Mark Czeisler, MD, PHD
NPI 1154117513 · Student in an Organized Health Care Education/Training Program · Boston, MA
Mark Czeisler, MD, PHD is a Student in an Organized Health Care Education/Training Program provider in Boston, MA (NPI 1154117513).
Provider details
- NPI number
- 1154117513
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
83% 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
- 2025-04-15
- Last updated
- 2025-04-15
- Certified
- 2025-04-15
Frequently asked questions
- What is Mark Czeisler's NPI number?
- Mark Czeisler's National Provider Identifier (NPI) is 1154117513, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Czeisler's specialty?
- Mark Czeisler is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Mark Czeisler located?
- Mark Czeisler's practice location on file with NPPES is 75 Francis St, Boston, MA 02115-6110.
- What is Mark Czeisler's phone number?
- The practice phone number listed in the NPPES registry for Mark Czeisler is (617) 732-5775.
- Is Mark Czeisler's NPI active?
- Yes — Mark Czeisler's NPI (1154117513) is active in the NPPES registry as of the last update on 2025-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.