Ronald Tang, DO
NPI 1609022383 · Hematology & Oncology Physician · Pasadena, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ronald Tang, DO is a Hematology & Oncology Physician provider in Pasadena, CA (NPI 1609022383).
Provider details
- NPI number
- 1609022383
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A11008 (CA)
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
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,065 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 | 565 | $138 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 280 | $122 |
| Assessment of Emotional Or Behavioral Problems96127 | 215 | $5 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 158 | $9 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 156 | $16 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 144 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 70 | 25 |
| Letrozole | 60 | 23 |
| Epoetin Alfabrand: Procrit | 50 | 12 |
| Lenalidomidebrand: Revlimid | 46 | — |
| Prednisone | 39 | — |
| Leuprolide Acetatebrand: Lupron Depot | 36 | 18 |
| Palbociclibbrand: Ibrance | 36 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$10,991 across 228 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 (3)
- 433 N 4th StMontebello, CA 90640-4311Phone: (323) 721-1388Fax: (323) 248-7546
- 18300 Roscoe Blvd, Leavey Cancer CenterNorthridge, CA 91325-4105Phone: (818) 885-5431
- 6850 Sepulveda Blvd Ste 211Van Nuys, CA 91405Phone: (818) 782-4104Fax: (818) 475-1823
Registry dates
- Enumerated
- 2008-08-13
- Last updated
- 2021-07-26
- Certified
- 2021-07-26
Frequently asked questions
- What is Ronald Tang's NPI number?
- Ronald Tang's National Provider Identifier (NPI) is 1609022383, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Tang's specialty?
- Ronald Tang is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Tang located?
- Ronald Tang's practice location on file with NPPES is 50 Alessandro Pl Ste 310, Pasadena, CA 91105-4000.
- What is Ronald Tang's phone number?
- The practice phone number listed in the NPPES registry for Ronald Tang is (626) 288-0008.
- Does Ronald Tang accept Medicare?
- Ronald Tang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ronald Tang's NPI active?
- Yes — Ronald Tang's NPI (1609022383) is active in the NPPES registry as of the last update on 2021-07-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.