Mark Denning
NPI 1023569571 · Mental Health Counselor · Lansing, MI
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Denning is a Mental Health Counselor provider in Lansing, MI (NPI 1023569571).
Provider details
- NPI number
- 1023569571
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 6401015605 (MI)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
- 2016-10-19
- Last updated
- 2016-10-19
Frequently asked questions
- What is Mark Denning's NPI number?
- Mark Denning's National Provider Identifier (NPI) is 1023569571, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Denning's specialty?
- Mark Denning is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Mark Denning located?
- Mark Denning's practice location on file with NPPES is 4814 Tressa Dr, Lansing, MI 48910-5106.
- What is Mark Denning's phone number?
- The practice phone number listed in the NPPES registry for Mark Denning is (517) 862-4693.
- Does Mark Denning accept Medicare?
- Mark Denning is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Denning's NPI active?
- Yes — Mark Denning's NPI (1023569571) is active in the NPPES registry as of the last update on 2016-10-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.