Ashley Chan, FNP
Primary Care Nurse Practitioner in Milwaukie, 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 10,138 in Primary Care Nurse Practitioner, 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.
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Ashley Chan, FNP filed 9,238 Medicare Part D claims in 2023 as a Primary Care Nurse Practitioner in Milwaukie, Oregon, prescribing 89% generic.
- 9K
- Part D claims, 2023
- 89%
- generic prescribing
- $15.44
- 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.
Ashley Chan, FNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023 — across all CMS prescribers nationally
9,238 Top 2% higher than 98% 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
What does the federal data show about Ashley Chan, FNP?
Quality data not reportedPrimary specialty
Medicare Part D claims
Specialty distribution in Oregon
How Primary Care Nurse Practitioner compares to other specialties among Oregon providers
Largest specialties in Oregon (% of in-state providers)
Primary Care Nurse Practitioner ranks #112 among Oregon's specialties (0.1% of in-state providers)
Each bar is a specialty's share of the Oregon provider total, by primary NUCC taxonomy. The highlighted bar is Primary Care Nurse Practitioner; the long tail of smaller specialties is omitted for legibility.
Specialty board-certification context
Estimated specialty board-certified rate — Primary Care Nurse Practitioner (ABMS / AOA reference)
- Est. board-certified rate
- 78%
- Primary Care Nurse Practitioner ABMS/AOA estimate
Est. board-certified rate (Primary Care Nurse Practitioner) — ABMS / AOA estimate
Verify credentials
- Verify via ABMS free public lookup
- Verify via AOA osteopathic boards
- Specialty volume Primary Care Nurse Practitioner US NPIs
Specialty board-certified rate — Primary Care Nurse Practitioner estimate
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus Maintenance of Certification cycles. CMS does not publish a per-provider board-certification field; the figure shown is the specialty-level estimated rate from ABMS / AOA reference data.
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).
Ashley Chan, FNP appears in the CMS NPPES registry as a Primary Care Nurse Practitioner provider holding FNP credentials at 10330 SE 32ND AVE STE 110, Milwaukie, OR, 97222, with a listed phone of (503) 513-1300. NPI 1235692484 was issued on 04/12/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Chan 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 9,238 prescription claims written by this provider, covering 278 Medicare beneficiaries and totaling roughly $705K in drug spend, split 10% brand-name and 89% generic by claim count, with an opioid prescribing rate of 7.1%. 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.
Primary Care Nurse Practitioner is a mid-sized specialty nationwide, with 10,138 enrolled providers across 54 states and an average of 1,363 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 | 1235692484 |
|---|---|
| Specialty | Primary Care Nurse Practitioner |
| Credentials | FNP |
| Gender | Female |
| NPI Issued | 04/12/2019 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm Ashley Chan, FNP's current license status, disciplinary history, and board certifications with the Oregon Medical Board in Oregon before relying on this page for a clinical or care decision.
How we sourced this profile
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 Ashley Chan, FNP. Source: openpaymentsdata.cms.gov.
Total received
$15
Largest payer
PFIZER 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.
Brand vs generic prescribing mix · Typical
10% brand-name claims vs 89% generic, on 9,238 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.
Prescribing Breakdown
- 30-Day Fills
- 9,693
- Total Day Supply
- 256,956
- Brand vs Generic
- 10% brand / 89% generic
- Brand Drug Cost
- $377K
- Generic Drug Cost
- $322K
- Opioid Claims
- 659 (7.1% rate)
- Antibiotic Claims
- 168
Patient Demographics
- Average Patient Age
- 78.5 years
- Avg HCC Risk Score
- 2.71
- Gender Split
- 73% female / 27% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ashley Chan, FNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Donepezil Hcl
Donepezil Hcl
348 claims
- Memantine Hcl
Memantine Hcl
347 claims
- Omeprazole
Omeprazole
299 claims
- Furosemide
Furosemide
297 claims
- Atorvastatin Calcium
Atorvastatin Calcium
284 claims
- Oxycodone Hcl
Oxycodone Hcl
277 claims
- Gabapentin
Gabapentin
269 claims
- Levothyroxine Sodium
Levothyroxine Sodium
239 claims
| Drug | Claims |
|---|---|
| Donepezil Hcl | 348 |
| Memantine Hcl | 347 |
| Omeprazole | 299 |
| Furosemide | 297 |
| Atorvastatin Calcium | 284 |
| Oxycodone Hcl | 277 |
| Gabapentin | 269 |
| Levothyroxine Sodium | 239 |
| Metoprolol Succinate | 230 |
| Risperidone | 200 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Primary Care Nurse Practitioner Overview
How Ashley Chan, FNP fits within the Primary Care Nurse Practitioner landscape nationally.
Ashley Chan, FNP's 9,238 claims are above the specialty average of 1,363.
Nearby Primary Care Nurse Practitioner Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Chan.
Compare Primary Care Nurse Practitioner 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 Primary Care Nurse Practitioner 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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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