Jason Kerstein
NPI 1265963102 · Pediatric Critical Care Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Critical Care (intensivists) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jason Kerstein is a Pediatric Critical Care Medicine Physician provider in Boston, MA (NPI 1265963102).
Provider details
- NPI number
- 1265963102
- Entity type
- Individual
- Primary specialty
- Pediatric Critical Care Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 282755 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
- 2017-03-22
- Last updated
- 2025-05-11
- Certified
- 2025-05-11
Frequently asked questions
- What is Jason Kerstein's NPI number?
- Jason Kerstein's National Provider Identifier (NPI) is 1265963102, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jason Kerstein's specialty?
- Jason Kerstein is listed in the NPPES registry with a primary specialty of Pediatric Critical Care Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jason Kerstein located?
- Jason Kerstein's practice location on file with NPPES is 300 Longwood Ave, Boston, MA 02115-5724.
- What is Jason Kerstein's phone number?
- The practice phone number listed in the NPPES registry for Jason Kerstein is (617) 355-6000.
- Does Jason Kerstein accept Medicare?
- Jason Kerstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jason Kerstein's NPI active?
- Yes — Jason Kerstein's NPI (1265963102) is active in the NPPES registry as of the last update on 2025-05-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.