Mack Lee Sullivan MD Functional Medicine PC
NPI 1962333633 · Primary Care Clinic/Center · Eastchester, NY
Mack Lee Sullivan MD Functional Medicine PC is a Primary Care Clinic/Center organization in Eastchester, NY (NPI 1962333633).
Provider details
- NPI number
- 1962333633
- Entity type
- Organization
- Primary specialty
- Primary Care Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Mack Sullivan, Medical Director(914) 395-3691
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
- 2026-05-28
- Last updated
- 2026-05-28
- Certified
- 2026-05-28
Frequently asked questions
- What is Mack Lee Sullivan MD Functional Medicine PC's NPI number?
- Mack Lee Sullivan MD Functional Medicine PC's National Provider Identifier (NPI) is 1962333633, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mack Lee Sullivan MD Functional Medicine PC?
- Mack Lee Sullivan MD Functional Medicine PC is classified in the NPPES registry as Primary Care Clinic/Center (Ambulatory Health Care Facilities).
- Where is Mack Lee Sullivan MD Functional Medicine PC located?
- Mack Lee Sullivan MD Functional Medicine PC's practice location on file with NPPES is 369 White Plains Rd, Eastchester, NY 10709-2805.
- What is Mack Lee Sullivan MD Functional Medicine PC's phone number?
- The practice phone number listed in the NPPES registry for Mack Lee Sullivan MD Functional Medicine PC is (914) 395-3691.
- Who is the authorized official for Mack Lee Sullivan MD Functional Medicine PC?
- The authorized official listed on Mack Lee Sullivan MD Functional Medicine PC's NPPES record is Mack Sullivan, Medical Director. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mack Lee Sullivan MD Functional Medicine PC's NPI active?
- Yes — Mack Lee Sullivan MD Functional Medicine PC's NPI (1962333633) is active in the NPPES registry as of the last update on 2026-05-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.