2026 NPPES data Registered Nurse NPI 1366156218 FNP
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KAREN GREGORY, FNP

Registered Nurse in REDMOND, 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
801
Medicare Part D claims · 213 beneficiaries · Registered Nurse avg: 1K

What the federal data shows

KAREN GREGORY, FNP filed 801 Medicare Part D claims in 2023 as a Registered Nurse in REDMOND, Oregon.

801
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.

KAREN GREGORY, FNP's Medicare Part D volume vs every U.S. prescriber

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

801 Top 27% higher than 73% 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%). This entry sits in this band. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. 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 KAREN GREGORY, FNP?

Quality data not reported

NPI registry status

Active

Issued 01/05/2023

NPI 1366156218

Primary specialty

Registered Nurse

High-volume

175,652 US NPIs in this specialty

Medicare Part D claims

801 20% vs specialty avg

2023 prescription claims

Specialty avg: 1,000

Specialty distribution in Oregon

How Registered Nurse compares to other specialties among Oregon providers

Oregon providers

Registered Nurse share within Oregon

1. Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Registered Nurse share within Oregon

Specialty board-certification context

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

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

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

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

KAREN GREGORY, FNP appears in the CMS NPPES registry as a Registered Nurse provider holding FNP credentials at 211 NW LARCH AVE, REDMOND, OR, 97756, with a listed phone of (541) 548-2164. NPI 1366156218 was issued on 01/05/2023. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GREGORY 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 801 prescription claims written by this provider, covering 213 Medicare beneficiaries and totaling roughly $53K in drug spend, with an opioid prescribing rate of 5.6%. 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.

Registered Nurse is a high-volume specialty nationwide, with 175,652 enrolled providers across 56 states and an average of 1,000 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

211 NW LARCH AVE
REDMOND, OR 97756

Provider Details

NPI 1366156218
Specialty Registered Nurse
Credentials FNP
Gender Female
NPI Issued 01/05/2023

Hospital and facility affiliations

Facilities where KAREN GREGORY, 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.

ST CHARLES HEALTH SYSTEM INC
REDMOND, 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).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

801
Total Claims
$53K
Total Drug Cost
213
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,631
Total Day Supply
47,083
Generic Drug Cost
$16K
Opioid Claims
45 (5.6% rate)

Patient Demographics

Average Patient Age
74.1 years
Avg HCC Risk Score
1.07
Gender Split
71% female / 29% male
Age Distribution
<65: 13, 65-74: 106, 75-84: 69, 85+: 25

Top Prescribed Drugs (Medicare Part D)

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

What KAREN GREGORY, 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
43
Levothyroxine Sodium
37
Losartan Potassium
28
Fluoxetine Hcl
26
Hydrochlorothiazide
20
Gabapentin
19
Lisinopril
19
Trazodone Hcl
18
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
16
Tamsulosin Hcl
16

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

Registered Nurse Overview

How KAREN GREGORY, FNP fits within the Registered Nurse landscape nationally.

175,652
Registered Nurse Providers in US
56
States with Registered Nurse
1,000
Avg Claims per Provider

KAREN GREGORY, FNP's 801 claims are below the specialty average of 1,000.

Nearby Registered Nurse Providers in Oregon

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

Compare Registered Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is KAREN GREGORY, FNP's specialty?
KAREN GREGORY, FNP specializes in Registered Nurse and practices in REDMOND, Oregon. Credentials: FNP.
How much does KAREN GREGORY, FNP prescribe under Medicare Part D?
In 2023, KAREN GREGORY, FNP wrote 801 Medicare Part D claims totaling $53K in drug costs for 213 beneficiaries.
Where is KAREN GREGORY, FNP located?
KAREN GREGORY, FNP is located at 211 NW LARCH AVE, REDMOND, OR, 97756. Phone: (541) 548-2164.
What is KAREN GREGORY, FNP's NPI number?
KAREN GREGORY, FNP's National Provider Identifier (NPI) is 1366156218, issued on 01/05/2023.
Does KAREN GREGORY, FNP prescribe opioids?
Yes, KAREN GREGORY, FNP had 45 opioid claims in 2023 with an opioid prescribing rate of 5.6%.
How many Registered Nurse providers are there in the US?
There are 175,652 Registered Nurse providers across 56 states in the US. The average Registered Nurse provider writes 1,000 Medicare Part D claims per year.
What drugs does KAREN GREGORY, FNP prescribe most often?
Based on 2023 Medicare Part D data, KAREN GREGORY, FNP's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KAREN GREGORY, FNP accept Medicare?
KAREN GREGORY, FNP appears in CMS Medicare data with 801 Part D claims and 213 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KAREN GREGORY, FNP's credentials?
KAREN GREGORY, FNP's NPI is 1366156218 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