Natalie Marshall, M.D.
NPI 1366445470 · Medical Oncology Physician · Berkeley, CA
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1366445470
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 93-322 (NM)
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
21 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
2,455 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) |
|---|---|---|
| Injection of Additional New Drug Or Substance Into Vein96375 | 499 | $20 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 344 | $154 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 209 | $175 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 208 | $9 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 189 | $18 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 165 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Letrozole | 237 | 66 |
| Tamoxifen Citrate | 183 | 67 |
| Anastrozole | 170 | 63 |
| Ondansetron Hcl | 61 | 26 |
| Alendronate Sodium | 35 | 13 |
| Gabapentin | 27 | 11 |
| Ribociclib Succinatebrand: Kisqali | 26 | — |
| Olanzapine | 25 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-05-23
- Last updated
- 2020-10-12
- Certified
- 2020-10-12
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.