Claudia Hsieh, D.O.
NPI 1255515979 · Family Medicine Physician · Temecula, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Claudia Hsieh, D.O. is a Family Medicine Physician provider in Temecula, CA (NPI 1255515979).
Provider details
- NPI number
- 1255515979
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 20A9680 (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
18 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 55 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 142 | 57 |
| Amlodipine Besylate | 137 | 50 |
| Rosuvastatin Calcium | 79 | 32 |
| Losartan Potassium | 75 | 29 |
| Gabapentin | 74 | 28 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 73 | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-12-18
- Last updated
- 2021-12-15
Frequently asked questions
- What is Claudia Hsieh's NPI number?
- Claudia Hsieh's National Provider Identifier (NPI) is 1255515979, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Claudia Hsieh's specialty?
- Claudia Hsieh is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Claudia Hsieh located?
- Claudia Hsieh's practice location on file with NPPES is 28780 Single Oak Dr, Temecula, CA 92590-3625.
- What is Claudia Hsieh's phone number?
- The practice phone number listed in the NPPES registry for Claudia Hsieh is (951) 676-4193.
- Does Claudia Hsieh accept Medicare?
- Claudia Hsieh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Claudia Hsieh's NPI active?
- Yes — Claudia Hsieh's NPI (1255515979) is active in the NPPES registry as of the last update on 2021-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.