NPI registry status
Active
2026 NPPES data Primary Care Nurse Practitioner NPI 1821519836 APRN
Verify on CMS → Nicholas Kershbaumer, APRN
Primary Care Nurse Practitioner in Amherst, New Hampshire.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 10,179 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.
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
590
Medicare Part D claims · 263 beneficiaries · Primary Care Nurse Practitioner avg: 1K
Generic prescribing
93%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$81.76
2 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Nicholas Kershbaumer, APRN filed 590 Medicare Part D claims in 2023 as a Primary Care Nurse Practitioner in Amherst, New Hampshire, prescribing 93% generic.
- 590
- Part D claims, 2023
- 93%
- generic prescribing
- $81.76
- 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.
Nicholas Kershbaumer, APRN's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
590 Top 34% higher than 66% 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 Nicholas Kershbaumer, APRN?
Quality data not reportedPrimary specialty
Primary Care Nurse Practitioner
Medicare Part D claims
590 57% vs specialty avg
Specialty distribution in New Hampshire
How Primary Care Nurse Practitioner compares to other specialties among New Hampshire 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 Primary Care 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).
Nicholas Kershbaumer, APRN appears in the CMS NPPES registry as a Primary Care Nurse Practitioner provider holding APRN credentials at 199 ROUTE 101, Amherst, NH, 03031, with a listed phone of (603) 249-3000. NPI 1821519836 was issued on 06/29/2017.
Medicare Part D records for calendar year 2023 show 590 prescription claims written by this provider, covering 263 Medicare beneficiaries and totaling roughly $27K in drug spend, split 5% brand-name and 93% generic by claim count, with an opioid prescribing rate of 4.4%.
Primary Care Nurse Practitioner is a mid-sized specialty nationwide, with 10,179 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 | 1821519836 |
|---|---|
| Specialty | Primary Care Nurse Practitioner |
| Credentials | APRN |
| Gender | Male |
| NPI Issued | 06/29/2017 |
Hospital and facility affiliations
Facilities where Nicholas Kershbaumer, APRN 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.
Elliot Physicians Network
Hooksett, NH
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Nicholas Kershbaumer, APRN. Source: openpaymentsdata.cms.gov.
Total received
$82
Largest payer
Janssen Pharmaceuticals, 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 · Generic-heavy
Nicholas Kershbaumer, APRN - brand share 5.0%
Primary Care Nurse Practitioner average
5% brand-name claims vs 93% generic, on 590 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.
590
Total Claims
$27K
Total Drug Cost
263
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,091
- Total Day Supply
- 28,147
- Brand vs Generic
- 5% brand / 93% generic
- Brand Drug Cost
- $12K
- Generic Drug Cost
- $15K
- Opioid Claims
- 26 (4.4% rate)
- Antibiotic Claims
- 85
Patient Demographics
- Average Patient Age
- 70.1 years
- Avg HCC Risk Score
- 1.09
- Gender Split
- 55% female / 45% male
- Age Distribution
- <65: 46, 65-74: 136, 75-84: 60, 85+: 21
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Nicholas Kershbaumer, APRN prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
40 claims
- Prednisone
Prednisone
36 claims
- Doxycycline Hyclate
Doxycycline Hyclate
20 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
18 claims
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
18 claims
- Levothyroxine Sodium
Levothyroxine Sodium
17 claims
- Omeprazole 15
Omeprazole
15 claims
- Duloxetine Hcl 14
Duloxetine Hcl
14 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 40 |
| Prednisone | 36 |
| Doxycycline Hyclate | 20 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 18 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 18 |
| Levothyroxine Sodium | 17 |
| Omeprazole | 15 |
| Duloxetine Hcl | 14 |
| Pantoprazole Sodium | 14 |
| Amlodipine Besylate | 13 |
* 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 Nicholas Kershbaumer, APRN fits within the Primary Care Nurse Practitioner landscape nationally.
10,179
Primary Care Nurse Practitioner Providers in US
54
States with Primary Care Nurse Practitioner
1,363
Avg Claims per Provider
Nicholas Kershbaumer, APRN's 590 claims are below the specialty average of 1,363.
Nearby Primary Care Nurse Practitioner Providers in New Hampshire
Other clinicians with the same primary specialty enrolled in New Hampshire, drawn from the same CMS NPPES roster as Kershbaumer.
Dr. Mary Aboozia
NP
Manchester, NH
Dr. Casey Brighton
APRN
Newmarket, NH
Dr. Carly Burke
APRN
Franklin, NH
Stephane Campagna
Littleton, NH
Dr. Jennifer Chrisemer
APRN, FNP- BC
Amherst, NH
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 New Hampshire 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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Frequently Asked Questions
What is Nicholas Kershbaumer, APRN's specialty? ▼
Nicholas Kershbaumer, APRN specializes in Primary Care Nurse Practitioner and practices in Amherst, New Hampshire. Credentials: APRN.
How much does Nicholas Kershbaumer, APRN prescribe under Medicare Part D? ▼
In 2023, Nicholas Kershbaumer, APRN wrote 590 Medicare Part D claims totaling $27K in drug costs for 263 beneficiaries.
Where is Nicholas Kershbaumer, APRN located? ▼
Nicholas Kershbaumer, APRN is located at 199 ROUTE 101, Amherst, NH, 03031. Phone: (603) 249-3000.
What is Nicholas Kershbaumer, APRN's NPI number? ▼
Nicholas Kershbaumer, APRN's National Provider Identifier (NPI) is 1821519836, issued on 06/29/2017.
Does Nicholas Kershbaumer, APRN prescribe more brand-name or generic drugs? ▼
Nicholas Kershbaumer, APRN's prescribing is 5% brand-name and 93% generic drugs by claim count, with $12K in brand drug costs.
Does Nicholas Kershbaumer, APRN prescribe opioids? ▼
Yes, Nicholas Kershbaumer, APRN had 26 opioid claims in 2023 with an opioid prescribing rate of 4.4%.
How many Primary Care Nurse Practitioner providers are there in the US? ▼
There are 10,179 Primary Care Nurse Practitioner providers across 54 states in the US. The average Primary Care Nurse Practitioner provider writes 1,363 Medicare Part D claims per year.
What drugs does Nicholas Kershbaumer, APRN prescribe most often? ▼
Based on 2023 Medicare Part D data, Nicholas Kershbaumer, APRN's most frequently prescribed drugs include Atorvastatin Calcium, Prednisone, Doxycycline Hyclate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Nicholas Kershbaumer, APRN accept Medicare? ▼
Nicholas Kershbaumer, APRN appears in CMS Medicare data with 590 Part D claims and 263 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Nicholas Kershbaumer, APRN's credentials? ▼
Nicholas Kershbaumer, APRN's NPI is 1821519836 with credentials APRN. 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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.