Charlene Chang-Smith, MD
NPI 1871550939 · Ophthalmology Physician · Oroville, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charlene Chang-Smith, MD is a Ophthalmology Physician provider in Oroville, CA (NPI 1871550939).
Provider details
- NPI number
- 1871550939
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A070256 (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
2,646 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 Problem Focused Exam of Visual System92012 | 651 | $93 |
| Established Patient Complete Exam of Visual System92014 | 601 | $130 |
| Imaging of Optic Nerve92133 | 327 | $38 |
| Imaging of Retina92134 | 254 | $42 |
| Exam of Visual Field With Extended Testing92083 | 207 | $64 |
| New Patient Complete Exam of Visual System92004 | 98 | $154 |
| Exam of the Internal Drainage System of Eye92020 |
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 |
|---|---|---|
| Latanoprost | 320 | 70 |
| Ketorolac Tromethamine | 209 | 113 |
| Azelastine Hcl | 179 | 73 |
| Timolol Maleate | 168 | 62 |
| Prednisolone Acetate | 165 | 110 |
| Erythromycin Basebrand: Erythromycin | 147 | 71 |
| Difluprednate | 105 | 63 |
| Brimonidine Tartrate | 92 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$5,715 across 6 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
- 2006-05-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is Charlene Chang-Smith's NPI number?
- Charlene Chang-Smith's National Provider Identifier (NPI) is 1871550939, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charlene Chang-Smith's specialty?
- Charlene Chang-Smith is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Charlene Chang-Smith located?
- Charlene Chang-Smith's practice location on file with NPPES is 2809 Olive Hwy, Oroville, CA 95966-6131.
- What is Charlene Chang-Smith's phone number?
- The practice phone number listed in the NPPES registry for Charlene Chang-Smith is (530) 532-7650.
- Does Charlene Chang-Smith accept Medicare?
- Charlene Chang-Smith is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charlene Chang-Smith's NPI active?
- Yes — Charlene Chang-Smith's NPI (1871550939) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.