Dennis Andrew Buck, DO
Hematology & Oncology Physician · Show Low, AZ
Dennis Andrew Buck, DO is a hematology & oncology physician with a practice address in Show Low, Arizona, and NPI 1114157195, issued on Jul 23, 2009. Check the license (Arizona 011954, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Dennis Andrew Buck
- Credential
- DO
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- 011954 AZ
SL0646 NV
5355 OK
Self-reported in NPPES; status is on the state search - Practice location
- 2500 E Hunt Dr Ste H-J, Show Low, AZ 85901
- Phone
- (928) 537-6937
- Enumerated
- Jul 23, 2009
- Record last updated
- Oct 8, 2025
- Fax
- (928) 532-8798
- Medicare enrollment
- Enrolled (PECOS I20251118004116); accepts Medicare assignment
- Medical or professional school
- Touro Un College Of Osteopathic Medicine, Vallejo, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 285 in Arizona → Look up another NPI →
Also registered at 2500 E Hunt Dr Ste H-J
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marilyn King, FNPNurse Practitioner1740286707
- Salman Malad, MDMedical Oncology Physician1316936222
- Jeffrey PeacockRadiation Oncology Physician1033566534
- Maureen Wallace, PA-CMedical Physician Assistant1073559399
Verify Dennis Andrew Buck in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 011954Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
312 Medicare Part D claims for 73 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 34% of claims.
Most prescribed
- Prednisone24 claims
- Abiraterone Acetate23 claims
- Anastrozole23 claims
- Prochlorperazine Maleate20 claims
- Xtandi18 claims
- Brukinsa14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 85.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $170.70
3 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Carris Health LLCWillmar, MN
- Summit Healthcare AssociationShow Low, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dennis Andrew Buck among 285 hematology & oncology physician records in Arizona
Dennis Andrew Buck, DO is one of 285 hematology & oncology physician records with a practice address in Arizona. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 61% of them.
- NPI issued2009 · 61% of these records are older, 34% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated2009 · median 2003 among the 229 with a school on file
- Record last updated2025 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Arizona
There are 285 hematology & oncology physician records in Arizona.
All 285 in Arizona → Every provider in Show Low → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Snehal Thakkar, MDShow Low, AZ 859011518160241
- Awais Khan, M.D.Flagstaff, AZ 860011720233018
- Paul Kuefler, M.D.Flagstaff, AZ 860011982666244
- Deborah Lindquist, M.D.Flagstaff, AZ 860011720027337
- Wendy Chen, DOOro Valley, AZ 857551659317469
- Shamudheen Mohammed Rafiyath, M.D.Tucson, AZ 857471528202900
- Lata Aluri, MDTucson, AZ 857451467581736
- Akshay Amaraneni, MDTucson, AZ 857451306285267
Common questions
What is Dennis Andrew Buck, DO's NPI number?
Dennis Andrew Buck, DO's National Provider Identifier (NPI) is 1114157195, issued on Jul 23, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Dennis Andrew Buck, DO located?
The NPPES record lists a practice address at 2500 E Hunt Dr Ste H-J, Show Low, AZ, 85901. Phone: (928) 537-6937. Providers update this record themselves, so call before visiting.
How can I verify Dennis Andrew Buck, DO's license?
NPPES lists Arizona license number 011954, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Dennis Andrew Buck, DO prescribe under Medicare Part D?
In 2024, Dennis Andrew Buck, DO had 312 Medicare Part D claims for 73 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Dennis Andrew Buck, DO's MIPS final score?
The 2023 MIPS final score is 85.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.