Jewel Johl, M.D.
NPI 1407852858 · Hematology & Oncology Physician · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jewel Johl, M.D. is a Hematology & Oncology Physician provider in Walnut Creek, CA (NPI 1407852858).
Provider details
- NPI number
- 1407852858
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A69437 (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
21 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
3,621 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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 550 | $204 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 348 | $147 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 333 | $20 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 250 | $102 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 215 | $174 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rivaroxabanbrand: Xarelto | 75 | 20 |
| Apixabanbrand: Eliquis | 54 | 18 |
| Gabapentin | 42 | 12 |
| Prednisone | 34 | 17 |
| Ondansetron Hcl | 31 | 23 |
| Hydroxyurea | 29 | 13 |
| Prochlorperazine Maleate | 27 | 19 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$55,179 across 160 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
- 2005-06-21
- Last updated
- 2025-02-11
- Certified
- 2025-02-11
Frequently asked questions
- What is Jewel Johl's NPI number?
- Jewel Johl's National Provider Identifier (NPI) is 1407852858, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jewel Johl's specialty?
- Jewel Johl is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Jewel Johl located?
- Jewel Johl's practice location on file with NPPES is 575 Lennon Ln, Walnut Creek, CA 94598-2443.
- What is Jewel Johl's phone number?
- The practice phone number listed in the NPPES registry for Jewel Johl is (925) 433-8786.
- Does Jewel Johl accept Medicare?
- Jewel Johl is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jewel Johl's NPI active?
- Yes — Jewel Johl's NPI (1407852858) is active in the NPPES registry as of the last update on 2025-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.