Christopher Kellogg, MD
NPI 1740254457 · Hematology & Oncology Physician · Chandler, AZ
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Kellogg, MD is a Hematology & Oncology Physician provider in Chandler, AZ (NPI 1740254457).
Provider details
- NPI number
- 1740254457
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 23612 (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
2,305 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 | 942 | $54 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 378 | $123 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, Additional Sequential Infusion, 1 Hour Or Less96367 | 288 | $27 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 115 | $14 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 111 | $15 |
| Administration of Additional New Drug Or Substance Into Vein, 1 Hour Or Less96417 | 96 |
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 |
|---|---|---|
| Letrozole | 105 | 28 |
| Apixabanbrand: Eliquis | 68 | 12 |
| Acyclovir | 50 | 13 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 50 | 13 |
| Imatinib Mesylate | 48 | — |
| Hydroxyurea | 48 | 13 |
| Acalabrutinib Maleatebrand: Calquence | 45 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$703 across 40 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
- 2006-02-17
- Last updated
- 2022-11-15
- Certified
- 2022-11-15
Frequently asked questions
- What is Christopher Kellogg's NPI number?
- Christopher Kellogg's National Provider Identifier (NPI) is 1740254457, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Kellogg's specialty?
- Christopher Kellogg is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Kellogg located?
- Christopher Kellogg's practice location on file with NPPES is 695 S Dobson Rd, Chandler, AZ 85224-5665.
- What is Christopher Kellogg's phone number?
- The practice phone number listed in the NPPES registry for Christopher Kellogg is (480) 821-2838.
- Does Christopher Kellogg accept Medicare?
- Christopher Kellogg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Kellogg's NPI active?
- Yes — Christopher Kellogg's NPI (1740254457) is active in the NPPES registry as of the last update on 2022-11-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.