Steven Matthiesen
NPI 1841629441 · Certified Registered Nurse Anesthetist · Granger, IN
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Matthiesen is a Certified Registered Nurse Anesthetist provider in Granger, IN (NPI 1841629441).
Provider details
- NPI number
- 1841629441
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 28212067A (IN)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 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
245 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) |
|---|---|---|
| Anesthesia for Procedure for Total Knee Joint Replacement01402 | 77 | $274 |
| Ultrasonic Guidance for Needle Placement76942 | 48 | $28 |
| Anesthesia for Total Hip Replacement01214 | 41 | $282 |
| Injection of Anesthetic Agent And/Or Steroid Into Thigh Nerve (femoral Nerve)64447 | 36 | $32 |
| Injection of Anesthetic Agent And/Or Steroid Into Knee Nerve Branch Using Imaging Guidance64454 | 32 | $73 |
| Anesthesia for Open Or Endoscopic Total Shoulder Joint Replacement01638 | 11 | $357 |
Typical Medicare-allowed amounts for these services range $28–$357 (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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$14 across 1 record (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
- 2013-11-04
- Last updated
- 2015-11-28
Frequently asked questions
- What is Steven Matthiesen's NPI number?
- Steven Matthiesen's National Provider Identifier (NPI) is 1841629441, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Matthiesen's specialty?
- Steven Matthiesen is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Steven Matthiesen located?
- Steven Matthiesen's practice location on file with NPPES is 50820 Summit Hill Ct, Granger, IN 46530-9720.
- What is Steven Matthiesen's phone number?
- The practice phone number listed in the NPPES registry for Steven Matthiesen is (312) 415-1137.
- Does Steven Matthiesen accept Medicare?
- Steven Matthiesen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Matthiesen's NPI active?
- Yes — Steven Matthiesen's NPI (1841629441) is active in the NPPES registry as of the last update on 2015-11-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.