Wanwan Xu, M.D.
NPI 1700199551 · Student in an Organized Health Care Education/Training Program · Saint Louis, MO
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wanwan Xu, M.D. is a Student in an Organized Health Care Education/Training Program provider in Saint Louis, MO (NPI 1700199551).
Provider details
- NPI number
- 1700199551
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 2010020475 (MO)
Specialties & taxonomies
- Student in an Organized Health Care Education/Training ProgramPrimary390200000XLicense 2010020475 (MO)
Student, Health Care
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 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 64 | 22 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 38 | 15 |
| Diclofenac Sodium | 25 | 19 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 18 | — |
| Prednisolone Acetate | 14 | — |
| Brimonidine Tartrate | 11 | — |
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 , 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
- 2010-07-22
- Last updated
- 2022-01-14
Frequently asked questions
- What is Wanwan Xu's NPI number?
- Wanwan Xu's National Provider Identifier (NPI) is 1700199551, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wanwan Xu's specialty?
- Wanwan Xu is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Wanwan Xu located?
- Wanwan Xu's practice location on file with NPPES is 1402 S Grand Blvd, Saint Louis, MO 63104-1004.
- What is Wanwan Xu's phone number?
- The practice phone number listed in the NPPES registry for Wanwan Xu is (314) 577-8760.
- Does Wanwan Xu accept Medicare?
- Wanwan Xu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wanwan Xu's NPI active?
- Yes — Wanwan Xu's NPI (1700199551) is active in the NPPES registry as of the last update on 2022-01-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.