone Propio…
Fluticasone Propionate
68 claims
- Prednisone
Prednisone
66 claims
- Mupirocin
Mupirocin
62 claims
- Famotidine
Famotidine
59 claims
- Azelastine Hcl
Azelastine Hcl
52 claims
- Montelukast Sodium
Montelukast Sodium
45 claims
- Doxycycline Hyclate
Doxycycline Hyclate
38 claims
| Drug | Claims |
|---|---|
| Ipratropium Bromide | 79 |
| Fluticasone Propionate | 68 |
| Prednisone | 66 |
| Mupirocin | 62 |
| Famotidine | 59 |
| Azelastine Hcl | 52 |
| Montelukast Sodium | 45 |
| Doxycycline Hyclate | 38 |
| Ofloxacin | 35 |
| Azithromycin | 31 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Allergy & Immunology Physician Overview
How William Webster, MD fits within the Allergy & Immunology Physician landscape nationally.
3,390
Allergy & Immunology Physician Providers in US
52
States with Allergy & Immunology Physician
764
Avg Claims per Provider
William Webster, MD's 788 claims are above the specialty average of 764.
Nearby Allergy & Immunology Physician Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Webster.
Dr. Clifford Anderson
MD
Portland, OR
Dr. Laurel Anderson Cowell
MD
Portland, OR
Dr. Karen Anstey
M.D.
Portland, OR
Dr. Kristyn Anthony
M.D.
Tualatin, OR
Dr. Jennifer Bane
PA-C
Portland, OR
Compare Allergy & Immunology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Oregon medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Allergy & Immunology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is William Webster, MD's specialty? ▼
William Webster, MD specializes in Allergy & Immunology Physician and practices in Coos Bay, Oregon. Credentials: MD.
How much does William Webster, MD prescribe under Medicare Part D? ▼
In 2023, William Webster, MD wrote 788 Medicare Part D claims totaling $34K in drug costs for 245 beneficiaries.
Where is William Webster, MD located? ▼
William Webster, MD is located at 1900 WOODLAND DRIVE, Coos Bay, OR, 97420. Phone: (541) 267-5151.
What is William Webster, MD's NPI number? ▼
William Webster, MD's National Provider Identifier (NPI) is 1528166287, issued on 09/20/2006.
Does William Webster, MD prescribe opioids? ▼
Yes, William Webster, MD had 30 opioid claims in 2023 with an opioid prescribing rate of 3.8%.
How many Allergy & Immunology Physician providers are there in the US? ▼
There are 3,390 Allergy & Immunology Physician providers across 52 states in the US. The average Allergy & Immunology Physician provider writes 764 Medicare Part D claims per year.
What drugs does William Webster, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, William Webster, MD's most frequently prescribed drugs include Ipratropium Bromide, Fluticasone Propionate, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does William Webster, MD accept Medicare? ▼
William Webster, MD appears in CMS Medicare data with 788 Part D claims and 245 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Webster, MD's credentials? ▼
William Webster, MD's NPI is 1528166287 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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.