Nai-Lun Chang, M.D.
NPI 1639425689 · Cardiovascular Disease Physician · Brooklyn, NY
Enrolled with Medicare as Practitioner - Interventional Cardiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nai-Lun Chang, M.D. is a Cardiovascular Disease Physician provider in Brooklyn, NY (NPI 1639425689).
Provider details
- NPI number
- 1639425689
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 280722 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
547 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 131 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 109 | $146 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 69 | $104 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 61 | $221 |
| Electrocardiogram (ecg) Up to 30 Days Continuous With Review and Report By Health Care Professional93228 | 33 | $28 |
| Electrocardiogram (ecg) Up to 30 Days Continuous With Transmission of Patient Triggered Events With Review and Report By Health Care Professional |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 51 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 607 | 172 |
| Metoprolol Succinate | 584 | 161 |
| Apixabanbrand: Eliquis | 428 | 88 |
| Losartan Potassium | 357 | 115 |
| Carvedilol | 339 | 96 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 304 | 81 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$354 across 6 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 (2)
- 1865 86th StBrooklyn, NY 11214-3108Phone: (718) 975-8778
- 2455 Hylan BlvdStaten Island, NY 10306-3146Phone: (718) 362-6886
Registry dates
- Enumerated
- 2012-07-27
- Last updated
- 2024-06-29
- Certified
- 2024-06-29
Frequently asked questions
- What is Nai-Lun Chang's NPI number?
- Nai-Lun Chang's National Provider Identifier (NPI) is 1639425689, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nai-Lun Chang's specialty?
- Nai-Lun Chang is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Nai-Lun Chang located?
- Nai-Lun Chang's practice location on file with NPPES is 762 59th St, Brooklyn, NY 11220-3936.
- What is Nai-Lun Chang's phone number?
- The practice phone number listed in the NPPES registry for Nai-Lun Chang is (718) 393-5333.
- Does Nai-Lun Chang accept Medicare?
- Nai-Lun Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nai-Lun Chang's NPI active?
- Yes — Nai-Lun Chang's NPI (1639425689) is active in the NPPES registry as of the last update on 2024-06-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.