Leslie S T Fang, MD, PC
NPI 1871739649 · Internal Medicine Physician · Boston, MA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leslie S T Fang, MD, PC is a Internal Medicine Physician organization in Boston, MA (NPI 1871739649).
Provider details
- NPI number
- 1871739649
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Leslie Fang, Owner(617) 742-2054
- License
- 39471 (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 tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-12-30
- Last updated
- 2008-12-30
Frequently asked questions
- What is Leslie S T Fang, MD, PC's NPI number?
- Leslie S T Fang, MD, PC's National Provider Identifier (NPI) is 1871739649, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Leslie S T Fang, MD, PC?
- Leslie S T Fang, MD, PC is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Leslie S T Fang, MD, PC located?
- Leslie S T Fang, MD, PC's practice location on file with NPPES is 151 Merrimac St, Boston, MA 02114-4714.
- What is Leslie S T Fang, MD, PC's phone number?
- The practice phone number listed in the NPPES registry for Leslie S T Fang, MD, PC is (617) 742-2054.
- Does Leslie S T Fang, MD, PC accept Medicare?
- Leslie S T Fang, MD, PC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Leslie S T Fang, MD, PC?
- The authorized official listed on Leslie S T Fang, MD, PC's NPPES record is Leslie Fang, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Leslie S T Fang, MD, PC's NPI active?
- Yes — Leslie S T Fang, MD, PC's NPI (1871739649) is active in the NPPES registry as of the last update on 2008-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.