Marc Michaelson, MD PHD
NPI 1275523490 · Medical Oncology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marc Michaelson, MD PHD is a Medical Oncology Physician provider in Boston, MA (NPI 1275523490).
Provider details
- NPI number
- 1275523490
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 159790 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,220 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 397 | $102 |
| 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 | 269 | $17 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 132 | $152 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 85 | $69 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 78 | $138 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Abiraterone Acetate | 167 | 34 |
| Prednisone | 147 | 43 |
| Enzalutamidebrand: Xtandi | 97 | 15 |
| Darolutamidebrand: Nubeqa | 90 | 19 |
| Axitinibbrand: Inlyta | 39 | — |
| Apalutamidebrand: Erleada | 19 | — |
| Cabozantinib S-Malatebrand: Cabometyx | 16 | — |
Practice location
Mailing address
Additional practice locations (1)
- 75 Francis StBoston, MA 02115-6110Phone: (617) 732-5500
Registry dates
- Enumerated
- 2005-10-27
- Last updated
- 2026-01-28
- Certified
- 2026-01-28
Frequently asked questions
- What is Marc Michaelson's NPI number?
- Marc Michaelson's National Provider Identifier (NPI) is 1275523490, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc Michaelson's specialty?
- Marc Michaelson is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Marc Michaelson located?
- Marc Michaelson's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2621.
- What is Marc Michaelson's phone number?
- The practice phone number listed in the NPPES registry for Marc Michaelson is (617) 726-5187.
- Does Marc Michaelson accept Medicare?
- Marc Michaelson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marc Michaelson's NPI active?
- Yes — Marc Michaelson's NPI (1275523490) is active in the NPPES registry as of the last update on 2026-01-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.