Daniel Thomas Horzempa, M.D.
Family Medicine Physician · Tucson, AZ
Daniel Thomas Horzempa, M.D. is a family medicine physician with a practice address in Tucson, Arizona, and NPI 1639478365, issued on Mar 21, 2011. Check the license (Arizona 49573, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Daniel Thomas Horzempa
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 49573 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 707 N Alvernon Way, Tucson, AZ 85711
- Phone
- (520) 694-1611
- Enumerated
- Mar 21, 2011
- Record last updated
- Mar 20, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (520) 694-1640
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,119 in Arizona → Look up another NPI →
Also registered at 707 N Alvernon Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Daniel Thomas Horzempa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 49573Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average family medicine physician in 2024
284 Medicare Part D claims for 35 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Rosuvastatin Calcium21 claims
- Levothyroxine Sodium20 claims
- Liothyronine Sodium17 claims
- Ezetimibe16 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.
Daniel Thomas Horzempa among 3,119 family medicine physician records in Arizona
Daniel Thomas Horzempa, M.D. is one of 3,119 family medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 64% of them.
- NPI issued2011 · 64% of these records are older, 33% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2015 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
554 family medicine physician records list a practice address in Tucson
They are 554 of the 18,788 NPPES records with a practice address in Tucson, and 3,119 family medicine physician records in Arizona.
All 3,119 in Arizona → Every provider in Tucson → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Eamon Armstrong, M.D.Tucson, AZ 857111629036934
- Mary Blatt, M.D.Tucson, AZ 857111902883127
- Colleen Cagno, MDTucson, AZ 857111245202720
- Brian Donovan, M.D.Tucson, AZ 857111780686949
- Rinly Gecosala, M.D., M.P.H.Tucson, AZ 857111033177043
- Linda Granath, M.D.Tucson, AZ 857111447235841
- Ramesh Karra, MDTucson, AZ 857111891759452
- Randa Kutob, MDTucson, AZ 857111326145889
Common questions
What is Daniel Thomas Horzempa, M.D.'s NPI number?
Daniel Thomas Horzempa, M.D.'s National Provider Identifier (NPI) is 1639478365, issued on Mar 21, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Daniel Thomas Horzempa, M.D. located?
The NPPES record lists a practice address at 707 N Alvernon Way, Tucson, AZ, 85711. Phone: (520) 694-1611. Providers update this record themselves, so call before visiting.
How can I verify Daniel Thomas Horzempa, M.D.'s license?
NPPES lists Arizona license number 49573, 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 Daniel Thomas Horzempa, M.D. prescribe under Medicare Part D?
In 2024, Daniel Thomas Horzempa, M.D. had 284 Medicare Part D claims for 35 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.