Joelle Mast, PHD, MD
NPI 1285856054 · Neurology with Special Qualifications in Child Neurology Physician · Sleepy Hollow, NY
Joelle Mast, PHD, MD is a Neurology with Special Qualifications in Child Neurology Physician provider in Sleepy Hollow, NY (NPI 1285856054).
Provider details
- NPI number
- 1285856054
- Entity type
- Individual
- Primary specialty
- Neurology with Special Qualifications in Child Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- PHD, MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 157890 (NY)
Specialties & taxonomies
- Neurology with Special Qualifications in Child Neurology PhysicianPrimary2084N0402XLicense 157890 (NY)
Allopathic & Osteopathic Physicians
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
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
- 2007-05-02
- Last updated
- 2015-09-01
Frequently asked questions
- What is Joelle Mast's NPI number?
- Joelle Mast's National Provider Identifier (NPI) is 1285856054, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joelle Mast's specialty?
- Joelle Mast is listed in the NPPES registry with a primary specialty of Neurology with Special Qualifications in Child Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Joelle Mast located?
- Joelle Mast's practice location on file with NPPES is 755 N Broadway, Sleepy Hollow, NY 10591-1075.
- What is Joelle Mast's phone number?
- The practice phone number listed in the NPPES registry for Joelle Mast is (914) 358-0188.
- Is Joelle Mast's NPI active?
- Yes — Joelle Mast's NPI (1285856054) is active in the NPPES registry as of the last update on 2015-09-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.