Julia Derenzi, PA
NPI 1932369469 · Medical Physician Assistant · San Ramon, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Julia Derenzi, PA is a Medical Physician Assistant provider in San Ramon, CA (NPI 1932369469).
Provider details
- NPI number
- 1932369469
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- PA19746 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
11 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 11 | $98 |
Typical Medicare-allowed amounts for these services range $98–$98 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 232 | 99 |
| Famotidine | 197 | 83 |
| Omeprazole | 127 | 65 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 53 | 51 |
| Sucralfate | 39 | 19 |
| Ondansetronbrand: Ondansetron Odt | 32 | 18 |
| Linaclotidebrand: Linzess | 31 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,818 across 83 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-06-09
- Last updated
- 2025-01-03
- Certified
- 2025-01-03
Frequently asked questions
- What is Julia Derenzi's NPI number?
- Julia Derenzi's National Provider Identifier (NPI) is 1932369469, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Julia Derenzi's specialty?
- Julia Derenzi is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Julia Derenzi located?
- Julia Derenzi's practice location on file with NPPES is 5601 Norris Canyon Rd Ste 240, San Ramon, CA 94583-5407.
- What is Julia Derenzi's phone number?
- The practice phone number listed in the NPPES registry for Julia Derenzi is (925) 901-1303.
- Does Julia Derenzi accept Medicare?
- Julia Derenzi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Julia Derenzi's NPI active?
- Yes — Julia Derenzi's NPI (1932369469) is active in the NPPES registry as of the last update on 2025-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.