Annie Yan, MD
NPI 1679203442 · Ophthalmology Physician · Charleston, SC
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Annie Yan, MD is a Ophthalmology Physician provider in Charleston, SC (NPI 1679203442).
Provider details
- NPI number
- 1679203442
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- LL88071 (SC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
4 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Erythromycin Basebrand: Erythromycin | 114 | 81 |
| Latanoprost | 49 | 13 |
| Prednisolone Acetate | 19 | 13 |
| Timolol Maleate | 18 | — |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 18 | — |
| Netarsudil Mesylat/Latanoprostbrand: Rocklatan | 16 | — |
| Cyclosporinebrand: Restasis Multidose | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,306 across 27 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
- 2022-06-14
- Last updated
- 2022-06-15
- Certified
- 2022-06-15
Frequently asked questions
- What is Annie Yan's NPI number?
- Annie Yan's National Provider Identifier (NPI) is 1679203442, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Annie Yan's specialty?
- Annie Yan is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Annie Yan located?
- Annie Yan's practice location on file with NPPES is 169 Ashley Ave Rm 202, Charleston, SC 29425-8905.
- What is Annie Yan's phone number?
- The practice phone number listed in the NPPES registry for Annie Yan is (843) 792-2731.
- Does Annie Yan accept Medicare?
- Annie Yan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Annie Yan's NPI active?
- Yes — Annie Yan's NPI (1679203442) is active in the NPPES registry as of the last update on 2022-06-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.