NPI registry status
Active
2026 NPPES data Emergency Medicine Physician NPI 1225048325 MD
Verify on CMS → William Foster, MD
Emergency Medicine Physician in Florence, 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 64,463 in Emergency Medicine 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
953
Medicare Part D claims · 233 beneficiaries · Emergency Medicine Physician avg: 352
What the federal data shows
William Foster, MD filed 953 Medicare Part D claims in 2023 as an Emergency Medicine Physician in Florence, Oregon.
- 953
- Part D claims, 2023
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 Foster, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
953 Top 25% higher than 75% 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 Foster, 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 Foster, MD?
Quality data not reportedPrimary specialty
Emergency Medicine Physician
Medicare Part D claims
953 171% vs specialty avg
Specialty distribution in Oregon
How Emergency Medicine 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 Emergency Medicine 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 Foster, MD appears in the CMS NPPES registry as an Emergency Medicine Physician provider holding MD credentials at 400 9TH ST, Florence, OR, 97439, with a listed phone of (541) 997-8412. NPI 1225048325 was issued on 08/09/2006.
Medicare Part D records for calendar year 2023 show 953 prescription claims written by this provider, covering 233 Medicare beneficiaries and totaling roughly $83K in drug spend, with an opioid prescribing rate of 10.5%.
Emergency Medicine Physician is a high-volume specialty nationwide, with 64,463 enrolled providers across 56 states and an average of 352 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 | 1225048325 |
|---|---|
| Specialty | Emergency Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 08/09/2006 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
953
Total Claims
$83K
Total Drug Cost
233
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,375
- Total Day Supply
- 35,188
- Generic Drug Cost
- $24K
- Opioid Claims
- 100 (10.5% rate)
- Antibiotic Claims
- 89
Patient Demographics
- Average Patient Age
- 70.8 years
- Avg HCC Risk Score
- 1.21
- Gender Split
- 59% female / 41% male
- Age Distribution
- <65: 50, 65-74: 102, 75-84: 59, 85+: 22
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What William Foster, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Oxycodone Hcl
Oxycodone Hcl
42 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
34 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
28 claims
- Gabapentin
Gabapentin
28 claims
- Trazodone Hcl
Trazodone Hcl
27 claims
- Atorvastatin Calcium
Atorvastatin Calcium
24 claims
- Lisinopril
Lisinopril
23 claims
- Metoprolol Succinate
Metoprolol Succinate
22 claims
| Drug | Claims |
|---|---|
| Oxycodone Hcl | 42 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 34 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 28 |
| Gabapentin | 28 |
| Trazodone Hcl | 27 |
| Atorvastatin Calcium | 24 |
| Lisinopril | 23 |
| Metoprolol Succinate | 22 |
| Ondansetron Odt Ondansetron | 21 |
| Losartan Potassium | 19 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Emergency Medicine Physician Overview
How William Foster, MD fits within the Emergency Medicine Physician landscape nationally.
64,463
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider
William Foster, MD's 953 claims are above the specialty average of 352.
Nearby Emergency Medicine Physician Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Foster.
Dr. Andrew Adamski
MD
Redmond, OR
Dr. Darren Alexander
MD
Portland, OR
Dr. Kevin Allan
M.D.
Springfield, OR
Dr. McKaila Allcorn
DO
Lincoln City, OR
Dr. Jacoby Allen
D.O.
Redmond, OR
Compare Emergency Medicine 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 Emergency Medicine 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.
Healthcare Guides
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
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Explore Oregon
Frequently Asked Questions
What is William Foster, MD's specialty? ▼
William Foster, MD specializes in Emergency Medicine Physician and practices in Florence, Oregon. Credentials: MD.
How much does William Foster, MD prescribe under Medicare Part D? ▼
In 2023, William Foster, MD wrote 953 Medicare Part D claims totaling $83K in drug costs for 233 beneficiaries.
Where is William Foster, MD located? ▼
William Foster, MD is located at 400 9TH ST, Florence, OR, 97439. Phone: (541) 997-8412.
What is William Foster, MD's NPI number? ▼
William Foster, MD's National Provider Identifier (NPI) is 1225048325, issued on 08/09/2006.
Does William Foster, MD prescribe opioids? ▼
Yes, William Foster, MD had 100 opioid claims in 2023 with an opioid prescribing rate of 10.5%.
How many Emergency Medicine Physician providers are there in the US? ▼
There are 64,463 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does William Foster, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, William Foster, MD's most frequently prescribed drugs include Oxycodone Hcl, Hydrocodone-Acetaminophen, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does William Foster, MD accept Medicare? ▼
William Foster, MD appears in CMS Medicare data with 953 Part D claims and 233 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Foster, MD's credentials? ▼
William Foster, MD's NPI is 1225048325 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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.