Chang Xu, M.D.
NPI 1619112075 · Nephrology Physician · Bronx, NY
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chang Xu, M.D. is a Nephrology Physician provider in Bronx, NY (NPI 1619112075).
Provider details
- NPI number
- 1619112075
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 262523 (NY)
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 tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
427 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 | 266 | $87 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 76 | $132 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 51 | $192 |
| Hemodialysis Procedure Requiring Repeated Evaluation90937 | 21 | $113 |
| Hemodialysis Procedure With Physician Evaluation90935 | 13 | $78 |
Typical Medicare-allowed amounts for these services range $78–$192 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Quetiapine Fumarate | 28 |
| Atorvastatin Calcium | 14 |
| Donepezil Hcl | 14 |
| Apixabanbrand: Eliquis | 14 |
| Metolazone | 14 |
| Metoprolol Succinate | 14 |
| Pantoprazole Sodium | 14 |
| Amiodarone Hcl | 14 |
| Torsemide | 14 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,345 across 10 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
Additional practice locations (1)
- 2050 Saw Mill River RdYorktown Heights, NY 10598-4143Phone: (914) 962-5533Fax: (914) 962-5532
Registry dates
- Enumerated
- 2008-12-12
- Last updated
- 2020-09-25
- Certified
- 2020-09-25
Frequently asked questions
- What is Chang Xu's NPI number?
- Chang Xu's National Provider Identifier (NPI) is 1619112075, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chang Xu's specialty?
- Chang Xu is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Chang Xu located?
- Chang Xu's practice location on file with NPPES is 130 W Kingsbridge Rd, Bronx, NY 10468-3904.
- What is Chang Xu's phone number?
- The practice phone number listed in the NPPES registry for Chang Xu is (718) 584-9000.
- Does Chang Xu accept Medicare?
- Chang Xu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chang Xu's NPI active?
- Yes — Chang Xu's NPI (1619112075) is active in the NPPES registry as of the last update on 2020-09-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.