Clayton Polowy, MD
NPI 1336112119 · Hematology & Oncology Physician · Mesa, AZ
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clayton Polowy, MD is a Hematology & Oncology Physician provider in Mesa, AZ (NPI 1336112119).
Provider details
- NPI number
- 1336112119
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 32750 (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
20 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
1,679 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 Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 385 | $55 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 289 | $123 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, Additional Sequential Infusion, 1 Hour Or Less96367 | 239 | $27 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 136 | $15 |
| Administration of Hormonal Anti-Neoplastic Chemotherapy Under Skin Or Into Muscle96402 | 133 | $34 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 360 | 101 |
| Apixabanbrand: Eliquis | 97 | 13 |
| Exemestane | 81 | 17 |
| Ibrutinibbrand: Imbruvica | 52 | — |
| Ondansetronbrand: Ondansetron Odt | 49 | 32 |
| Acyclovir | 46 | 11 |
| Hydroxyurea | 45 | — |
| Letrozole |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,467 across 112 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
- 2006-02-10
- Last updated
- 2023-02-24
- Certified
- 2023-02-24
Frequently asked questions
- What is Clayton Polowy's NPI number?
- Clayton Polowy's National Provider Identifier (NPI) is 1336112119, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clayton Polowy's specialty?
- Clayton Polowy is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Clayton Polowy located?
- Clayton Polowy's practice location on file with NPPES is 1432 S Dobson Rd, Mesa, AZ 85202-4769.
- What is Clayton Polowy's phone number?
- The practice phone number listed in the NPPES registry for Clayton Polowy is (480) 969-3637.
- Does Clayton Polowy accept Medicare?
- Clayton Polowy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Clayton Polowy's NPI active?
- Yes — Clayton Polowy's NPI (1336112119) is active in the NPPES registry as of the last update on 2023-02-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.