Stephen Ronson, M.D.
NPI 1861604589 · Specialist · Baltimore, MD
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Ronson, M.D. is a Specialist provider in Baltimore, MD (NPI 1861604589).
Provider details
- NPI number
- 1861604589
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D0067791 (MD)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
4,930 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) |
|---|---|---|
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 914 | $133 |
| Intensity Modulated Treatment Delivery, Single Or Multiple Fields/Arcs,via Narrow Spatially and Temporally Modulated Beams, Binary, Dynamic Mlc, Per Treatment SessionG6015 | 893 | $401 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 308 | $209 |
| Calculation of Radiation Therapy Dose77300 | 268 | $73 |
| Continuing Radiation Therapy Consultation Per Week77336 | 261 | $101 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 259 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 39 | 15 |
| Dexamethasone | 22 | 16 |
| Oxycodone Hcl | 19 | 15 |
| Memantine Hcl | 17 | — |
| Ondansetron Hcl | 15 | — |
| Lidocaine Hclbrand: Lidocaine Hcl Viscous | 13 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-04
- Last updated
- 2010-05-03
Frequently asked questions
- What is Stephen Ronson's NPI number?
- Stephen Ronson's National Provider Identifier (NPI) is 1861604589, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Ronson's specialty?
- Stephen Ronson is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Stephen Ronson located?
- Stephen Ronson's practice location on file with NPPES is 9105 Franklin Square Dr, Baltimore, MD 21237-3930.
- What is Stephen Ronson's phone number?
- The practice phone number listed in the NPPES registry for Stephen Ronson is (410) 682-6800.
- Does Stephen Ronson accept Medicare?
- Stephen Ronson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Ronson's NPI active?
- Yes — Stephen Ronson's NPI (1861604589) is active in the NPPES registry as of the last update on 2010-05-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.