John Charles Sauer, FNP
Family Nurse Practitioner · Ajo, AZ
John Charles Sauer, FNP is a family nurse practitioner with a practice address in Ajo, Arizona, and NPI 1588136998, issued on Dec 23, 2018. Check the license (Arizona 220392, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Charles Sauer
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 220392 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 410 N Malacate St, Ajo, AZ 85321
- Phone
- (520) 387-5651
- Enumerated
- Dec 23, 2018
- Record last updated
- Aug 7, 2025
- Fax
- (520) 387-5347
- Medicare enrollment
- Enrolled (PECOS I20190328000702); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 410 N Malacate St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katiria Alvarez, RDRegistered Dietitian1851935787
- Walter Cayce, MD, MPHPreventive Medicine/Occupational Environmental Medicine Physician1528034626
- Yvonne Crewse, LPCProfessional Counselor1801074869
- Gorky Herrera, M.D.Psychiatry Physician1740222025
- Donald Innes, P.A.Physician Assistant1164646857
- Carol Johnson, D.O.Family Medicine Physician1811957145
Verify John Charles Sauer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 220392Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average family nurse practitioner in 2024
3,657 Medicare Part D claims for 387 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 17 claims were for opioids.
Most prescribed
- Atorvastatin Calcium234 claims
- Levothyroxine Sodium189 claims
- Lisinopril168 claims
- Amlodipine Besylate127 claims
- Omeprazole101 claims
- Albuterol Sulfate Hfa92 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.
Bills Medicare through 2 group practices
- Desert Senita Community Health CenterAjo, AZ
- Oak Street Health Physicians Group OF Arizona PLLCMesa, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
4 family nurse practitioner records list a practice address in Ajo
They are 4 of the 24 NPPES records with a practice address in Ajo, and 5,933 family nurse practitioner records in Arizona.
All 4 in Ajo → All 5,933 in Arizona → Every provider in Ajo →
Other family nurse practitioner records in Arizona
- Sharla Abalos, NPTucson, AZ1356017677
- Kristian Abarca, DNP, FNPWillcox, AZ1710587019
- Rosa Abarca, FNP-BC, FNP-CYuma, AZ1023716149
- Jessica AbawiChandler, AZ1952943235
- Dorothy AbbeyPhoenix, AZ1194535336
- Brady AbbottTaylor, AZ1295669331
- Mannal Abdalla, FNP, RN, CSAPhoenix, AZ1598258014
- Abdirahman AbdiScottsdale, AZ1497405229
- Dahab Abdukkaliq, FNPChandler, AZ1780190108
- Alyssa Abegg-Garcia, ARNPGilbert, AZ1578081980
Common questions
What is John Charles Sauer, FNP's NPI number?
John Charles Sauer, FNP's National Provider Identifier (NPI) is 1588136998, issued on Dec 23, 2018. An NPI identifies a provider in billing; it is not a license.
Where is John Charles Sauer, FNP located?
The NPPES record lists a practice address at 410 N Malacate St, Ajo, AZ, 85321. Phone: (520) 387-5651. Providers update this record themselves, so call before visiting.
How can I verify John Charles Sauer, FNP's license?
NPPES lists Arizona license number 220392, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does John Charles Sauer, FNP prescribe under Medicare Part D?
In 2024, John Charles Sauer, FNP had 3,657 Medicare Part D claims for 387 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.