Diana Yu
NPI 1619233160 · Student in an Organized Health Care Education/Training Program · Stony Brook, NY
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Yu is a Student in an Organized Health Care Education/Training Program provider in Stony Brook, NY (NPI 1619233160).
Provider details
- NPI number
- 1619233160
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,144 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 222 | $207 |
| Blood Glucose (sugar) Test Performed By Hand-Held Instrument82962 | 186 | $3 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 134 | $148 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 109 | $89 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 106 | $38 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 38 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 315 | 104 |
| Semaglutidebrand: Ozempic | 142 | 55 |
| Levothyroxine Sodiumbrand: Synthroid | 135 | 47 |
| Metformin Hclbrand: Metformin Hcl Er | 129 | 55 |
| Dapagliflozin Propanediolbrand: Farxiga | 112 | 38 |
| Metformin Hcl | 107 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-04-10
- Last updated
- 2012-04-10
Frequently asked questions
- What is Diana Yu's NPI number?
- Diana Yu's National Provider Identifier (NPI) is 1619233160, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Yu's specialty?
- Diana Yu 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 Diana Yu located?
- Diana Yu's practice location on file with NPPES is 101 Nicolls Rd, Stony Brook, NY 11794-8160.
- What is Diana Yu's phone number?
- The practice phone number listed in the NPPES registry for Diana Yu is (631) 444-4000.
- Does Diana Yu accept Medicare?
- Diana Yu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Yu's NPI active?
- Yes — Diana Yu's NPI (1619233160) is active in the NPPES registry as of the last update on 2012-04-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.