Josephine Li, M.D.
NPI 1780003806 · Endocrinology, Diabetes & Metabolism Physician · Boston, MA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Josephine Li, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Boston, MA (NPI 1780003806).
Provider details
- NPI number
- 1780003806
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 278996 (MA)
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
12 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
340 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 | 65 | $135 |
| Hemoglobin A1c Level83036 | 55 | $10 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 50 | $36 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 41 | $82 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 34 | $195 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Semaglutidebrand: Ozempic | 66 | 12 |
| Dulaglutidebrand: Trulicity | 62 | 17 |
| Tirzepatidebrand: Mounjaro | 36 | — |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 23 | — |
| Metformin Hclbrand: Metformin Hcl Er | 12 | — |
| Pen Needle, Diabeticbrand: Nano 2nd Gen Pen Needle |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-04-16
- Last updated
- 2020-06-22
- Certified
- 2020-06-22
Frequently asked questions
- What is Josephine Li's NPI number?
- Josephine Li's National Provider Identifier (NPI) is 1780003806, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Josephine Li's specialty?
- Josephine Li is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Josephine Li located?
- Josephine Li's practice location on file with NPPES is 50 Staniford St Ste 340, Boston, MA 02114-2542.
- What is Josephine Li's phone number?
- The practice phone number listed in the NPPES registry for Josephine Li is (617) 726-8722.
- Does Josephine Li accept Medicare?
- Josephine Li is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Josephine Li's NPI active?
- Yes — Josephine Li's NPI (1780003806) is active in the NPPES registry as of the last update on 2020-06-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.