Isaac Bowman, MD
NPI 1891012852 · Medical Oncology Physician · Gilbert, AZ
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Isaac Bowman, MD is a Medical Oncology Physician provider in Gilbert, AZ (NPI 1891012852).
Provider details
- NPI number
- 1891012852
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 62482 (AZ)
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
16 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
817 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 | 370 | $139 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 253 | $94 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 75 | $175 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 48 | $94 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 48 | $100 |
| Prolonged Hospital Inpatient Or Observation Care Evaluation and Management Service(s) Beyond the Total Time for the Primary Service (when the Primary Service Has Been Selected Using Time on the Date of the Primary Service); Each Additional 15 Minutes By Th |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Relugolixbrand: Orgovyx | 176 | 26 |
| Prednisone | 122 | 45 |
| Abiraterone Acetate | 111 | 18 |
| Gabapentin | 62 | 25 |
| Tamsulosin Hcl | 55 | 19 |
| Dexamethasone | 52 | 33 |
| Darolutamidebrand: Nubeqa | 44 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,438 across 6 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
- 2010-04-29
- Last updated
- 2025-08-06
- Certified
- 2024-09-24
Frequently asked questions
- What is Isaac Bowman's NPI number?
- Isaac Bowman's National Provider Identifier (NPI) is 1891012852, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isaac Bowman's specialty?
- Isaac Bowman is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Isaac Bowman located?
- Isaac Bowman's practice location on file with NPPES is 2946 E Banner Gateway Dr, Gilbert, AZ 85234-2165.
- What is Isaac Bowman's phone number?
- The practice phone number listed in the NPPES registry for Isaac Bowman is (480) 256-6444.
- Does Isaac Bowman accept Medicare?
- Isaac Bowman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Isaac Bowman's NPI active?
- Yes — Isaac Bowman's NPI (1891012852) is active in the NPPES registry as of the last update on 2025-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.