Steven Mather, M.D.
NPI 1346236163 · Orthopaedic Surgery Physician · Downers Grove, IL
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Mather, M.D. is a Orthopaedic Surgery Physician provider in Downers Grove, IL (NPI 1346236163).
Provider details
- NPI number
- 1346236163
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036084422 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
467 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 204 | $92 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 55 | $115 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 50 | $132 |
| Insertion of Cage Or Mesh Device to Spine Bone and Disc Space During Spine Fusion22853 | 38 | $270 |
| Fusion of Additional Segment of Spine22614 | 20 | $426 |
| Placement of Stabilizing Device to Back, 3-6 Spine Bone Segments22842 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Diclofenac Sodium | 75 | 30 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 70 | 51 |
| Meloxicam | 54 | 21 |
| Tramadol Hcl | 46 | 21 |
| Calcitonin,salmon,syntheticbrand: Calcitonin-Salmon | 44 | 31 |
| Prednisone | 26 | 22 |
| Tizanidine Hcl | 25 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$330 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-27
- Last updated
- 2018-07-16
Frequently asked questions
- What is Steven Mather's NPI number?
- Steven Mather's National Provider Identifier (NPI) is 1346236163, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Mather's specialty?
- Steven Mather is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Mather located?
- Steven Mather's practice location on file with NPPES is 4115 Fairview Ave, Downers Grove, IL 60515.
- What is Steven Mather's phone number?
- The practice phone number listed in the NPPES registry for Steven Mather is (630) 968-1881.
- Does Steven Mather accept Medicare?
- Steven Mather is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Mather's NPI active?
- Yes — Steven Mather's NPI (1346236163) is active in the NPPES registry as of the last update on 2018-07-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.