Yiyun Zhou
NPI 1326501537 · Ophthalmology Physician · Columbia, MD
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yiyun Zhou is a Ophthalmology Physician provider in Columbia, MD (NPI 1326501537).
Provider details
- NPI number
- 1326501537
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- D0096660 (MD)
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
7 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
1,839 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 Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 352 | $98 |
| Established Patient Complete Exam of Visual System92014 | 303 | $135 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 286 | $128 |
| Imaging of Retina92134 | 134 | $43 |
| Ultrasound Scan to Determine Eye Length and Lens Power76519 | 100 | $73 |
| Exam of Visual Field With Extended Testing92083 | 93 | $68 |
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 |
|---|---|---|
| Prednisolone Acetate | 164 | 118 |
| Moxifloxacin Hclbrand: Moxifloxacin | 149 | 98 |
| Latanoprost | 65 | 31 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 61 | 47 |
| Tobramycin/Dexamethasonebrand: Tobramycin-Dexamethasone | 59 | 50 |
| Ketorolac Tromethamine | 50 | 30 |
| Doxycycline Hyclate | 27 | 24 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$175 across 7 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
- 2019-04-13
- Last updated
- 2024-09-05
- Certified
- 2024-09-05
Frequently asked questions
- What is Yiyun Zhou's NPI number?
- Yiyun Zhou's National Provider Identifier (NPI) is 1326501537, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yiyun Zhou's specialty?
- Yiyun Zhou is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Yiyun Zhou located?
- Yiyun Zhou's practice location on file with NPPES is 8860 Columbia 100 Pkwy Ste 101, Columbia, MD 21045-2286.
- What is Yiyun Zhou's phone number?
- The practice phone number listed in the NPPES registry for Yiyun Zhou is (410) 997-9900.
- Does Yiyun Zhou accept Medicare?
- Yiyun Zhou is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yiyun Zhou's NPI active?
- Yes — Yiyun Zhou's NPI (1326501537) is active in the NPPES registry as of the last update on 2024-09-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.