Mark Steinhauser, PA-C
NPI 1750948436 · Physician Assistant · Chicago, IL
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Steinhauser, PA-C is a Physician Assistant provider in Chicago, IL (NPI 1750948436).
Provider details
- NPI number
- 1750948436
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- Yes
- License
- 1163429
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
277 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 145 | $136 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 132 | $94 |
Typical Medicare-allowed amounts for these services range $94–$136 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 51 | 51 |
| Prednisone | 47 | 45 |
| Celecoxib | 35 | 30 |
| Ondansetronbrand: Ondansetron Odt | 35 | 35 |
| Tizanidine Hcl | 32 | 32 |
| Cephalexin | 31 | 31 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 25 |
Practice location
Mailing address
Additional practice locations (2)
- 350 N Grandview AveDubuque, IA 52001-6388Phone: (563) 582-1881
- 259 E Erie StChicago, IL 60611Phone: (312) 695-6868
Registry dates
- Enumerated
- 2019-05-28
- Last updated
- 2021-07-30
- Certified
- 2021-07-30
Frequently asked questions
- What is Mark Steinhauser's NPI number?
- Mark Steinhauser's National Provider Identifier (NPI) is 1750948436, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Steinhauser's specialty?
- Mark Steinhauser is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mark Steinhauser located?
- Mark Steinhauser's practice location on file with NPPES is 259 E Erie St, Chicago, IL 60611.
- What is Mark Steinhauser's phone number?
- The practice phone number listed in the NPPES registry for Mark Steinhauser is (312) 695-6868.
- Does Mark Steinhauser accept Medicare?
- Mark Steinhauser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Steinhauser's NPI active?
- Yes — Mark Steinhauser's NPI (1750948436) is active in the NPPES registry as of the last update on 2021-07-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.