James Hwang, MD
NPI 1346545266 · Family Medicine Physician · Riverside, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Hwang, MD is a Family Medicine Physician provider in Riverside, CA (NPI 1346545266).
Provider details
- NPI number
- 1346545266
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A114395 (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
15 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 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tramadol Hcl/Acetaminophenbrand: Tramadol Hcl-Acetaminophen | 67 | 16 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 36 | 13 |
| Gabapentin | 26 | — |
| Meloxicam | 17 | — |
| Naproxen | 16 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-01-25
- Last updated
- 2021-11-04
- Certified
- 2021-11-04
Frequently asked questions
- What is James Hwang's NPI number?
- James Hwang's National Provider Identifier (NPI) is 1346545266, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Hwang's specialty?
- James Hwang is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Hwang located?
- James Hwang's practice location on file with NPPES is 10800 Magnolia Ave, Riverside, CA 92505-3043.
- What is James Hwang's phone number?
- The practice phone number listed in the NPPES registry for James Hwang is (951) 353-4539.
- Does James Hwang accept Medicare?
- James Hwang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Hwang's NPI active?
- Yes — James Hwang's NPI (1346545266) is active in the NPPES registry as of the last update on 2021-11-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.