2026 NPPES data Family Nurse Practitioner NPI 1558770149 FNP
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RUTH MAXWELL, FNP

Family Nurse Practitioner 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
2K
Medicare Part D claims · 238 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

RUTH MAXWELL, FNP filed 2,224 Medicare Part D claims in 2023 as a Family Nurse Practitioner in PORTLAND, Oregon, prescribing 85% generic.

2K
Part D claims, 2023
85%
generic prescribing

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.

RUTH MAXWELL, FNP's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

2,224 Top 15% higher than 85% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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 RUTH MAXWELL, FNP?

Quality data not reported

NPI registry status

Active

Issued 08/07/2014

NPI 1558770149

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

2,224 82% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

Specialty distribution in Oregon

How Family Nurse Practitioner compares to other specialties among Oregon providers

Oregon providers

Family Nurse Practitioner share within Oregon

1. Family Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Family Nurse Practitioner share within Oregon

Specialty board-certification context

Estimated specialty board-certified rate — Family Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Family Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Family Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Family Nurse Practitioner) — 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).

RUTH MAXWELL, FNP appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding FNP credentials at 3653 SE 34TH AVE, PORTLAND, OR, 97202, with a listed phone of (503) 988-5140. NPI 1558770149 was issued on 08/07/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MAXWELL 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 2,224 prescription claims written by this provider, covering 238 Medicare beneficiaries and totaling roughly $184K in drug spend, split 15% brand-name and 85% generic by claim count, with an opioid prescribing rate of 1.9%. 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.

Family Nurse Practitioner is a high-volume specialty nationwide, with 209,817 enrolled providers across 56 states and an average of 1,222 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

3653 SE 34TH AVE
PORTLAND, OR 97202

Provider Details

NPI 1558770149
Specialty Family Nurse Practitioner
Credentials FNP
Gender Female
NPI Issued 08/07/2014

Hospital and facility affiliations

Facilities where RUTH MAXWELL, FNP 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.

MULTNOMAH COUNTY
PORTLAND, 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 · Typical

RUTH MAXWELL, FNP — brand share 15.0%
Specialty average (est.)

15% brand-name claims vs 85% generic, on 2,224 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.

2,224
Total Claims
$184K
Total Drug Cost
238
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,660
Total Day Supply
103,611
Brand vs Generic
15% brand / 85% generic
Brand Drug Cost
$150K
Generic Drug Cost
$33K
Opioid Claims
42 (1.9% rate)
Antibiotic Claims
18

Patient Demographics

Average Patient Age
67.8 years
Avg HCC Risk Score
1.35
Gender Split
58% female / 42% male
Age Distribution
<65: 60, 65-74: 113, 75-84: 52, 85+: 13

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What RUTH MAXWELL, FNP prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
176
Lisinopril
120
Gabapentin
106
Amlodipine Besylate
80
Losartan Potassium
67
Albuterol Sulfate Hfa
Albuterol Sulfate
58
Fluticasone Propionate
58
Omeprazole
54
Metoprolol Succinate
43
Alendronate Sodium
39

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Family Nurse Practitioner Overview

How RUTH MAXWELL, FNP fits within the Family Nurse Practitioner landscape nationally.

209,817
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider

RUTH MAXWELL, FNP's 2,224 claims are above the specialty average of 1,222.

Nearby Family Nurse Practitioner Providers in Oregon

Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as MAXWELL.

Compare Family Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is RUTH MAXWELL, FNP's specialty?
RUTH MAXWELL, FNP specializes in Family Nurse Practitioner and practices in PORTLAND, Oregon. Credentials: FNP.
How much does RUTH MAXWELL, FNP prescribe under Medicare Part D?
In 2023, RUTH MAXWELL, FNP wrote 2,224 Medicare Part D claims totaling $184K in drug costs for 238 beneficiaries.
Where is RUTH MAXWELL, FNP located?
RUTH MAXWELL, FNP is located at 3653 SE 34TH AVE, PORTLAND, OR, 97202. Phone: (503) 988-5140.
What is RUTH MAXWELL, FNP's NPI number?
RUTH MAXWELL, FNP's National Provider Identifier (NPI) is 1558770149, issued on 08/07/2014.
Does RUTH MAXWELL, FNP prescribe more brand-name or generic drugs?
RUTH MAXWELL, FNP's prescribing is 15% brand-name and 85% generic drugs by claim count, with $150K in brand drug costs.
Does RUTH MAXWELL, FNP prescribe opioids?
Yes, RUTH MAXWELL, FNP had 42 opioid claims in 2023 with an opioid prescribing rate of 1.9%.
How many Family Nurse Practitioner providers are there in the US?
There are 209,817 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does RUTH MAXWELL, FNP prescribe most often?
Based on 2023 Medicare Part D data, RUTH MAXWELL, FNP's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does RUTH MAXWELL, FNP accept Medicare?
RUTH MAXWELL, FNP appears in CMS Medicare data with 2,224 Part D claims and 238 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RUTH MAXWELL, FNP's credentials?
RUTH MAXWELL, FNP's NPI is 1558770149 with credentials FNP. 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