NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1669437760 MD
Verify on CMS → John Rozanski, MD
Internal Medicine Physician in Fort Lauderdale, Florida.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,737 in Internal Medicine 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
4K
Medicare Part D claims · 505 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$686.45
7 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
John Rozanski, MD filed 3,945 Medicare Part D claims in 2023 as an Internal Medicine Physician in Fort Lauderdale, Florida, prescribing 87% generic.
- 4K
- Part D claims, 2023
- 87%
- generic prescribing
- $686.45
- industry payments (Sunshine Act)
- ≥91st
- pct by Part D claim volume (lower-bound band)
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.
CMS NPPES provider registry desk
NPI 1669437760 · Internal Medicine Physician
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-MID · BOOK-MID · PHOTO-ENUM
- NPI-10 1669437760
- ENUM-LEGACY 2006
- TAX-MEGA 173K Internal Medicine
- RX-MID 3,945
- BOOK-MID 11,125 in Florida
- PHOTO-ENUM Albert Snedden · 2006
John Rozanski, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,945 ≥ 91st percentile 91% of 1,370,886 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
John Rozanski, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about John Rozanski, MD?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
3,945 45% vs specialty avg
Specialty distribution in Florida
How Internal Medicine Physician compares to other specialties among Florida 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 Internal Medicine 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).
Practice Address
Provider Details
| NPI | 1669437760 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/20/2006 |
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 John Rozanski, MD. Source: openpaymentsdata.cms.gov.
Total received
$686
Largest payer
AstraZeneca Pharmaceuticals LP
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.
License & disciplinary context - Florida FLDOH 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~75K Florida medical licensees in 2023 - they are NOT specific to John Rozanski, MD. To verify John Rozanski, MD's current license status, search the FLDOH public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
480
Total board actions, Florida 2023
Across 467 cases
6.40
Actions per 1,000 licensees
Florida statewide rate
monetary fine
Most common action type
138 cases
FLDOH publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Florida disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
John Rozanski, MD - brand share 13.0%
Internal Medicine Physician average
13% brand-name claims vs 87% generic, on 3,945 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.
3,945
Total Claims
$716K
Total Drug Cost
505
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 10,663
- Total Day Supply
- 318,890
- Brand vs Generic
- 13% brand / 87% generic
- Brand Drug Cost
- $637K
- Generic Drug Cost
- $79K
Patient Demographics
- Average Patient Age
- 71.5 years
- Avg HCC Risk Score
- 1.80
- Gender Split
- 45% female / 55% male
- Age Distribution
- <65: 59, 65-74: 271, 75-84: 138, 85+: 37
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What John Rozanski, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Metoprolol Succinate
Metoprolol Succinate
398 claims
- Atorvastatin Calcium
Atorvastatin Calcium
366 claims
- Amlodipine Besylate
Amlodipine Besylate
355 claims
- Losartan Potassium
Losartan Potassium
237 claims
- Lisinopril
Lisinopril
202 claims
- Carvedilol
Carvedilol
174 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
170 claims
- Eliquis 157
Eliquis
157 claims
| Drug | Claims |
|---|---|
| Metoprolol Succinate | 398 |
| Atorvastatin Calcium | 366 |
| Amlodipine Besylate | 355 |
| Losartan Potassium | 237 |
| Lisinopril | 202 |
| Carvedilol | 174 |
| Rosuvastatin Calcium | 170 |
| Eliquis Apixaban | 157 |
| Furosemide | 132 |
| Spironolactone | 124 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How John Rozanski, MD fits within the Internal Medicine Physician landscape nationally.
172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
John Rozanski, MD's 3,945 claims are above the specialty average of 2,716.
Nationwide Internal Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Rozanski, both outside Florida so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Internal Medicine Physician Providers in Florida
Other clinicians with the same primary specialty enrolled in Florida, drawn from the same CMS NPPES roster as Rozanski.
One of 11,125 Internal Medicine Physician providers enrolled in Florida, 5 are shown here.
Dr. Hayden Aaron
M.D.
West Palm Beach, FL
Dr. Abiedu Abaaba
M.D.
Jacksonville, FL
Dr. Kashif Abad
M.D.
West Palm Beach, FL
Dr. Jose Abando
MD
Daytona Beach, FL
Dr. Ismeth Abbas
M.D.
Jacksonville, FL
Compare Internal Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is John Rozanski, MD's specialty? ▼
John Rozanski, MD specializes in Internal Medicine Physician and practices in Fort Lauderdale, Florida. Credentials: MD.
How much does John Rozanski, MD prescribe under Medicare Part D? ▼
In 2023, John Rozanski, MD wrote 3,945 Medicare Part D claims totaling $716K in drug costs for 505 beneficiaries.
Where is John Rozanski, MD located? ▼
John Rozanski, MD is located at 1625 SE 3RD AVE STE 300, Fort Lauderdale, FL, 33316. Phone: (954) 355-4665.
What is John Rozanski, MD's NPI number? ▼
John Rozanski, MD's National Provider Identifier (NPI) is 1669437760, issued on 04/20/2006.
Does John Rozanski, MD prescribe more brand-name or generic drugs? ▼
John Rozanski, MD's prescribing is 13% brand-name and 87% generic drugs by claim count, with $637K in brand drug costs.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,737 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does John Rozanski, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, John Rozanski, MD's most frequently prescribed drugs include Metoprolol Succinate, Atorvastatin Calcium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Rozanski, MD accept Medicare? ▼
John Rozanski, MD appears in CMS Medicare data with 3,945 Part D claims and 505 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Rozanski, MD's credentials? ▼
John Rozanski, MD's NPI is 1669437760 with credentials MD. 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.