Matthew Meizlish, MD, PHD
NPI 1952988263 · Medical Oncology Physician · Boston, MA
Matthew Meizlish, MD, PHD is a Medical Oncology Physician provider in Boston, MA (NPI 1952988263).
Provider details
- NPI number
- 1952988263
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 1952988263 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Albuterol Sulfatebrand: Ventolin Hfa | 19 |
| Amlodipine Besylate | 12 |
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 no Part D record, 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
- 2021-03-24
- Last updated
- 2026-05-14
- Certified
- 2026-05-14
Frequently asked questions
- What is Matthew Meizlish's NPI number?
- Matthew Meizlish's National Provider Identifier (NPI) is 1952988263, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Meizlish's specialty?
- Matthew Meizlish is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Meizlish located?
- Matthew Meizlish's practice location on file with NPPES is 450 Brookline Ave, Boston, MA 02215-5450.
- What is Matthew Meizlish's phone number?
- The practice phone number listed in the NPPES registry for Matthew Meizlish is (617) 632-3000.
- Is Matthew Meizlish's NPI active?
- Yes — Matthew Meizlish's NPI (1952988263) is active in the NPPES registry as of the last update on 2026-05-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.