John Simanonok, MD
NPI 1003870395 · Undersea and Hyperbaric Medicine (Preventive Medicine) Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Undersea and Hyperbaric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Simanonok, MD is a Undersea and Hyperbaric Medicine (Preventive Medicine) Physician provider in Milwaukee, WI (NPI 1003870395).
Provider details
- NPI number
- 1003870395
- Entity type
- Individual
- Primary specialty
- Undersea and Hyperbaric Medicine (Preventive Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 44402 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
424 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Management of Oxygen Chamber Therapy99183 | 153 | $95 |
| Removal of Tissue From Wound, 20.0 Sq Cm Or Less97597 | 130 | $33 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 89 | $60 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 31 | $87 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 21 | $33 |
Typical Medicare-allowed amounts for these services range $33–$95 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pentoxifylline | 44 | 15 |
| Gentamicin Sulfate | 34 | 11 |
| Mupirocin | 33 | 19 |
| Doxycycline Monohydrate | 25 | 21 |
| Oxycodone Hcl | 23 | — |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 17 | 13 |
| Levofloxacin | 13 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-13
- Last updated
- 2021-11-23
- Certified
- 2021-11-23
Frequently asked questions
- What is John Simanonok's NPI number?
- John Simanonok's National Provider Identifier (NPI) is 1003870395, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Simanonok's specialty?
- John Simanonok is listed in the NPPES registry with a primary specialty of Undersea and Hyperbaric Medicine (Preventive Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is John Simanonok located?
- John Simanonok's practice location on file with NPPES is 2901 W Kinnickinnic River Pkwy Ste 309, Milwaukee, WI 53215-3660.
- What is John Simanonok's phone number?
- The practice phone number listed in the NPPES registry for John Simanonok is (414) 649-1292.
- Does John Simanonok accept Medicare?
- John Simanonok is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Simanonok's NPI active?
- Yes — John Simanonok's NPI (1003870395) is active in the NPPES registry as of the last update on 2021-11-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.