Marc Kostrubiak
NPI 1649852401 · Student in an Organized Health Care Education/Training Program · Boston, MA
Enrolled with Medicare as Order and Referring Only - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marc Kostrubiak is a Student in an Organized Health Care Education/Training Program provider in Boston, MA (NPI 1649852401).
Provider details
- NPI number
- 1649852401
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- 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
5 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- Uvm Medical Center111 Colchester AvenueBurlington, VT 05401Phone: (802) 847-2345
Registry dates
- Enumerated
- 2021-04-22
- Last updated
- 2025-06-19
- Certified
- 2025-06-19
Frequently asked questions
- What is Marc Kostrubiak's NPI number?
- Marc Kostrubiak's National Provider Identifier (NPI) is 1649852401, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc Kostrubiak's specialty?
- Marc Kostrubiak 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 Marc Kostrubiak located?
- Marc Kostrubiak's practice location on file with NPPES is 800 Washington St, Boston, MA 02111-1552.
- What is Marc Kostrubiak's phone number?
- The practice phone number listed in the NPPES registry for Marc Kostrubiak is (617) 636-5000.
- Does Marc Kostrubiak accept Medicare?
- Marc Kostrubiak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marc Kostrubiak's NPI active?
- Yes — Marc Kostrubiak's NPI (1649852401) is active in the NPPES registry as of the last update on 2025-06-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.