Lee-Shing Chang, M.D.
NPI 1033473624 · Endocrinology, Diabetes & Metabolism Physician · Boston, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lee-Shing Chang, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Boston, MA (NPI 1033473624).
Provider details
- NPI number
- 1033473624
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 263128 (MA)
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 tenure28% of score
13 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
561 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 | 228 | $189 |
| 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 | 145 | $17 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 48 | $36 |
| Blood Glucose (sugar) Test Performed By Hand-Held Instrument82962 | 47 | $3 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 36 | $136 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 31 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 138 | 43 |
| Alendronate Sodium | 135 | 42 |
| Empagliflozinbrand: Jardiance | 135 | 32 |
| Semaglutidebrand: Ozempic | 129 | 40 |
| Metformin Hcl | 115 | 40 |
| Metformin Hclbrand: Metformin Hcl Er | 91 | 27 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-06-27
- Last updated
- 2020-09-24
- Certified
- 2020-09-24
Frequently asked questions
- What is Lee-Shing Chang's NPI number?
- Lee-Shing Chang's National Provider Identifier (NPI) is 1033473624, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lee-Shing Chang's specialty?
- Lee-Shing Chang is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Lee-Shing Chang located?
- Lee-Shing Chang's practice location on file with NPPES is 221 Longwood Avenue, Rfb-2, Boston, MA 02115.
- What is Lee-Shing Chang's phone number?
- The practice phone number listed in the NPPES registry for Lee-Shing Chang is (617) 732-5666.
- Does Lee-Shing Chang accept Medicare?
- Lee-Shing Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lee-Shing Chang's NPI active?
- Yes — Lee-Shing Chang's NPI (1033473624) is active in the NPPES registry as of the last update on 2020-09-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.