Januario Castro
NPI 1871642538 · Hematology & Oncology Physician · Scottsdale, AZ
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Januario Castro is a Hematology & Oncology Physician provider in Scottsdale, AZ (NPI 1871642538).
Provider details
- NPI number
- 1871642538
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- A72129 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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 tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,770 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 476 | $123 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 222 | $15 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 186 | $123 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 98 | $14 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 90 | $75 |
| Administration of Chemotherapy Into Vein, Each Additional Hour96415 | 75 | $27 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Acyclovir | 95 | 35 |
| Acalabrutinib Maleatebrand: Calquence | 60 | — |
| Allopurinol | 58 | 26 |
| Venetoclaxbrand: Venclexta | 55 | 11 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 44 | 17 |
| Zanubrutinibbrand: Brukinsa | 31 | — |
| Prochlorperazine Maleate | 27 | 18 |
Practice location
Mailing address
Additional practice locations (2)
- 9350 Campus Drive-0663Mc 0663La Jolla, CA 92037-0663Phone: (858) 657-8570Fax: (858) 534-5620
- 9350 Campus Drive-0663Mc 0663La Jolla, CA 92037-0663Phone: (858) 657-8570Fax: (858) 534-5620
Registry dates
- Enumerated
- 2007-01-10
- Last updated
- 2026-02-25
- Certified
- 2026-02-25
Frequently asked questions
- What is Januario Castro's NPI number?
- Januario Castro's National Provider Identifier (NPI) is 1871642538, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Januario Castro's specialty?
- Januario Castro is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Januario Castro located?
- Januario Castro's practice location on file with NPPES is 13400 E Shea Blvd, Scottsdale, AZ 85259.
- What is Januario Castro's phone number?
- The practice phone number listed in the NPPES registry for Januario Castro is (480) 301-8000.
- Does Januario Castro accept Medicare?
- Januario Castro is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Januario Castro's NPI active?
- Yes — Januario Castro's NPI (1871642538) is active in the NPPES registry as of the last update on 2026-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.