Bessy Flores Chang, MD
NPI 1437563137 · Nephrology Physician · Bronx, NY
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Bessy Flores Chang, MD is a Nephrology Physician provider in Bronx, NY (NPI 1437563137).
Provider details
- NPI number
- 1437563137
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 11-2011 (ZZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 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
412 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 195 | $87 |
| Hemodialysis Procedure With Physician Evaluation90935 | 92 | $78 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 40 | $108 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 36 | $146 |
| Dialysis Services, 2-3 Physician Visits Per Month (20 Years Or Older)90961 | 35 | $325 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 14 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sevelamer Carbonate | 43 | 11 |
| Dapagliflozin Propanediolbrand: Farxiga | 43 | 14 |
| Nifedipinebrand: Nifedipine Er | 42 | 13 |
| Calcium Acetate | 35 | 12 |
| Empagliflozinbrand: Jardiance | 28 | — |
| Losartan Potassium | 28 | 12 |
| Furosemide | 27 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$622 across 22 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
- 2014-06-20
- Last updated
- 2020-07-22
- Certified
- 2020-07-22
Frequently asked questions
- What is Bessy Flores Chang's NPI number?
- Bessy Flores Chang's National Provider Identifier (NPI) is 1437563137, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Bessy Flores Chang's specialty?
- Bessy Flores Chang is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Bessy Flores Chang located?
- Bessy Flores Chang's practice location on file with NPPES is 4422 3rd Ave Bldg 3, Bronx, NY 10457-2545.
- What is Bessy Flores Chang's phone number?
- The practice phone number listed in the NPPES registry for Bessy Flores Chang is (718) 960-6497.
- Does Bessy Flores Chang accept Medicare?
- Bessy Flores Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Bessy Flores Chang's NPI active?
- Yes — Bessy Flores Chang's NPI (1437563137) is active in the NPPES registry as of the last update on 2020-07-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.