IndividualActive
Mark Deleon Kellam
NPI 1659887735 · Counselor · Holbrook, MA
Mark Deleon Kellam is a Counselor provider in Holbrook, MA (NPI 1659887735).
Provider details
- NPI number
- 1659887735
- Entity type
- Individual
- Primary specialty
- CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(62/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 yrs in NPPES registry
- Profile completeness38% of score
83% 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
110 Longmeadow Dr
Holbrook, MA 02343-2246
Phone: (978) 578-6346
Street-level locationGet directions
Mailing address
110 Longmeadow Dr
Holbrook, MA 02343-2246
Registry dates
- Enumerated
- 2017-12-27
- Last updated
- 2017-12-27
Frequently asked questions
- What is Mark Deleon Kellam's NPI number?
- Mark Deleon Kellam's National Provider Identifier (NPI) is 1659887735, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Deleon Kellam's specialty?
- Mark Deleon Kellam is listed in the NPPES registry with a primary specialty of Counselor (Behavioral Health & Social Service Providers).
- Where is Mark Deleon Kellam located?
- Mark Deleon Kellam's practice location on file with NPPES is 110 Longmeadow Dr, Holbrook, MA 02343-2246.
- What is Mark Deleon Kellam's phone number?
- The practice phone number listed in the NPPES registry for Mark Deleon Kellam is (978) 578-6346.
- Is Mark Deleon Kellam's NPI active?
- Yes — Mark Deleon Kellam's NPI (1659887735) is active in the NPPES registry as of the last update on 2017-12-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.