Irene Ventura Zadran, RDN
NPI 1316598477 · Registered Dietitian · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Registered Dietitian Or Nutrition Professional · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Irene Ventura Zadran, RDN is a Registered Dietitian provider in Walnut Creek, CA (NPI 1316598477).
Provider details
- NPI number
- 1316598477
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RDN
- Sex
- Female
- Sole proprietor
- No
- License
- 86147551
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
6 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
325 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Diabetes Outpatient Self-Management Training Services, Individual, Per 30 MinutesG0108 | 173 | $58 |
| Therapy Procedure Reassessment for Nutrition Management, Each 15 Minutes97803 | 82 | $30 |
| Therapy Procedure for Nutrition Management, Each 15 Minutes97802 | 70 | $34 |
Typical Medicare-allowed amounts for these services range $30–$58 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-09-20
- Last updated
- 2024-09-26
- Certified
- 2024-09-26
Frequently asked questions
- What is Irene Ventura Zadran's NPI number?
- Irene Ventura Zadran's National Provider Identifier (NPI) is 1316598477, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Irene Ventura Zadran's specialty?
- Irene Ventura Zadran is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Irene Ventura Zadran located?
- Irene Ventura Zadran's practice location on file with NPPES is 1450 Treat Blvd Ste 130, Walnut Creek, CA 94597-2168.
- What is Irene Ventura Zadran's phone number?
- The practice phone number listed in the NPPES registry for Irene Ventura Zadran is (925) 941-5076.
- Does Irene Ventura Zadran accept Medicare?
- Irene Ventura Zadran is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Irene Ventura Zadran's NPI active?
- Yes — Irene Ventura Zadran's NPI (1316598477) is active in the NPPES registry as of the last update on 2024-09-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.