Thomas Joseph, MD
NPI 1861430092 · Hematology & Oncology Physician · Santa Clarita, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Joseph, MD is a Hematology & Oncology Physician provider in Santa Clarita, CA (NPI 1861430092).
Provider details
- NPI number
- 1861430092
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A94387 (CA)
Specialties & taxonomies
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
20 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
2,975 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 | 823 | $140 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 402 | $84 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 362 | $17 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 260 | $153 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 186 | $18 |
| Injection of Drug Or Substance Under Skin Or Into Muscle |
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 |
|---|---|---|
| Anastrozole | 170 | 47 |
| Apixabanbrand: Eliquis | 91 | 22 |
| Dexamethasone | 85 | 27 |
| Ondansetron Hcl | 64 | 29 |
| Famotidine | 62 | 22 |
| Hydroxyurea | 50 | 11 |
| Letrozole | 45 | — |
| Abiraterone Acetate | 36 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$759 across 8 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)
- 16801 Devonshire StGranada Hills, CA 91344-7405Phone: (818) 366-1878Fax: (818) 360-7850
- 15031 Rinaldi St Ste 150Mission Hills, CA 91345-1207Phone: (818) 660-4700Fax: (818) 837-1987
Registry dates
- Enumerated
- 2006-06-02
- Last updated
- 2020-11-05
- Certified
- 2020-11-05
Frequently asked questions
- What is Thomas Joseph's NPI number?
- Thomas Joseph's National Provider Identifier (NPI) is 1861430092, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Joseph's specialty?
- Thomas Joseph is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Joseph located?
- Thomas Joseph's practice location on file with NPPES is 23823 Valencia Blvd Ste 250, Santa Clarita, CA 91355-9512.
- What is Thomas Joseph's phone number?
- The practice phone number listed in the NPPES registry for Thomas Joseph is (661) 799-1999.
- Does Thomas Joseph accept Medicare?
- Thomas Joseph is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Joseph's NPI active?
- Yes — Thomas Joseph's NPI (1861430092) is active in the NPPES registry as of the last update on 2020-11-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.