NPI registry status
Active
2026 NPPES data Hospice and Palliative Medicine (Internal Medicine) Physician NPI 1518340322 M.D.
Verify on CMS → Elena Hamilton, M.D.
Hospice and Palliative Medicine (Internal Medicine) Physician in Portland, 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 1,524 in Hospice and Palliative Medicine (Internal 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
294
Medicare Part D claims · 132 beneficiaries · Hospice and Palliative Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Elena Hamilton, M.D. filed 294 Medicare Part D claims in 2023 as a Hospice and Palliative Medicine (Internal Medicine) Physician in Portland, Oregon, prescribing 94% generic.
- 294
- Part D claims, 2023
- 94%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Elena Hamilton, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
294 49th percentile higher than 49% 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 certification likely (heuristic, not verified)
Elena Hamilton, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Elena Hamilton, M.D.?
Quality data not reportedPrimary specialty
Hospice and Palliative Medicine (Internal Medicine) Physician
Medicare Part D claims
294 77% vs specialty avg
Specialty distribution in Oregon
How Hospice and Palliative Medicine (Internal 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 Hospice and Palliative Medicine (Internal 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).
Elena Hamilton, M.D. appears in the CMS NPPES registry as a Hospice and Palliative Medicine (Internal Medicine) Physician provider holding M.D. credentials at 3600 N INTERSTATE AVE, Portland, OR, 97227, with a listed phone of (800) 813-2000. NPI 1518340322 was issued on 06/30/2015.
Medicare Part D records for calendar year 2023 show 294 prescription claims written by this provider, covering 132 Medicare beneficiaries and totaling roughly $19K in drug spend, split 6% brand-name and 94% generic by claim count, with an opioid prescribing rate of 67.7%.
Hospice and Palliative Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 1,524 enrolled providers across 51 states and an average of 1,275 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 | 1518340322 |
|---|---|
| Specialty | Hospice and Palliative Medicine (Internal Medicine) Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 06/30/2015 |
Hospital and facility affiliations
Facilities where Elena Hamilton, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Kaiser Foundation Health Plan OF The Northwest
Clackamas, OR
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Generic-heavy
Elena Hamilton, M.D. - brand share 6.0%
Hospice and Palliative Medicine (Internal Medicine) Physician average
6% brand-name claims vs 94% generic, on 294 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
294
Total Claims
$19K
Total Drug Cost
132
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 314
- Total Day Supply
- 7,589
- Brand vs Generic
- 6% brand / 94% generic
- Brand Drug Cost
- $10K
- Generic Drug Cost
- $9K
- Opioid Claims
- 199 (67.7% rate)
Patient Demographics
- Average Patient Age
- 71.0 years
- Avg HCC Risk Score
- 2.95
- Gender Split
- 49% female / 51% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Elena Hamilton, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Oxycodone Hcl
Oxycodone Hcl
91 claims
- Morphine Sulfate Er
Morphine Sulfate Er
48 claims
- Gabapentin 18
Gabapentin
18 claims
- Fentanyl 15
Fentanyl
15 claims
- Oxycontin 13
Oxycontin
13 claims
- Hydrocodone-Acetam… 12
Hydrocodone-Acetaminophen
12 claims
- Olanzapine 11
Olanzapine
11 claims
| Drug | Claims |
|---|---|
| Oxycodone Hcl | 91 |
| Morphine Sulfate Er Morphine Sulfate | 48 |
| Gabapentin | 18 |
| Fentanyl | 15 |
| Oxycontin Oxycodone Hcl | 13 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 12 |
| Olanzapine | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Hospice and Palliative Medicine (Internal Medicine) Physician in OR →
All providers in Oregon →
Compare specialties →
Hospice and Palliative Medicine (Internal Medicine) Physician Overview
How Elena Hamilton, M.D. fits within the Hospice and Palliative Medicine (Internal Medicine) Physician landscape nationally.
1,524
Hospice and Palliative Medicine (Internal Medicine) Physician Providers in US
51
States with Hospice and Palliative Medicine (Internal Medicine) Physician
1,275
Avg Claims per Provider
Elena Hamilton, M.D.'s 294 claims are below the specialty average of 1,275.
Nearby Hospice and Palliative Medicine (Internal Medicine) Physician Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Hamilton.
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 Hospice and Palliative Medicine (Internal 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.
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Frequently Asked Questions
What is Elena Hamilton, M.D.'s specialty? ▼
Elena Hamilton, M.D. specializes in Hospice and Palliative Medicine (Internal Medicine) Physician and practices in Portland, Oregon. Credentials: M.D..
How much does Elena Hamilton, M.D. prescribe under Medicare Part D? ▼
In 2023, Elena Hamilton, M.D. wrote 294 Medicare Part D claims totaling $19K in drug costs for 132 beneficiaries.
Where is Elena Hamilton, M.D. located? ▼
Elena Hamilton, M.D. is located at 3600 N INTERSTATE AVE, Portland, OR, 97227. Phone: (800) 813-2000.
What is Elena Hamilton, M.D.'s NPI number? ▼
Elena Hamilton, M.D.'s National Provider Identifier (NPI) is 1518340322, issued on 06/30/2015.
Does Elena Hamilton, M.D. prescribe more brand-name or generic drugs? ▼
Elena Hamilton, M.D.'s prescribing is 6% brand-name and 94% generic drugs by claim count, with $10K in brand drug costs.
Does Elena Hamilton, M.D. prescribe opioids? ▼
Yes, Elena Hamilton, M.D. had 199 opioid claims in 2023 with an opioid prescribing rate of 67.7%.
How many Hospice and Palliative Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 1,524 Hospice and Palliative Medicine (Internal Medicine) Physician providers across 51 states in the US. The average Hospice and Palliative Medicine (Internal Medicine) Physician provider writes 1,275 Medicare Part D claims per year.
What drugs does Elena Hamilton, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Elena Hamilton, M.D.'s most frequently prescribed drugs include Oxycodone Hcl, Morphine Sulfate Er, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Elena Hamilton, M.D. accept Medicare? ▼
Elena Hamilton, M.D. appears in CMS Medicare data with 294 Part D claims and 132 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Elena Hamilton, M.D.'s credentials? ▼
Elena Hamilton, M.D.'s NPI is 1518340322 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
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.