Chau Dang, MD
NPI 1861422982 · Hematology & Oncology Physician · New York, NY
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chau Dang, MD is a Hematology & Oncology Physician provider in New York, NY (NPI 1861422982).
Provider details
- NPI number
- 1861422982
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 203243 (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
19 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
521 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 | 361 | $111 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 93 | $88 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 29 | $211 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 20 | $80 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 18 | $142 |
Typical Medicare-allowed amounts for these services range $80–$211 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 183 | 62 |
| Tamoxifen Citrate | 117 | 40 |
| Letrozole | 64 | 21 |
| Ibandronate Sodium | 31 | — |
| Lorazepam | 28 | 11 |
| Dexamethasone | 27 | 16 |
| Abemaciclibbrand: Verzenio | 25 | — |
| Oxycodone Hcl | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,046 across 9 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
- 2006-07-04
- Last updated
- 2015-02-24
Frequently asked questions
- What is Chau Dang's NPI number?
- Chau Dang's National Provider Identifier (NPI) is 1861422982, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chau Dang's specialty?
- Chau Dang is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Chau Dang located?
- Chau Dang's practice location on file with NPPES is 1275 York Ave, New York, NY 10021-6007.
- What is Chau Dang's phone number?
- The practice phone number listed in the NPPES registry for Chau Dang is (212) 639-2000.
- Does Chau Dang accept Medicare?
- Chau Dang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chau Dang's NPI active?
- Yes — Chau Dang's NPI (1861422982) is active in the NPPES registry as of the last update on 2015-02-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.