Provider Profile
Steven M. Twidwell, PA
Unclaimed ProfileAbout Steven Twidwell
Listed in the NPI registry as a physician assistant, Steven M. Twidwell, PA practices in Saint Louis, MO. Medicare claims data shows Steven provided 488 services to 446 patients. The services billed most often include ultrasonic guidance for blood vessel access, fluoroscopic guidance for insertion or removal of central vein access device, and insertion of central venous tube with port (5 years or older).
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (314) 362-7200
- Email not available
Practice Locations
510 S KINGSHIGHWAY BLVD DEPT RADIOLOGY
Saint Louis, MO 63110
Procedures Most Often Billed to Medicare
488 services · 446 patients · 16 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of central venous tube with port (5 years or older) | Procedure | 36561 |
48 | More often than most peers in Physician Assistant |
| Insertion of non-tunneled central venous tube for infusion (5 years or older) | Procedure | 36556 |
30 | More often than most peers in Physician Assistant |
| Replacement of kidney drainage tube using imaging guidance with review by radiologist | Procedure | 50435 |
26 | More often than most peers in Physician Assistant |
| Removal of tunneled central venous tube | Procedure | 36589 |
25 | More often than most peers in Physician Assistant |
| Insertion of tube for infusion with imaging guidance and review by radiologist, patient 5 years or older | Procedure | 36573 |
24 | More often than most peers in Physician Assistant |
| Removal of central venous tube with port or pump | Procedure | 36590 |
17 | More often than most peers in Physician Assistant |
| Insertion of tunneled central venous tube for infusion (5 years or older) | Procedure | 36558 |
15 | Less often than most peers in Physician Assistant |
| Injection of contrast through abdominal cavity tube for x-ray study | Procedure | 49424 |
14 | Too few peers to compare |
| Drainage of fluid from abdominal cavity using imaging guidance | Procedure | 49083 |
14 | Less often than most peers in Physician Assistant |
| Ultrasonic guidance for blood vessel access | Imaging | 76937 |
94 | More than most peers in Physician Assistant |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other physician assistants at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 32 related providers in 4 groups
Other physician assistants in Saint Louis 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2021 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of central venous tube with port (5 years or older) 8
Providers in MO who bill this service to Medicare most often.
Common questions
What is Steven M. Twidwell's specialty?
Steven M. Twidwell is a physician assistant in Saint Louis, MO. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Steven M. Twidwell?
Steven M. Twidwell is listed at 510 S Kingshighway Blvd Dept Radiology, Saint Louis, MO 63110. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Steven M. Twidwell?
The number on file is (314) 362-7200. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Steven M. Twidwell?
Steven M. Twidwell's National Provider Identifier is 1215526785. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Steven M. Twidwell's education?
Steven M. Twidwell attended Other, graduating in 2021. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Steven M. Twidwell have?
Steven M. Twidwell has 5 years experience. Calculated from a graduation year of 2021, reported in the CMS National Downloadable File.
CMS public data
What is Steven M. Twidwell known for?
According to Medicare billing data, Steven M. Twidwell performs procedures including insertion of central venous tube with port, insertion of non-tunneled central venous tube for infusion and replacement of kidney drainage tube using imaging guidance with review by radiologist; reads or performs imaging such as ultrasonic guidance for blood vessel access and fluoroscopic guidance for insertion or removal of central vein access device, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Steven M. Twidwell's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Steven M. Twidwell. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.