Mary Margaret Gleason, MD
NPI 1023136389 · Child & Adolescent Psychiatry Physician · Boston, MA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Margaret Gleason, MD is a Child & Adolescent Psychiatry Physician provider in Boston, MA (NPI 1023136389).
Provider details
- NPI number
- 1023136389
- Entity type
- Individual
- Primary specialty
- Child & Adolescent Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 0101268163 (VA)
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
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 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 (2)
- 333 Longwood AveBoston, MA 02115-5711Phone: (617) 355-7476
- 2 Brookline PlBrookline, MA 02445-7230Phone: (617) 355-6000
Registry dates
- Enumerated
- 2007-03-26
- Last updated
- 2024-10-21
- Certified
- 2024-10-21
Frequently asked questions
- What is Mary Margaret Gleason's NPI number?
- Mary Margaret Gleason's National Provider Identifier (NPI) is 1023136389, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Margaret Gleason's specialty?
- Mary Margaret Gleason is listed in the NPPES registry with a primary specialty of Child & Adolescent Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Margaret Gleason located?
- Mary Margaret Gleason's practice location on file with NPPES is 300 Longwood Ave, Boston, MA 02115-5737.
- What is Mary Margaret Gleason's phone number?
- The practice phone number listed in the NPPES registry for Mary Margaret Gleason is (617) 355-6000.
- Does Mary Margaret Gleason accept Medicare?
- Mary Margaret Gleason is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Margaret Gleason's NPI active?
- Yes — Mary Margaret Gleason's NPI (1023136389) is active in the NPPES registry as of the last update on 2024-10-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.