NPI registry status
Active
2026 NPPES data Undersea and Hyperbaric Medicine (Preventive Medicine) Physician NPI 1003870395 MD
Verify on CMS → John Simanonok, MD
Undersea and Hyperbaric Medicine (Preventive Medicine) 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 243 in Undersea and Hyperbaric Medicine (Preventive 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
262
Medicare Part D claims · 89 beneficiaries · Undersea and Hyperbaric Medicine (Preventive Medicine) Physician avg: 522
What the federal data shows
John Simanonok, MD filed 262 Medicare Part D claims in 2023 as an Undersea and Hyperbaric Medicine (Preventive Medicine) Physician in Milwaukee, Wisconsin.
- 262
- Part D claims, 2023
- Likely
- board-certified (heuristic)
- ≥49th
- 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.
John Simanonok, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
262 ≥ 49th percentile 49% 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 certification likely (heuristic, not verified)
John Simanonok, MD 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 John Simanonok, MD?
Quality data not reportedPrimary specialty
Undersea and Hyperbaric Medicine (Preventive Medicine) Physician
Medicare Part D claims
262 50% vs specialty avg
Specialty distribution in Wisconsin
How Undersea and Hyperbaric Medicine (Preventive Medicine) 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 Undersea and Hyperbaric Medicine (Preventive 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).
John Simanonok, MD appears in the CMS NPPES registry as an Undersea and Hyperbaric Medicine (Preventive Medicine) Physician provider holding MD credentials at 2901 W KINNICKINNIC RIVER PKWY STE 309, Milwaukee, WI, 53215, with a listed phone of (414) 649-1292. NPI 1003870395 was issued on 04/13/2006.
Medicare Part D records for calendar year 2023 show 262 prescription claims written by this provider, covering 89 Medicare beneficiaries and totaling roughly $9K in drug spend, with an opioid prescribing rate of 10.3%.
Undersea and Hyperbaric Medicine (Preventive Medicine) Physician is a narrow specialty nationwide, with 243 enrolled providers across 42 states and an average of 522 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 | 1003870395 |
|---|---|
| Specialty | Undersea and Hyperbaric Medicine (Preventive Medicine) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/13/2006 |
Hospital and facility affiliations
Facilities where John Simanonok, MD 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.
Aurora Medical Group, 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).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
262
Total Claims
$9K
Total Drug Cost
89
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 288
- Total Day Supply
- 5,958
- Generic Drug Cost
- $8K
- Opioid Claims
- 27 (10.3% rate)
- Antibiotic Claims
- 55
Patient Demographics
- Average Patient Age
- 69.7 years
- Avg HCC Risk Score
- 4.43
- Gender Split
- 48% female / 52% male
- Age Distribution
- <65: 26, 65-74: 29, 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 John Simanonok, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Pentoxifylline
Pentoxifylline
66 claims
- Mupirocin
Mupirocin
41 claims
- Lidocaine Hcl 17
Lidocaine Hcl
17 claims
- Gentamicin Sulfate 14
Gentamicin Sulfate
14 claims
- Doxycycline Monohy… 13
Doxycycline Monohydrate
13 claims
- Hydrocodone-Acetam… 12
Hydrocodone-Acetaminophen
12 claims
- Oxycodone Hcl 12
Oxycodone Hcl
12 claims
- Triamcinolone Acet… 12
Triamcinolone Acetonide
12 claims
| Drug | Claims |
|---|---|
| Pentoxifylline | 66 |
| Mupirocin | 41 |
| Lidocaine Hcl | 17 |
| Gentamicin Sulfate | 14 |
| Doxycycline Monohydrate | 13 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 12 |
| Oxycodone Hcl | 12 |
| Triamcinolone Acetonide | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Undersea and Hyperbaric Medicine (Preventive Medicine) Physician in WI →
All providers in Wisconsin →
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Undersea and Hyperbaric Medicine (Preventive Medicine) Physician Overview
How John Simanonok, MD fits within the Undersea and Hyperbaric Medicine (Preventive Medicine) Physician landscape nationally.
243
Undersea and Hyperbaric Medicine (Preventive Medicine) Physician Providers in US
42
States with Undersea and Hyperbaric Medicine (Preventive Medicine) Physician
522
Avg Claims per Provider
John Simanonok, MD's 262 claims are below the specialty average of 522.
Nationwide Undersea and Hyperbaric Medicine (Preventive Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Simanonok, both outside Wisconsin 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 Undersea and Hyperbaric Medicine (Preventive Medicine) Physician Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Simanonok.
One of 12 Undersea and Hyperbaric Medicine (Preventive Medicine) Physician providers enrolled in Wisconsin, 5 are shown here.
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 Undersea and Hyperbaric Medicine (Preventive Medicine) 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.
Healthcare Guides
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Frequently Asked Questions
What is John Simanonok, MD's specialty? ▼
John Simanonok, MD specializes in Undersea and Hyperbaric Medicine (Preventive Medicine) Physician and practices in Milwaukee, Wisconsin. Credentials: MD.
How much does John Simanonok, MD prescribe under Medicare Part D? ▼
In 2023, John Simanonok, MD wrote 262 Medicare Part D claims totaling $9K in drug costs for 89 beneficiaries.
Where is John Simanonok, MD located? ▼
John Simanonok, MD is located at 2901 W KINNICKINNIC RIVER PKWY STE 309, Milwaukee, WI, 53215. Phone: (414) 649-1292.
What is John Simanonok, MD's NPI number? ▼
John Simanonok, MD's National Provider Identifier (NPI) is 1003870395, issued on 04/13/2006.
Does John Simanonok, MD prescribe opioids? ▼
Yes, John Simanonok, MD had 27 opioid claims in 2023 with an opioid prescribing rate of 10.3%.
How many Undersea and Hyperbaric Medicine (Preventive Medicine) Physician providers are there in the US? ▼
There are 243 Undersea and Hyperbaric Medicine (Preventive Medicine) Physician providers across 42 states in the US. The average Undersea and Hyperbaric Medicine (Preventive Medicine) Physician provider writes 522 Medicare Part D claims per year.
What drugs does John Simanonok, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, John Simanonok, MD's most frequently prescribed drugs include Pentoxifylline, Mupirocin, Lidocaine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Simanonok, MD accept Medicare? ▼
John Simanonok, MD appears in CMS Medicare data with 262 Part D claims and 89 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Simanonok, MD's credentials? ▼
John Simanonok, MD's NPI is 1003870395 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.