Zachary A. Prather, M.D.
Family Medicine Physician · Casa Grande, AZ
Zachary A. Prather, M.D. is a family medicine physician with a practice address in Casa Grande, Arizona, and NPI 1609139500, issued on Jun 17, 2012. Check the license (Arizona 48765, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Zachary A. Prather
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 48765 AZ
30716 LA
Self-reported in NPPES; status is on the state search - Practice location
- 1800 E. Florence Blvd., Casa Grande, AZ 85122
- Phone
- (480) 543-2034
- Enumerated
- Jun 17, 2012
- Record last updated
- Aug 26, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (480) 543-2647
- Medicare enrollment
- Enrolled (PECOS I20190723001840); accepts Medicare assignment
- Medical or professional school
- University Of Arizona College Of Medicine, 2012
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,119 in Arizona → Look up another NPI →
Also registered at 1800 E. Florence Blvd.
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Zachary A. Prather in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 48765Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average family medicine physician in 2024
387 Medicare Part D claims for 170 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 23 claims were for opioids.
Most prescribed
- Prednisone33 claims
- Cefdinir29 claims
- Furosemide21 claims
- Oxycodone Hcl16 claims
- Amlodipine Besylate15 claims
- Albuterol Sulfate Hfa14 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): 92.3 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).
Bills Medicare through one group practice
- Banner Hospital Based Physicians Arizona LLCMesa, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Zachary A. Prather among 3,119 family medicine physician records in Arizona
Zachary A. Prather, 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 2012, is newer than 67% of them.
- NPI issued2012 · 67% of these records are older, 31% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2012 · median 2006 among the 1,775 with a school on file
- Record last updated2019 · 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).
18 family medicine physician records list a practice address in Casa Grande
They are 18 of the 867 NPPES records with a practice address in Casa Grande, and 3,119 family medicine physician records in Arizona.
All 3,119 in Arizona → Every provider in Casa Grande → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jennifer Capizzi Garand, PA-CCasa Grande, AZ 851221881840973
- Daniel Chung, M.D.Casa Grande, AZ 851221821091984
- Justin Cole, MDCasa Grande, AZ 851221366068413
- Richard Fleming, MDCasa Grande, AZ 851221063515518
- Claude Fosdick, M.D.Casa Grande, AZ 851221568408516
- Deborah Hudak, D.O.Casa Grande, AZ 851221760485825
- Jami Jacobsen, FNPCasa Grande, AZ 851221609344464
- Robert Lundell, DOCasa Grande, AZ 851221740441435
Common questions
What is Zachary A. Prather, M.D.'s NPI number?
Zachary A. Prather, M.D.'s National Provider Identifier (NPI) is 1609139500, issued on Jun 17, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Zachary A. Prather, M.D. located?
The NPPES record lists a practice address at 1800 E. Florence Blvd., Casa Grande, AZ, 85122. Phone: (480) 543-2034. Providers update this record themselves, so call before visiting.
How can I verify Zachary A. Prather, M.D.'s license?
NPPES lists Arizona license number 48765, 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 Zachary A. Prather, M.D. prescribe under Medicare Part D?
In 2024, Zachary A. Prather, M.D. had 387 Medicare Part D claims for 170 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Zachary A. Prather, M.D.'s MIPS final score?
The 2023 MIPS final score is 92.3 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.