Ronald Ziman, MD
NPI 1841213329 · Neurology Physician · Northridge, CA
Enrolled with Medicare as Order and Referring Only - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ronald Ziman, MD is a Neurology Physician provider in Northridge, CA (NPI 1841213329).
Provider details
- NPI number
- 1841213329
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G27874 (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
- 2006-07-25
- Last updated
- 2010-06-22
Frequently asked questions
- What is Ronald Ziman's NPI number?
- Ronald Ziman's National Provider Identifier (NPI) is 1841213329, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Ziman's specialty?
- Ronald Ziman is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Ziman located?
- Ronald Ziman's practice location on file with NPPES is 18433 Roscoe Blvd, Northridge, CA 91325-4108.
- What is Ronald Ziman's phone number?
- The practice phone number listed in the NPPES registry for Ronald Ziman is (818) 349-2503.
- Does Ronald Ziman accept Medicare?
- Ronald Ziman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ronald Ziman's NPI active?
- Yes — Ronald Ziman's NPI (1841213329) is active in the NPPES registry as of the last update on 2010-06-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.