2026 NPPES data Nurse Practitioner NPI 1376026492
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REBECCA KOSLOV

Nurse Practitioner in MADISON, 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
4K
Medicare Part D claims · 618 beneficiaries · Nurse Practitioner avg: 1K

What the federal data shows

REBECCA KOSLOV filed 4,374 Medicare Part D claims in 2023 as a Nurse Practitioner in MADISON, Wisconsin.

4K
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.

REBECCA KOSLOV's Medicare Part D volume vs every U.S. prescriber

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

4,374 Top 8% higher than 92% 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 REBECCA KOSLOV?

Quality data not reported

NPI registry status

Active

Issued 09/14/2018

NPI 1376026492

Primary specialty

Nurse Practitioner

High-volume

87,227 US NPIs in this specialty

Medicare Part D claims

4,374 304% 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).

REBECCA KOSLOV appears in the CMS NPPES registry as a Nurse Practitioner provider at 2880 UNIVERSITY AVE, MADISON, WI, 53705, with a listed phone of (608) 698-6171. NPI 1376026492 was issued on 09/14/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KOSLOV 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 4,374 prescription claims written by this provider, covering 618 Medicare beneficiaries and totaling roughly $280K in drug spend, with an opioid prescribing rate of 1.8%. 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

2880 UNIVERSITY AVE
MADISON, WI 53705

Provider Details

NPI 1376026492
Specialty Nurse Practitioner
Gender Female
NPI Issued 09/14/2018

Hospital and facility affiliations

Facilities where REBECCA KOSLOV 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.

UNIVERSITY OF WISCONSIN MEDICAL FOUNDATION INC
MADISON, WI

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.

4,374
Total Claims
$280K
Total Drug Cost
618
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
8,245
Total Day Supply
236,201
Generic Drug Cost
$87K
Opioid Claims
77 (1.8% rate)
Antibiotic Claims
87

Patient Demographics

Average Patient Age
81.4 years
Avg HCC Risk Score
1.42
Gender Split
70% female / 30% male

Top Prescribed Drugs (Medicare Part D)

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

What REBECCA KOSLOV 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
Memantine Hcl
337
Donepezil Hcl
301
Sertraline Hcl
280
Amlodipine Besylate
155
Trazodone Hcl
152
Atorvastatin Calcium
148
Lisinopril
143
Levothyroxine Sodium
131
Escitalopram Oxalate
122
Omeprazole
113

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

Nurse Practitioner Overview

How REBECCA KOSLOV 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

REBECCA KOSLOV's 4,374 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 KOSLOV.

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

Frequently Asked Questions

What is REBECCA KOSLOV's specialty?
REBECCA KOSLOV specializes in Nurse Practitioner and practices in MADISON, Wisconsin.
How much does REBECCA KOSLOV prescribe under Medicare Part D?
In 2023, REBECCA KOSLOV wrote 4,374 Medicare Part D claims totaling $280K in drug costs for 618 beneficiaries.
Where is REBECCA KOSLOV located?
REBECCA KOSLOV is located at 2880 UNIVERSITY AVE, MADISON, WI, 53705. Phone: (608) 698-6171.
What is REBECCA KOSLOV's NPI number?
REBECCA KOSLOV's National Provider Identifier (NPI) is 1376026492, issued on 09/14/2018.
Does REBECCA KOSLOV prescribe opioids?
Yes, REBECCA KOSLOV had 77 opioid claims in 2023 with an opioid prescribing rate of 1.8%.
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 REBECCA KOSLOV prescribe most often?
Based on 2023 Medicare Part D data, REBECCA KOSLOV's most frequently prescribed drugs include Memantine Hcl, Donepezil Hcl, Sertraline Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does REBECCA KOSLOV accept Medicare?
REBECCA KOSLOV appears in CMS Medicare data with 4,374 Part D claims and 618 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify REBECCA KOSLOV's credentials?
REBECCA KOSLOV's NPI is 1376026492. 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