Maclean Sellars, MD, PHD
NPI 1326402272 · Internal Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maclean Sellars, MD, PHD is a Internal Medicine Physician provider in Boston, MA (NPI 1326402272).
Provider details
- NPI number
- 1326402272
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 271109 (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
10 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-04-07
- Last updated
- 2022-07-21
Frequently asked questions
- What is Maclean Sellars's NPI number?
- Maclean Sellars's National Provider Identifier (NPI) is 1326402272, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maclean Sellars's specialty?
- Maclean Sellars is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Maclean Sellars located?
- Maclean Sellars's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2621.
- What is Maclean Sellars's phone number?
- The practice phone number listed in the NPPES registry for Maclean Sellars is (617) 724-9557.
- Does Maclean Sellars accept Medicare?
- Maclean Sellars is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maclean Sellars's NPI active?
- Yes — Maclean Sellars's NPI (1326402272) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.