Catherine Marshall, MD
NPI 1134443948 · Medical Oncology Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Marshall, MD is a Medical Oncology Physician provider in Baltimore, MD (NPI 1134443948).
Provider details
- NPI number
- 1134443948
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- D0080261 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 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
1,067 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) |
|---|---|---|
| Administration of Hormonal Anti-Neoplastic Chemotherapy Under Skin Or Into Muscle96402 | 210 | $37 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 133 | $146 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 132 | $131 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 124 | $121 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 122 | $17 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Abiraterone Acetate | 109 | 22 |
| Prednisone | 92 | 23 |
| Dexamethasone | 51 | 13 |
| Enzalutamidebrand: Xtandi | 33 | — |
| Darolutamidebrand: Nubeqa | 22 | — |
| Prochlorperazine Maleate | 20 | — |
| Relugolixbrand: Orgovyx | 18 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-03-23
- Last updated
- 2021-04-20
- Certified
- 2021-04-20
Frequently asked questions
- What is Catherine Marshall's NPI number?
- Catherine Marshall's National Provider Identifier (NPI) is 1134443948, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Marshall's specialty?
- Catherine Marshall is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Catherine Marshall located?
- Catherine Marshall's practice location on file with NPPES is 201 N Broadway St, Baltimore, MD 21287-0031.
- What is Catherine Marshall's phone number?
- The practice phone number listed in the NPPES registry for Catherine Marshall is (410) 955-0239.
- Does Catherine Marshall accept Medicare?
- Catherine Marshall is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Marshall's NPI active?
- Yes — Catherine Marshall's NPI (1134443948) is active in the NPPES registry as of the last update on 2021-04-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.