Annie Yu, M.D.
NPI 1255454757 · Internal Medicine Physician · Sacramento, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Annie Yu, M.D. is a Internal Medicine Physician provider in Sacramento, CA (NPI 1255454757).
Provider details
- NPI number
- 1255454757
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A85155 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 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 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 214 | 89 |
| Calcitriol | 196 | 77 |
| Losartan Potassium | 151 | 62 |
| Furosemide | 138 | 58 |
| Hydralazine Hcl | 99 | 42 |
| Empagliflozinbrand: Jardiance | 96 | 40 |
| Spironolactone | 68 | 22 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$258 across 3 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
- 2007-04-09
- Last updated
- 2025-09-11
Frequently asked questions
- What is Annie Yu's NPI number?
- Annie Yu's National Provider Identifier (NPI) is 1255454757, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Annie Yu's specialty?
- Annie Yu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Annie Yu located?
- Annie Yu's practice location on file with NPPES is 4150 V St, Sacramento, CA 95817-1460.
- What is Annie Yu's phone number?
- The practice phone number listed in the NPPES registry for Annie Yu is (916) 734-3774.
- Does Annie Yu accept Medicare?
- Annie Yu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Annie Yu's NPI active?
- Yes — Annie Yu's NPI (1255454757) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.