Wei Sum Li, M.D.
NPI 1629425046 · Internal Medicine Physician · Charlestown, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wei Sum Li, M.D. is a Internal Medicine Physician provider in Charlestown, MA (NPI 1629425046).
Provider details
- NPI number
- 1629425046
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- MD16644 (RI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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 tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
390 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 177 | $102 |
| 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 | 78 | $17 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 66 | $152 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 25 | $82 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 | 22 | $10 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 67 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 241 | 69 |
| Omeprazole | 156 | 45 |
| Oxycodone Hcl | 156 | 33 |
| Gabapentin | 135 | 34 |
| Lisinopril | 114 | 31 |
| Amlodipine Besylate | 113 | 29 |
| Buprenorphine Hcl/Naloxone Hcl |
Practice location
Mailing address
Additional practice locations (1)
- 55 Fruit StBoston, MA 02114-2621Phone: (617) 726-3557
Registry dates
- Enumerated
- 2016-05-16
- Last updated
- 2022-10-02
- Certified
- 2022-10-02
Frequently asked questions
- What is Wei Sum Li's NPI number?
- Wei Sum Li's National Provider Identifier (NPI) is 1629425046, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wei Sum Li's specialty?
- Wei Sum Li is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Wei Sum Li located?
- Wei Sum Li's practice location on file with NPPES is 73 High St, Charlestown, MA 02129-3026.
- What is Wei Sum Li's phone number?
- The practice phone number listed in the NPPES registry for Wei Sum Li is (617) 724-8135.
- Does Wei Sum Li accept Medicare?
- Wei Sum Li is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wei Sum Li's NPI active?
- Yes — Wei Sum Li's NPI (1629425046) is active in the NPPES registry as of the last update on 2022-10-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.