Silvia Diego, MD
NPI 1922080506 · Family Medicine Physician · Modesto, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Silvia Diego, MD is a Family Medicine Physician provider in Modesto, CA (NPI 1922080506).
Provider details
- NPI number
- 1922080506
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A54944 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
2,515 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 647 | $119 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 356 | $15 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 231 | $83 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 230 | $63 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 180 | $132 |
| Advance Care Planning, First 30 Minutes99497 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 163 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 747 | 245 |
| Levothyroxine Sodium | 584 | 151 |
| Metformin Hcl | 530 | 171 |
| Lisinopril | 500 | 157 |
| Semaglutidebrand: Ozempic | 468 | 91 |
| Amlodipine Besylate | 454 | 148 |
| Omeprazole |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$966 across 76 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
- 2005-11-18
- Last updated
- 2015-07-22
Frequently asked questions
- What is Silvia Diego's NPI number?
- Silvia Diego's National Provider Identifier (NPI) is 1922080506, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Silvia Diego's specialty?
- Silvia Diego is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Silvia Diego located?
- Silvia Diego's practice location on file with NPPES is 1317 Oakdale Rd, Modesto, CA 95355-3361.
- What is Silvia Diego's phone number?
- The practice phone number listed in the NPPES registry for Silvia Diego is (209) 522-3362.
- Does Silvia Diego accept Medicare?
- Silvia Diego is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Silvia Diego's NPI active?
- Yes — Silvia Diego's NPI (1922080506) is active in the NPPES registry as of the last update on 2015-07-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.