Marsha Alexander, D.O
NPI 1508059056 · Child & Adolescent Psychiatry Physician · Commack, NY
Enrolled with Medicare as Order and Referring Only - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marsha Alexander, D.O is a Child & Adolescent Psychiatry Physician provider in Commack, NY (NPI 1508059056).
Provider details
- NPI number
- 1508059056
- Entity type
- Individual
- Primary specialty
- Child & Adolescent Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O
- Sex
- Female
- Sole proprietor
- Yes
- License
- 237852 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
- 2007-08-18
- Last updated
- 2007-08-18
Frequently asked questions
- What is Marsha Alexander's NPI number?
- Marsha Alexander's National Provider Identifier (NPI) is 1508059056, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marsha Alexander's specialty?
- Marsha Alexander is listed in the NPPES registry with a primary specialty of Child & Adolescent Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Marsha Alexander located?
- Marsha Alexander's practice location on file with NPPES is 356 Veterans Memorial Hwy, Commack, NY 11725-4343.
- What is Marsha Alexander's phone number?
- The practice phone number listed in the NPPES registry for Marsha Alexander is (516) 779-3300.
- Does Marsha Alexander accept Medicare?
- Marsha Alexander is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marsha Alexander's NPI active?
- Yes — Marsha Alexander's NPI (1508059056) is active in the NPPES registry as of the last update on 2007-08-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.