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John Zmiejko, M.D.
NPI 1689640831 · Pediatrics Physician · East China, MI
John Zmiejko, M.D. is a Pediatrics Physician provider in East China, MI (NPI 1689640831).
Provider details
- NPI number
- 1689640831
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 4301042415 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
4154 River Rd
Suite 1
East China, MI 48054-2925
Phone: (810) 329-6710
Fax: (810) 329-8790
Street-level locationGet directions
Mailing address
3050 Commerce Dr
Fort Gratiot, MI 48059-3819
Registry dates
- Enumerated
- 2006-02-27
- Last updated
- 2011-04-08
Frequently asked questions
- What is John Zmiejko's NPI number?
- John Zmiejko's National Provider Identifier (NPI) is 1689640831, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Zmiejko's specialty?
- John Zmiejko is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is John Zmiejko located?
- John Zmiejko's practice location on file with NPPES is 4154 River Rd, East China, MI 48054-2925.
- What is John Zmiejko's phone number?
- The practice phone number listed in the NPPES registry for John Zmiejko is (810) 329-6710.
- Is John Zmiejko's NPI active?
- Yes — John Zmiejko's NPI (1689640831) is active in the NPPES registry as of the last update on 2011-04-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.