Leslie Fang, MD
NPI 1558351734 · Nephrology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leslie Fang, MD is a Nephrology Physician provider in Boston, MA (NPI 1558351734).
Provider details
- NPI number
- 1558351734
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 39471 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
7,394 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 1,801 | $139 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 1,024 | $196 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 911 | $16 |
| Urinalysis Using Microscope81015 | 804 | $3 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 772 | $9 |
| White Blood Cell Count85004 | 468 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 108 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 651 | 208 |
| Amlodipine Besylate | 377 | 123 |
| Olmesartan Medoxomil | 307 | 87 |
| Levothyroxine Sodium | 302 | 102 |
| Metoprolol Succinate | 217 | 76 |
| Omeprazole | 196 | 65 |
| Apixaban |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$5 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-27
- Last updated
- 2014-04-22
Frequently asked questions
- What is Leslie Fang's NPI number?
- Leslie Fang's National Provider Identifier (NPI) is 1558351734, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leslie Fang's specialty?
- Leslie Fang is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Leslie Fang located?
- Leslie Fang's practice location on file with NPPES is 151 Merrimac St, Boston, MA 02114-4714.
- What is Leslie Fang's phone number?
- The practice phone number listed in the NPPES registry for Leslie Fang is (617) 742-2054.
- Does Leslie Fang accept Medicare?
- Leslie Fang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leslie Fang's NPI active?
- Yes — Leslie Fang's NPI (1558351734) is active in the NPPES registry as of the last update on 2014-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.