NPI registry status
Active
2026 NPPES data Neurology Physician NPI 1942213996 M.D.
Verify on CMS → Jonathan Florczak, M.D.
Neurology Physician in Milwaukee, 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 19,885 in Neurology Physician, 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
1K
Medicare Part D claims · 158 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
64%
generic claims · 36% 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
Jonathan Florczak, M.D. filed 1,333 Medicare Part D claims in 2023 as a Neurology Physician in Milwaukee, Wisconsin, prescribing 64% generic.
- 1K
- Part D claims, 2023
- 64%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Jonathan Florczak, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,333 Top 21% higher than 79% 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
✓
Board certification likely (heuristic, not verified)
Jonathan Florczak, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Jonathan Florczak, M.D.?
Quality data not reportedPrimary specialty
Neurology Physician
Medicare Part D claims
1,333 2% vs specialty avg
Specialty distribution in Wisconsin
How Neurology Physician 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 Neurology Physician. 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).
Jonathan Florczak, M.D. appears in the CMS NPPES registry as a Neurology Physician provider holding M.D. credentials at 9200 W WISCONSIN AVE, Milwaukee, WI, 53226, with a listed phone of (414) 805-9719. NPI 1942213996 was issued on 08/14/2006.
Medicare Part D records for calendar year 2023 show 1,333 prescription claims written by this provider, covering 158 Medicare beneficiaries and totaling roughly $947K in drug spend, split 36% brand-name and 64% generic by claim count.
Neurology Physician is a mid-sized specialty nationwide, with 19,885 enrolled providers across 54 states and an average of 1,309 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 | 1942213996 |
|---|---|
| Specialty | Neurology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 08/14/2006 |
Hospital and facility affiliations
Facilities where Jonathan Florczak, M.D. 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.
The Medical College OF Wisconsin Inc
Milwaukee, 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).
Brand vs generic prescribing mix · Above average
Jonathan Florczak, M.D. - brand share 36.0%
Neurology Physician average
36% brand-name claims vs 64% generic, on 1,333 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.
1,333
Total Claims
$947K
Total Drug Cost
158
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,066
- Total Day Supply
- 57,510
- Brand vs Generic
- 36% brand / 64% generic
- Brand Drug Cost
- $877K
- Generic Drug Cost
- $70K
Patient Demographics
- Average Patient Age
- 59.2 years
- Avg HCC Risk Score
- 1.48
- Gender Split
- 80% female / 20% male
- Age Distribution
- <65: 79, 65-74: 64, 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 Jonathan Florczak, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Nurtec Odt
Nurtec Odt
132 claims
- Emgality Pen
Emgality Pen
120 claims
- Gabapentin
Gabapentin
97 claims
- Sumatriptan Succin…
Sumatriptan Succinate
85 claims
- Tizanidine Hcl
Tizanidine Hcl
75 claims
- Aimovig Autoinjector
Aimovig Autoinjector
68 claims
- Ubrelvy
Ubrelvy
60 claims
- Rizatriptan
Rizatriptan
57 claims
| Drug | Claims |
|---|---|
| Nurtec Odt Rimegepant Sulfate | 132 |
| Emgality Pen Galcanezumab-Gnlm | 120 |
| Gabapentin | 97 |
| Sumatriptan Succinate | 85 |
| Tizanidine Hcl | 75 |
| Aimovig Autoinjector Erenumab-Aooe | 68 |
| Ubrelvy Ubrogepant | 60 |
| Rizatriptan Rizatriptan Benzoate | 57 |
| Topiramate | 50 |
| Dexamethasone | 31 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Neurology Physician Overview
How Jonathan Florczak, M.D. fits within the Neurology Physician landscape nationally.
19,885
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider
Jonathan Florczak, M.D.'s 1,333 claims are above the specialty average of 1,309.
Nearby Neurology Physician Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Florczak.
Dr. Amir Abdelli
MD
Milwaukee, WI
Mohammad Abdul Azeem
Milwaukee, WI
Dr. Christopher Adams
PSY.D
Milwaukee, WI
Dr. Sherika Adams
MD
Madison, WI
Dr. Naveen Addagatla
M.D
Milwaukee, WI
Compare Neurology Physician 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 Neurology Physician 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 Jonathan Florczak, M.D.'s specialty? ▼
Jonathan Florczak, M.D. specializes in Neurology Physician and practices in Milwaukee, Wisconsin. Credentials: M.D..
How much does Jonathan Florczak, M.D. prescribe under Medicare Part D? ▼
In 2023, Jonathan Florczak, M.D. wrote 1,333 Medicare Part D claims totaling $947K in drug costs for 158 beneficiaries.
Where is Jonathan Florczak, M.D. located? ▼
Jonathan Florczak, M.D. is located at 9200 W WISCONSIN AVE, Milwaukee, WI, 53226. Phone: (414) 805-9719.
What is Jonathan Florczak, M.D.'s NPI number? ▼
Jonathan Florczak, M.D.'s National Provider Identifier (NPI) is 1942213996, issued on 08/14/2006.
Does Jonathan Florczak, M.D. prescribe more brand-name or generic drugs? ▼
Jonathan Florczak, M.D.'s prescribing is 36% brand-name and 64% generic drugs by claim count, with $877K in brand drug costs.
How many Neurology Physician providers are there in the US? ▼
There are 19,885 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does Jonathan Florczak, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Jonathan Florczak, M.D.'s most frequently prescribed drugs include Nurtec Odt, Emgality Pen, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Jonathan Florczak, M.D. accept Medicare? ▼
Jonathan Florczak, M.D. appears in CMS Medicare data with 1,333 Part D claims and 158 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Jonathan Florczak, M.D.'s credentials? ▼
Jonathan Florczak, M.D.'s NPI is 1942213996 with credentials M.D.. 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.
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.