2026 NPPES data Hospice and Palliative Medicine (Internal Medicine) Physician NPI 1518340322 M.D.
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ELENA HAMILTON, M.D.

Hospice and Palliative Medicine (Internal Medicine) Physician in PORTLAND, Oregon. 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
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
What the federal data reveals: ELENA HAMILTON, M.D. is a Hospice and Palliative Medicine (Internal Medicine) Physician ([object Object]) practicing in PORTLAND, Oregon with a Medicare Part D prescribing footprint of 294 claims across 132 beneficiaries — 6% brand-name prescribing .

What stands out: ELENA HAMILTON, M.D. filed 294 Medicare Part D claims in 2023 across PORTLAND, Oregon. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

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).

ELENA HAMILTON, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 06/30/2015

NPI 1518340322

Primary specialty

Hospice and Palliative Medicine (Internal Medicine) Physician

Niche

1,524 US NPIs in this specialty

Medicare Part D claims

294 77% vs specialty avg

2023 prescription claims

Specialty avg: 1,275

Specialty distribution in Oregon

How Hospice and Palliative Medicine (Internal Medicine) Physician compares to other specialties among Oregon providers

Oregon providers

Hospice and Palliative Medicine (Internal Medicine) Physician share within Oregon

1. Hospice and Palliative Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Hospice and Palliative Medicine (Internal Medicine) Physician share within Oregon

Specialty board-certification context

Estimated specialty board-certified rate — Hospice and Palliative Medicine (Internal Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Hospice and Palliative Medicine (Internal Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Hospice and Palliative Medicine (Internal Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Hospice and Palliative Medicine (Internal Medicine) 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).

ELENA HAMILTON, M.D. is a Hospice and Palliative Medicine (Internal Medicine) Physician provider practicing in PORTLAND, Oregon, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1518340322. 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.

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. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HAMILTON 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 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%. 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.

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

3600 N INTERSTATE AVE
PORTLAND, OR 97227

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%
Specialty average (est.)

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.

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.

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.

Compare Hospice and Palliative Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

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

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