Ronald Zielinsky, M.D.
NPI 1871603928 · Obstetrics & Gynecology Physician · Carmichael, CA
Ronald Zielinsky, M.D. is a Obstetrics & Gynecology Physician provider in Carmichael, CA (NPI 1871603928).
Provider details
- NPI number
- 1871603928
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G87001 (CA)
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
- 2006-08-30
- Last updated
- 2012-02-13
Frequently asked questions
- What is Ronald Zielinsky's NPI number?
- Ronald Zielinsky's National Provider Identifier (NPI) is 1871603928, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Zielinsky's specialty?
- Ronald Zielinsky is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Zielinsky located?
- Ronald Zielinsky's practice location on file with NPPES is 6555 Coyle Ave, Carmichael, CA 95608-0302.
- What is Ronald Zielinsky's phone number?
- The practice phone number listed in the NPPES registry for Ronald Zielinsky is (916) 536-3500.
- Is Ronald Zielinsky's NPI active?
- Yes — Ronald Zielinsky's NPI (1871603928) is active in the NPPES registry as of the last update on 2012-02-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.