Maria Leona Sayson, CRNA
NPI 1558724807 · Certified Registered Nurse Anesthetist · Boston, MA
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Leona Sayson, CRNA is a Certified Registered Nurse Anesthetist provider in Boston, MA (NPI 1558724807).
Provider details
- NPI number
- 1558724807
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNA
- Sex
- Female
- Sole proprietor
- No
- License
- RN2274760 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
- 2016-04-04
- Last updated
- 2016-08-04
Frequently asked questions
- What is Maria Leona Sayson's NPI number?
- Maria Leona Sayson's National Provider Identifier (NPI) is 1558724807, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Leona Sayson's specialty?
- Maria Leona Sayson is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Maria Leona Sayson located?
- Maria Leona Sayson's practice location on file with NPPES is 300 Longwood Ave, Boston, MA 02115-5724.
- What is Maria Leona Sayson's phone number?
- The practice phone number listed in the NPPES registry for Maria Leona Sayson is (617) 355-6000.
- Does Maria Leona Sayson accept Medicare?
- Maria Leona Sayson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Leona Sayson's NPI active?
- Yes — Maria Leona Sayson's NPI (1558724807) is active in the NPPES registry as of the last update on 2016-08-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.