Dean Sienko, MD
NPI 1831288398 · Public Health & General Preventive Medicine Physician · Lansing, MI
Dean Sienko, MD is a Public Health & General Preventive Medicine Physician provider in Lansing, MI (NPI 1831288398).
Provider details
- NPI number
- 1831288398
- Entity type
- Individual
- Primary specialty
- Public Health & General Preventive Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301048740 (MI)
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
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
- 2006-10-12
- Last updated
- 2011-07-27
Frequently asked questions
- What is Dean Sienko's NPI number?
- Dean Sienko's National Provider Identifier (NPI) is 1831288398, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dean Sienko's specialty?
- Dean Sienko is listed in the NPPES registry with a primary specialty of Public Health & General Preventive Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Dean Sienko located?
- Dean Sienko's practice location on file with NPPES is 5303 S Cedar St, Lansing, MI 48911-3800.
- What is Dean Sienko's phone number?
- The practice phone number listed in the NPPES registry for Dean Sienko is (517) 887-4428.
- Is Dean Sienko's NPI active?
- Yes — Dean Sienko's NPI (1831288398) is active in the NPPES registry as of the last update on 2011-07-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.