2026 NPPES data Nurse Practitioner NPI 1407961584 APNP
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HERBERT FELLERER, APNP

Nurse Practitioner in SHEBOYGAN, Wisconsin. 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
6K
Medicare Part D claims · 279 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
97%
generic claims · 3% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

HERBERT FELLERER, APNP filed 5,537 Medicare Part D claims in 2023 as a Nurse Practitioner in SHEBOYGAN, Wisconsin, prescribing 97% generic.

6K
Part D claims, 2023
97%
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.

HERBERT FELLERER, APNP's Medicare Part D volume vs every U.S. prescriber

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

5,537 Top 5% higher than 95% 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 HERBERT FELLERER, APNP?

Quality data not reported

NPI registry status

Active

Issued 08/20/2006

NPI 1407961584

Primary specialty

Nurse Practitioner

High-volume

87,227 US NPIs in this specialty

Medicare Part D claims

5,537 411% vs specialty avg

2023 prescription claims

Specialty avg: 1,084

Specialty distribution in Wisconsin

How Nurse Practitioner compares to other specialties among Wisconsin providers

Wisconsin providers

Nurse Practitioner share within Wisconsin

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

Specialty board-certification context

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

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

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

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

HERBERT FELLERER, APNP appears in the CMS NPPES registry as a Nurse Practitioner provider holding APNP credentials at 2414 KOHLER MEMORIAL DR, SHEBOYGAN, WI, 53081, with a listed phone of (920) 457-4461. NPI 1407961584 was issued on 08/20/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FELLERER 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 5,537 prescription claims written by this provider, covering 279 Medicare beneficiaries and totaling roughly $310K in drug spend, split 3% brand-name and 97% 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.

Nurse Practitioner is a high-volume specialty nationwide, with 87,227 enrolled providers across 56 states and an average of 1,084 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

2414 KOHLER MEMORIAL DR
SHEBOYGAN, WI 53081

Provider Details

NPI 1407961584
Specialty Nurse Practitioner
Credentials APNP
Gender Male
NPI Issued 08/20/2006

Brand vs generic prescribing mix · Generic-heavy

HERBERT FELLERER, APNP — brand share 3.0%
Specialty average (est.)

3% brand-name claims vs 97% generic, on 5,537 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.

5,537
Total Claims
$310K
Total Drug Cost
279
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
7,040
Total Day Supply
205,758
Brand vs Generic
3% brand / 97% generic
Brand Drug Cost
$116K
Generic Drug Cost
$194K

Patient Demographics

Average Patient Age
59.8 years
Avg HCC Risk Score
1.40
Gender Split
55% female / 45% male
Age Distribution
<65: 145, 65-74: 104, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What HERBERT FELLERER, APNP 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
Alprazolam
357
Trazodone Hcl
337
Sertraline Hcl
259
Quetiapine Fumarate
227
Zolpidem Tartrate
215
Bupropion Xl
Bupropion Hcl
204
Clonazepam
198
Olanzapine
194
Hydroxyzine Hcl
191
Venlafaxine Hcl Er
Venlafaxine Hcl
188

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

Nurse Practitioner Overview

How HERBERT FELLERER, APNP fits within the Nurse Practitioner landscape nationally.

87,227
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider

HERBERT FELLERER, APNP's 5,537 claims are above the specialty average of 1,084.

Nearby Nurse Practitioner Providers in Wisconsin

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

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

Frequently Asked Questions

What is HERBERT FELLERER, APNP's specialty?
HERBERT FELLERER, APNP specializes in Nurse Practitioner and practices in SHEBOYGAN, Wisconsin. Credentials: APNP.
How much does HERBERT FELLERER, APNP prescribe under Medicare Part D?
In 2023, HERBERT FELLERER, APNP wrote 5,537 Medicare Part D claims totaling $310K in drug costs for 279 beneficiaries.
Where is HERBERT FELLERER, APNP located?
HERBERT FELLERER, APNP is located at 2414 KOHLER MEMORIAL DR, SHEBOYGAN, WI, 53081. Phone: (920) 457-4461.
What is HERBERT FELLERER, APNP's NPI number?
HERBERT FELLERER, APNP's National Provider Identifier (NPI) is 1407961584, issued on 08/20/2006.
Does HERBERT FELLERER, APNP prescribe more brand-name or generic drugs?
HERBERT FELLERER, APNP's prescribing is 3% brand-name and 97% generic drugs by claim count, with $116K in brand drug costs.
How many Nurse Practitioner providers are there in the US?
There are 87,227 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,084 Medicare Part D claims per year.
What drugs does HERBERT FELLERER, APNP prescribe most often?
Based on 2023 Medicare Part D data, HERBERT FELLERER, APNP's most frequently prescribed drugs include Alprazolam, Trazodone Hcl, Sertraline Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does HERBERT FELLERER, APNP accept Medicare?
HERBERT FELLERER, APNP appears in CMS Medicare data with 5,537 Part D claims and 279 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify HERBERT FELLERER, APNP's credentials?
HERBERT FELLERER, APNP's NPI is 1407961584 with credentials 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

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