John Q. Hierling, D.O.
Family Medicine Physician · Parker, AZ
John Q. Hierling, D.O. is a family medicine physician with a practice address in Parker, Arizona, and NPI 1629073689, issued on Jun 16, 2005. Check the license (Arizona 1945, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Q. Hierling
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 1945 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1200 W Mohave RD, Parker, AZ 85344
- Phone
- (928) 668-1833
- Enumerated
- Jun 16, 2005
- Record last updated
- Oct 16, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (928) 684-7457
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,119 in Arizona → Look up another NPI →
Also registered at 1200 W Mohave RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Barton Butterbaugh, M.D.Family Medicine Physician1881732899
- Taylor Corry, CRNACertified Registered Nurse Anesthetist1245598671
- Gloria Eagle, P.A.-CMedical Physician Assistant1770543506
- Elizabeth Fisher, FNPFamily Nurse Practitioner1639941909
Verify John Q. Hierling in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 1945Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average family medicine physician in 2024
108 Medicare Part D claims for 15 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Lisinopril12 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.
John Q. Hierling among 3,119 family medicine physician records in Arizona
John Q. Hierling, D.O. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2013 · 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).
12 family medicine physician records list a practice address in Parker
They are 12 of the 352 NPPES records with a practice address in Parker, and 3,119 family medicine physician records in Arizona.
All 3,119 in Arizona → Every provider in Parker → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Quinn Bott, MD, PHARMDParker, AZ 853441336572619
- Barton Butterbaugh, M.D.Parker, AZ 853441881732899
- Jesus Carpio, M.D.Parker, AZ 853441487675617
- Cedric Davis, M.DParker, AZ 853441356534994
- Gerald Ferris, M.D.Parker, AZ 853441417999103
- John Gnassi, MDParker, AZ 853441629066105
- Richard Greco, D.O.Parker, AZ 853441497730717
- Mary McCoy, M.D.Parker, AZ 853441437289782
Common questions
What is John Q. Hierling, D.O.'s NPI number?
John Q. Hierling, D.O.'s National Provider Identifier (NPI) is 1629073689, issued on Jun 16, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Q. Hierling, D.O. located?
The NPPES record lists a practice address at 1200 W Mohave RD, Parker, AZ, 85344. Phone: (928) 668-1833. Providers update this record themselves, so call before visiting.
How can I verify John Q. Hierling, D.O.'s license?
NPPES lists Arizona license number 1945, 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 John Q. Hierling, D.O. prescribe under Medicare Part D?
In 2024, John Q. Hierling, D.O. had 108 Medicare Part D claims for 15 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.