Margaret Yu, MD
NPI 1811173735 · Nephrology Physician · Stanford, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Yu, MD is a Nephrology Physician provider in Stanford, CA (NPI 1811173735).
Provider details
- NPI number
- 1811173735
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD60017302 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 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
927 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 201 | $89 |
| Dialysis Services, 2-3 Physician Visits Per Month (20 Years Or Older)90961 | 171 | $338 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 96 | $405 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 86 | $145 |
| Dialysis Procedure Including 1 Evaluation90945 | 72 | $99 |
| Hemodialysis Procedure With Physician Evaluation90935 | 46 | $80 |
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 |
|---|---|---|
| Amlodipine Besylate | 96 | 27 |
| Losartan Potassium | 94 | 31 |
| Chlorthalidone | 54 | 14 |
| Empagliflozinbrand: Jardiance | 48 | — |
| Furosemide | 47 | 15 |
| Torsemide | 43 | 15 |
| Sevelamer Carbonate | 41 | 19 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 across 1 record (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
- 2008-01-10
- Last updated
- 2024-04-24
- Certified
- 2024-04-24
Frequently asked questions
- What is Margaret Yu's NPI number?
- Margaret Yu's National Provider Identifier (NPI) is 1811173735, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Yu's specialty?
- Margaret Yu is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Yu located?
- Margaret Yu's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305-2200.
- What is Margaret Yu's phone number?
- The practice phone number listed in the NPPES registry for Margaret Yu is (650) 723-4000.
- Does Margaret Yu accept Medicare?
- Margaret Yu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Yu's NPI active?
- Yes — Margaret Yu's NPI (1811173735) is active in the NPPES registry as of the last update on 2024-04-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.