NPI registry status
Active
2026 NPPES data Otolaryngology Physician NPI 1518939966 M.D.
Verify on CMS → John Bizal, M.D.
Otolaryngology Physician in Evansville, Indiana.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 10,893 in Otolaryngology 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
175
Medicare Part D claims · 79 beneficiaries · Otolaryngology Physician avg: 509
Generic prescribing
91%
generic claims · 9% 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
John Bizal, M.D. filed 175 Medicare Part D claims in 2023 as a Otolaryngology Physician in Evansville, Indiana, prescribing 91% generic.
- 175
- Part D claims, 2023
- 91%
- 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.
John Bizal, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
175 35th percentile higher than 35% 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-eligible specialty (heuristic, not verified)
John Bizal, M.D. 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 Bizal, M.D.?
Quality data not reportedPrimary specialty
Otolaryngology Physician
Medicare Part D claims
175 66% vs specialty avg
Specialty distribution in Indiana
How Otolaryngology Physician compares to other specialties among Indiana 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 Otolaryngology 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).
John Bizal, M.D. appears in the CMS NPPES registry as an Otolaryngology Physician provider holding M.D. credentials at 350 W COLUMBIA ST, Evansville, IN, 47710, with a listed phone of (812) 425-2646. NPI 1518939966 was issued on 02/01/2006.
Medicare Part D records for calendar year 2023 show 175 prescription claims written by this provider, covering 79 Medicare beneficiaries and totaling roughly $5K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 9.1%.
Otolaryngology Physician is a mid-sized specialty nationwide, with 10,893 enrolled providers across 54 states and an average of 509 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 | 1518939966 |
|---|---|
| Specialty | Otolaryngology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 02/01/2006 |
Brand vs generic prescribing mix · Generic-heavy
John Bizal, M.D. - brand share 9.0%
Otolaryngology Physician average
9% brand-name claims vs 91% generic, on 175 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.
175
Total Claims
$5K
Total Drug Cost
79
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 220
- Total Day Supply
- 3,859
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $1K
- Generic Drug Cost
- $3K
- Opioid Claims
- 16 (9.1% rate)
- Antibiotic Claims
- 39
Patient Demographics
- Average Patient Age
- 68.1 years
- Avg HCC Risk Score
- 1.05
- Gender Split
- 63% female / 37% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What John Bizal, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ofloxacin
Ofloxacin
41 claims
- Fluticasone Propio… 16
Fluticasone Propionate
16 claims
- Amoxicillin 14
Amoxicillin
14 claims
- Ciprofloxacin Hcl 14
Ciprofloxacin Hcl
14 claims
- Oxycodone-Acetamin… 14
Oxycodone-Acetaminophen
14 claims
- Dexamethasone Sodi… 11
Dexamethasone Sodium Phosphate
11 claims
| Drug | Claims |
|---|---|
| Ofloxacin | 41 |
| Fluticasone Propionate | 16 |
| Amoxicillin | 14 |
| Ciprofloxacin Hcl | 14 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 14 |
| Dexamethasone Sodium Phosphate | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Otolaryngology Physician Overview
How John Bizal, M.D. fits within the Otolaryngology Physician landscape nationally.
10,893
Otolaryngology Physician Providers in US
54
States with Otolaryngology Physician
509
Avg Claims per Provider
John Bizal, M.D.'s 175 claims are below the specialty average of 509.
Nearby Otolaryngology Physician Providers in Indiana
Other clinicians with the same primary specialty enrolled in Indiana, drawn from the same CMS NPPES roster as Bizal.
Dr. Maher Abu-Hamdan
M.D.
South Bend, IN
Dr. Michael Agostino
MD
Noblesville, IN
Dr. Benjamin Anthony
M.D.
Indianapolis, IN
Dr. Steven Ashton
D.O.
Warsaw, IN
Dr. Warren Balazs
DO
North Vernon, IN
Compare Otolaryngology 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 Indiana medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Otolaryngology 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 John Bizal, M.D.'s specialty? ▼
John Bizal, M.D. specializes in Otolaryngology Physician and practices in Evansville, Indiana. Credentials: M.D..
How much does John Bizal, M.D. prescribe under Medicare Part D? ▼
In 2023, John Bizal, M.D. wrote 175 Medicare Part D claims totaling $5K in drug costs for 79 beneficiaries.
Where is John Bizal, M.D. located? ▼
John Bizal, M.D. is located at 350 W COLUMBIA ST, Evansville, IN, 47710. Phone: (812) 425-2646.
What is John Bizal, M.D.'s NPI number? ▼
John Bizal, M.D.'s National Provider Identifier (NPI) is 1518939966, issued on 02/01/2006.
Does John Bizal, M.D. prescribe more brand-name or generic drugs? ▼
John Bizal, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $1K in brand drug costs.
Does John Bizal, M.D. prescribe opioids? ▼
Yes, John Bizal, M.D. had 16 opioid claims in 2023 with an opioid prescribing rate of 9.1%.
How many Otolaryngology Physician providers are there in the US? ▼
There are 10,893 Otolaryngology Physician providers across 54 states in the US. The average Otolaryngology Physician provider writes 509 Medicare Part D claims per year.
What drugs does John Bizal, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, John Bizal, M.D.'s most frequently prescribed drugs include Ofloxacin, Fluticasone Propionate, Amoxicillin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Bizal, M.D. accept Medicare? ▼
John Bizal, M.D. appears in CMS Medicare data with 175 Part D claims and 79 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Bizal, M.D.'s credentials? ▼
John Bizal, M.D.'s NPI is 1518939966 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.