Chan Ma, MD
NPI 1487642120 · Nephrology Physician · New York, NY
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chan Ma, MD is a Nephrology Physician provider in New York, NY (NPI 1487642120).
Provider details
- NPI number
- 1487642120
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 180042 (NY)
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
832 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 50 Minutes99233 | 308 | $131 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 134 | $389 |
| Hemodialysis Procedure With Physician Evaluation90935 | 108 | $76 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 84 | $88 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 75 | $75 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lactulose | 115 | 28 |
| Furosemide | 106 | 40 |
| Sevelamer Carbonate | 96 | 20 |
| Finerenonebrand: Kerendia | 86 | 17 |
| Losartan Potassium | 81 | 27 |
| Icosapent Ethylbrand: Vascepa | 76 | 14 |
| Epoetin Alfabrand: Procrit | 74 | 22 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,497 across 71 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
- 2005-10-06
- Last updated
- 2025-03-19
- Certified
- 2025-03-19
Frequently asked questions
- What is Chan Ma's NPI number?
- Chan Ma's National Provider Identifier (NPI) is 1487642120, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chan Ma's specialty?
- Chan Ma is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Chan Ma located?
- Chan Ma's practice location on file with NPPES is 128 Mott St, New York, NY 10013-5540.
- What is Chan Ma's phone number?
- The practice phone number listed in the NPPES registry for Chan Ma is (212) 966-0068.
- Does Chan Ma accept Medicare?
- Chan Ma is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chan Ma's NPI active?
- Yes — Chan Ma's NPI (1487642120) is active in the NPPES registry as of the last update on 2025-03-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.