Lynn Yu, M.D.
NPI 1649586561 · Internal Medicine Physician · Simsbury, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lynn Yu, M.D. is a Internal Medicine Physician provider in Simsbury, CT (NPI 1649586561).
Provider details
- NPI number
- 1649586561
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 052934 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
491 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) |
|---|---|---|
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 114 | $135 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 109 | $134 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 73 | $20 |
| 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'SG2211 | 47 | $17 |
| Administration of Influenza Virus VaccineG0008 | 40 | $34 |
| Admn Sarscov2 Vacc 1 Dose90480 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 69 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 282 | 80 |
| Atorvastatin Calcium | 269 | 77 |
| Losartan Potassium | 183 | 52 |
| Levothyroxine Sodium | 175 | 50 |
| Lisinopril | 162 | 49 |
| Rosuvastatin Calcium | 143 | 46 |
| Pantoprazole Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-08-30
- Last updated
- 2022-09-28
Frequently asked questions
- What is Lynn Yu's NPI number?
- Lynn Yu's National Provider Identifier (NPI) is 1649586561, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lynn Yu's specialty?
- Lynn Yu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lynn Yu located?
- Lynn Yu's practice location on file with NPPES is 720 Hopmeadow St, Simsbury, CT 06070-2224.
- What is Lynn Yu's phone number?
- The practice phone number listed in the NPPES registry for Lynn Yu is (860) 651-3519.
- Does Lynn Yu accept Medicare?
- Lynn Yu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lynn Yu's NPI active?
- Yes — Lynn Yu's NPI (1649586561) is active in the NPPES registry as of the last update on 2022-09-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.