Matthew Johnson, M.D.
NPI 1952612020 · Radiation Oncology Physician · Saint Charles, MO
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Johnson, M.D. is a Radiation Oncology Physician provider in Saint Charles, MO (NPI 1952612020).
Provider details
- NPI number
- 1952612020
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036140409 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
16 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
1,090 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) |
|---|---|---|
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 330 | $43 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 116 | $184 |
| Stereoscopic X-Ray Guidance for Localization of Target Volume for the Delivery of Radiation TherapyG6002 | 109 | $20 |
| Design and Construction of Complex Radiation Treatment Device77334 | 107 | $58 |
| Calculation of Radiation Therapy Dose77300 | 103 | $31 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 84 | $94 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 56 | 25 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 18 | — |
| Fluoride (sodium)brand: Sodium Fluoride 5000 Plus | 18 | — |
| Sucralfate | 15 | 11 |
| Tramadol Hcl | 13 | — |
| Dexamethasone | 13 | 11 |
| Lidocaine Hclbrand: Lidocaine Hcl Viscous |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$645 across 6 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
- 2010-06-23
- Last updated
- 2024-06-26
- Certified
- 2024-06-26
Frequently asked questions
- What is Matthew Johnson's NPI number?
- Matthew Johnson's National Provider Identifier (NPI) is 1952612020, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Johnson's specialty?
- Matthew Johnson is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Johnson located?
- Matthew Johnson's practice location on file with NPPES is 1475 Kisker Rd Ste 180, Saint Charles, MO 63304-8786.
- What is Matthew Johnson's phone number?
- The practice phone number listed in the NPPES registry for Matthew Johnson is (636) 442-7300.
- Does Matthew Johnson accept Medicare?
- Matthew Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Johnson's NPI active?
- Yes — Matthew Johnson's NPI (1952612020) is active in the NPPES registry as of the last update on 2024-06-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.