NPI registry status
Active
2026 NPPES data Gerontology Nurse Practitioner NPI 1457540171 GNP, APNP
Verify on CMS → Kelly Felmer, GNP, APNP
Gerontology Nurse Practitioner in Green Bay, Wisconsin.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 9,706 in Gerontology 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.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
102
Medicare Part D claims · 19 beneficiaries · Gerontology Nurse Practitioner avg: 1K
Generic prescribing
44%
generic claims · 31% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Kelly Felmer, GNP, APNP filed 102 Medicare Part D claims in 2023 as a Gerontology Nurse Practitioner in Green Bay, Wisconsin, prescribing 44% generic.
- 102
- Part D claims, 2023
- 44%
- 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.
Kelly Felmer, GNP, APNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
102 35th percentile higher than 35% 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 Kelly Felmer, GNP, APNP?
Quality data not reportedPrimary specialty
Gerontology Nurse Practitioner
Medicare Part D claims
102 92% vs specialty avg
Specialty distribution in Wisconsin
How Gerontology Nurse Practitioner compares to other specialties among Wisconsin providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Gerontology Nurse Practitioner. Verify directly:
How MIPS and board certification work
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).
Kelly Felmer, GNP, APNP appears in the CMS NPPES registry as a Gerontology Nurse Practitioner provider holding GNP, APNP credentials at 1601 S. WEBSTER AVENUE, Green Bay, WI, 54301, with a listed phone of (920) 343-6443. NPI 1457540171 was issued on 10/18/2007.
Medicare Part D records for calendar year 2023 show 102 prescription claims written by this provider, covering 19 Medicare beneficiaries and totaling roughly $3K in drug spend, split 31% brand-name and 44% generic by claim count.
Gerontology Nurse Practitioner is a mid-sized specialty nationwide, with 9,706 enrolled providers across 54 states and an average of 1,283 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 | 1457540171 |
|---|---|
| Specialty | Gerontology Nurse Practitioner |
| Credentials | GNP, APNP |
| Gender | Female |
| NPI Issued | 10/18/2007 |
Brand vs generic prescribing mix · Above average
Kelly Felmer, GNP, APNP - brand share 31.0%
Gerontology Nurse Practitioner average
31% brand-name claims vs 44% generic, on 102 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.
102
Total Claims
$3K
Total Drug Cost
19
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 164
- Total Day Supply
- 4,920
- Brand vs Generic
- 31% brand / 44% generic
- Brand Drug Cost
- $469
- Generic Drug Cost
- $1K
Patient Demographics
- Average Patient Age
- 70.5 years
- Avg HCC Risk Score
- 0.70
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 34 |
| Hydrocortisone | 20 |
| Np Thyroid "Thyroid | N/A |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gerontology Nurse Practitioner Overview
How Kelly Felmer, GNP, APNP fits within the Gerontology Nurse Practitioner landscape nationally.
9,706
Gerontology Nurse Practitioner Providers in US
54
States with Gerontology Nurse Practitioner
1,283
Avg Claims per Provider
Kelly Felmer, GNP, APNP's 102 claims are below the specialty average of 1,283.
Nearby Gerontology Nurse Practitioner Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Felmer.
Dr. Blaire Adkins
DNP
Madison, WI
Dr. Fatima Ali
NP
Mequon, WI
Dr. Nina Alioto
NP
Milwaukee, WI
Dr. Patricia Angelucci
NP
Appleton, WI
Dr. Jessica Angove
APNP
Waukesha, WI
Compare Gerontology 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 Wisconsin medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Gerontology 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.
Healthcare Guides
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Medical Specialties Explained
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Understanding Medicare Claims Data
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Frequently Asked Questions
What is Kelly Felmer, GNP, APNP's specialty? ▼
Kelly Felmer, GNP, APNP specializes in Gerontology Nurse Practitioner and practices in Green Bay, Wisconsin. Credentials: GNP, APNP.
How much does Kelly Felmer, GNP, APNP prescribe under Medicare Part D? ▼
In 2023, Kelly Felmer, GNP, APNP wrote 102 Medicare Part D claims totaling $3K in drug costs for 19 beneficiaries.
Where is Kelly Felmer, GNP, APNP located? ▼
Kelly Felmer, GNP, APNP is located at 1601 S. WEBSTER AVENUE, Green Bay, WI, 54301. Phone: (920) 343-6443.
What is Kelly Felmer, GNP, APNP's NPI number? ▼
Kelly Felmer, GNP, APNP's National Provider Identifier (NPI) is 1457540171, issued on 10/18/2007.
Does Kelly Felmer, GNP, APNP prescribe more brand-name or generic drugs? ▼
Kelly Felmer, GNP, APNP's prescribing is 31% brand-name and 44% generic drugs by claim count, with $469 in brand drug costs.
How many Gerontology Nurse Practitioner providers are there in the US? ▼
There are 9,706 Gerontology Nurse Practitioner providers across 54 states in the US. The average Gerontology Nurse Practitioner provider writes 1,283 Medicare Part D claims per year.
What drugs does Kelly Felmer, GNP, APNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Kelly Felmer, GNP, APNP's most frequently prescribed drugs include Levothyroxine Sodium, Hydrocortisone, Np Thyroid. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kelly Felmer, GNP, APNP accept Medicare? ▼
Kelly Felmer, GNP, APNP appears in CMS Medicare data with 102 Part D claims and 19 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kelly Felmer, GNP, APNP's credentials? ▼
Kelly Felmer, GNP, APNP's NPI is 1457540171 with credentials GNP, APNP. 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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.