Southside Medical Center Inc
NPI 1245636885 · Internal Medicine Physician · Lansing, MI
Southside Medical Center Inc is a Internal Medicine Physician organization in Lansing, MI (NPI 1245636885).
Provider details
- NPI number
- 1245636885
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Douglas Vanderjact, Owner(517) 913-3888
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
11 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
- 2014-11-10
- Last updated
- 2014-11-10
Frequently asked questions
- What is Southside Medical Center Inc's NPI number?
- Southside Medical Center Inc's National Provider Identifier (NPI) is 1245636885, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Southside Medical Center Inc?
- Southside Medical Center Inc is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Southside Medical Center Inc located?
- Southside Medical Center Inc's practice location on file with NPPES is 5525 S Martin Luther King Jr Blvd, Lansing, MI 48911-3546.
- What is Southside Medical Center Inc's phone number?
- The practice phone number listed in the NPPES registry for Southside Medical Center Inc is (517) 913-3888.
- Who is the authorized official for Southside Medical Center Inc?
- The authorized official listed on Southside Medical Center Inc's NPPES record is Douglas Vanderjact, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Southside Medical Center Inc's NPI active?
- Yes — Southside Medical Center Inc's NPI (1245636885) is active in the NPPES registry as of the last update on 2014-11-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.