Mark Castera, MD
NPI 1649775396 · Neonatal-Perinatal Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Castera, MD is a Neonatal-Perinatal Medicine Physician provider in Boston, MA (NPI 1649775396).
Provider details
- NPI number
- 1649775396
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 1019331 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 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
- 2018-03-26
- Last updated
- 2024-05-01
- Certified
- 2024-05-01
Frequently asked questions
- What is Mark Castera's NPI number?
- Mark Castera's National Provider Identifier (NPI) is 1649775396, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Castera's specialty?
- Mark Castera is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Castera located?
- Mark Castera's practice location on file with NPPES is 840 Harrison Ave Fl 4, Boston, MA 02118-2905.
- What is Mark Castera's phone number?
- The practice phone number listed in the NPPES registry for Mark Castera is (617) 414-4511.
- Does Mark Castera accept Medicare?
- Mark Castera is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Castera's NPI active?
- Yes — Mark Castera's NPI (1649775396) is active in the NPPES registry as of the last update on 2024-05-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.