Warren Hsu, D.O.
NPI 1053473843 · Allergy Physician · Oakland Gardens, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Warren Hsu, D.O. is a Allergy Physician provider in Oakland Gardens, NY (NPI 1053473843).
Provider details
- NPI number
- 1053473843
- Entity type
- Individual
- Primary specialty
- Allergy PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 186109 (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
1,108 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 | 271 | $128 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 233 | $89 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 190 | $9 |
| Test for Hearing Various Pitches Using Earphone and Device Placed Against the Bone92553 | 83 | $49 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 67 | $16 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent Visit |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 90 | 38 |
| Amlodipine Besylate | 75 | 29 |
| Rosuvastatin Calcium | 72 | 26 |
| Losartan Potassium | 39 | 17 |
| Icosapent Ethylbrand: Vascepa | 26 | — |
| Tamsulosin Hcl | 26 | 11 |
| Fluticasone Propionate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$167 across 4 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
- 2006-12-15
- Last updated
- 2013-02-26
Frequently asked questions
- What is Warren Hsu's NPI number?
- Warren Hsu's National Provider Identifier (NPI) is 1053473843, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Warren Hsu's specialty?
- Warren Hsu is listed in the NPPES registry with a primary specialty of Allergy Physician (Allopathic & Osteopathic Physicians).
- Where is Warren Hsu located?
- Warren Hsu's practice location on file with NPPES is 21215 Union Tpke, Oakland Gardens, NY 11364-3519.
- What is Warren Hsu's phone number?
- The practice phone number listed in the NPPES registry for Warren Hsu is (718) 217-8600.
- Does Warren Hsu accept Medicare?
- Warren Hsu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Warren Hsu's NPI active?
- Yes — Warren Hsu's NPI (1053473843) is active in the NPPES registry as of the last update on 2013-02-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.