Dennis Buck, DO
NPI 1114157195 · Hematology & Oncology Physician · Show Low, AZ
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dennis Buck, DO is a Hematology & Oncology Physician provider in Show Low, AZ (NPI 1114157195).
Provider details
- NPI number
- 1114157195
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 5355 (OK)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
138 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 102 | $98 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 24 | $146 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 12 | $182 |
Typical Medicare-allowed amounts for these services range $98–$182 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 24 | — |
| Anastrozole | 23 | — |
| Abiraterone Acetate | 23 | — |
| Prochlorperazine Maleate | 20 | 11 |
| Enzalutamidebrand: Xtandi | 18 | — |
| Zanubrutinibbrand: Brukinsa | 14 | — |
| Dexamethasone | 13 | — |
| Ondansetron Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$171 across 3 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
Additional practice locations (3)
- 1 Mercado St Ste 100Durango, CO 81301Phone: (970) 385-7977Fax: (970) 385-6727
- 95 S Pagosa BlvdPagosa Springs, CO 81147-8329Phone: (970) 731-3700Fax: (970) 731-3707
- 10109 E. 79th StreetTulsa, OK 74133Phone: (918) 286-5000Fax: (918) 249-7532
Registry dates
- Enumerated
- 2009-07-23
- Last updated
- 2025-10-08
- Certified
- 2025-10-08
Frequently asked questions
- What is Dennis Buck's NPI number?
- Dennis Buck's National Provider Identifier (NPI) is 1114157195, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dennis Buck's specialty?
- Dennis Buck is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Dennis Buck located?
- Dennis Buck's practice location on file with NPPES is 2500 E Hunt Dr Ste H-J, Show Low, AZ 85901-7954.
- What is Dennis Buck's phone number?
- The practice phone number listed in the NPPES registry for Dennis Buck is (928) 537-6937.
- Does Dennis Buck accept Medicare?
- Dennis Buck is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dennis Buck's NPI active?
- Yes — Dennis Buck's NPI (1114157195) is active in the NPPES registry as of the last update on 2025-10-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.