Daniel Ahn, D.O.
NPI 1669633897 · Hematology & Oncology Physician · Scottsdale, AZ
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Ahn, D.O. is a Hematology & Oncology Physician provider in Scottsdale, AZ (NPI 1669633897).
Provider details
- NPI number
- 1669633897
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- N9156 (TX)
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
17 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
1,811 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) |
|---|---|---|
| Injection of Additional New Drug Or Substance Into Vein96375 | 308 | $15 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 291 | $122 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 237 | $123 |
| Collection of Blood Sample From Implanted Device36591 | 126 | $26 |
| Administration of Non-Hormonal Anti-Neoplastic Chemotherapy Under Skin Or Into Muscle96401 | 92 | $69 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 85 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prochlorperazine Maleate | 70 | 46 |
| Ondansetron Hcl | 45 | 35 |
| Tramadol Hcl | 25 | — |
| Lipase/Protease/Amylasebrand: Creon | 23 | — |
| Dexamethasone | 23 | 13 |
| Apixabanbrand: Eliquis | 20 | — |
| Ondansetronbrand: Ondansetron Odt | 20 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20,017 across 24 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
- 2008-06-20
- Last updated
- 2020-09-08
- Certified
- 2020-09-08
Frequently asked questions
- What is Daniel Ahn's NPI number?
- Daniel Ahn's National Provider Identifier (NPI) is 1669633897, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Ahn's specialty?
- Daniel Ahn is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Daniel Ahn located?
- Daniel Ahn's practice location on file with NPPES is 13400 E Shea Blvd, Scottsdale, AZ 85259.
- What is Daniel Ahn's phone number?
- The practice phone number listed in the NPPES registry for Daniel Ahn is (480) 301-8000.
- Does Daniel Ahn accept Medicare?
- Daniel Ahn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Ahn's NPI active?
- Yes — Daniel Ahn's NPI (1669633897) is active in the NPPES registry as of the last update on 2020-09-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.