2026 NPPES data Registered Nurse NPI 1134782691
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GRETCHEN WANINGER

Registered Nurse in ROANOKE, Virginia. 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 · 434 beneficiaries · Registered Nurse avg: 1K
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

GRETCHEN WANINGER filed 1,591 Medicare Part D claims in 2023 as a Registered Nurse in ROANOKE, Virginia, prescribing 92% generic.

2K
Part D claims, 2023
92%
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.

GRETCHEN WANINGER's Medicare Part D volume vs every U.S. prescriber

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

1,591 Top 19% higher than 81% 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%). This entry sits in this band. 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 GRETCHEN WANINGER?

Quality data not reported

NPI registry status

Active

Issued 04/19/2019

NPI 1134782691

Primary specialty

Registered Nurse

High-volume

175,652 US NPIs in this specialty

Medicare Part D claims

1,591 59% vs specialty avg

2023 prescription claims

Specialty avg: 1,000

Specialty distribution in Virginia

How Registered Nurse compares to other specialties among Virginia providers

Virginia providers

Registered Nurse share within Virginia

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

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).

GRETCHEN WANINGER appears in the CMS NPPES registry as a Registered Nurse provider at 6415 PETERS CREEK RD, ROANOKE, VA, 24019, with a listed phone of (540) 265-5500. NPI 1134782691 was issued on 04/19/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WANINGER 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 1,591 prescription claims written by this provider, covering 434 Medicare beneficiaries and totaling roughly $103K in drug spend, split 8% brand-name and 92% generic by claim count. 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

6415 PETERS CREEK RD
ROANOKE, VA 24019

Provider Details

NPI 1134782691
Specialty Registered Nurse
Gender Female
NPI Issued 04/19/2019

Hospital and facility affiliations

Facilities where GRETCHEN WANINGER 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.

CARILION HEALTHCARE CORPORATION
ROANOKE, VA

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

GRETCHEN WANINGER — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 1,591 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.

1,591
Total Claims
$103K
Total Drug Cost
434
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,305
Total Day Supply
91,911
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$81K
Generic Drug Cost
$22K
Antibiotic Claims
126

Patient Demographics

Average Patient Age
71.0 years
Avg HCC Risk Score
1.15
Gender Split
68% female / 32% male
Age Distribution
<65: 75, 65-74: 205, 75-84: 113, 85+: 41

Top Prescribed Drugs (Medicare Part D)

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

What GRETCHEN WANINGER 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
Losartan Potassium
63
Hydrochlorothiazide
59
Omeprazole
57
Atorvastatin Calcium
52
Prednisone
51
Amlodipine Besylate
48
Lisinopril
46
Levothyroxine Sodium
45
Cephalexin
39
Diclofenac Sodium
36

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

Registered Nurse Overview

How GRETCHEN WANINGER 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

GRETCHEN WANINGER's 1,591 claims are above the specialty average of 1,000.

Nearby Registered Nurse Providers in Virginia

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

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

Frequently Asked Questions

What is GRETCHEN WANINGER's specialty?
GRETCHEN WANINGER specializes in Registered Nurse and practices in ROANOKE, Virginia.
How much does GRETCHEN WANINGER prescribe under Medicare Part D?
In 2023, GRETCHEN WANINGER wrote 1,591 Medicare Part D claims totaling $103K in drug costs for 434 beneficiaries.
Where is GRETCHEN WANINGER located?
GRETCHEN WANINGER is located at 6415 PETERS CREEK RD, ROANOKE, VA, 24019. Phone: (540) 265-5500.
What is GRETCHEN WANINGER's NPI number?
GRETCHEN WANINGER's National Provider Identifier (NPI) is 1134782691, issued on 04/19/2019.
Does GRETCHEN WANINGER prescribe more brand-name or generic drugs?
GRETCHEN WANINGER's prescribing is 8% brand-name and 92% generic drugs by claim count, with $81K in brand drug costs.
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 GRETCHEN WANINGER prescribe most often?
Based on 2023 Medicare Part D data, GRETCHEN WANINGER's most frequently prescribed drugs include Losartan Potassium, Hydrochlorothiazide, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GRETCHEN WANINGER accept Medicare?
GRETCHEN WANINGER appears in CMS Medicare data with 1,591 Part D claims and 434 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GRETCHEN WANINGER's credentials?
GRETCHEN WANINGER's NPI is 1134782691. 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