David Thio, MD
NPI 1548244965 · Internal Medicine Physician · Riverside, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Thio, MD is a Internal Medicine Physician provider in Riverside, CA (NPI 1548244965).
Provider details
- NPI number
- 1548244965
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G80273 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
535 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 366 | $132 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 53 | $133 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 51 | $20 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 37 | $185 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 28 | $94 |
Typical Medicare-allowed amounts for these services range $20–$185 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 131 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 507 | 159 |
| Losartan Potassium | 489 | 143 |
| Felodipinebrand: Felodipine Er | 361 | 100 |
| Levothyroxine Sodium | 310 | 87 |
| Metformin Hcl | 309 | 93 |
| Lisinopril | 304 | 100 |
| Omeprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-30
- Last updated
- 2025-04-11
- Certified
- 2025-04-11
Frequently asked questions
- What is David Thio's NPI number?
- David Thio's National Provider Identifier (NPI) is 1548244965, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Thio's specialty?
- David Thio is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is David Thio located?
- David Thio's practice location on file with NPPES is 7117 Brockton Ave, Riverside, CA 92506-2615.
- What is David Thio's phone number?
- The practice phone number listed in the NPPES registry for David Thio is (951) 782-3619.
- Does David Thio accept Medicare?
- David Thio is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Thio's NPI active?
- Yes — David Thio's NPI (1548244965) is active in the NPPES registry as of the last update on 2025-04-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.