John Charles Sauer, FNP - Medicare Nurse Practitioner in Ajo, AZ

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John Charles Sauer, FNP is a medicare enrolled "Nurse Practitioner - Family" in Ajo, Arizona. He graduated from nursing school in 2018 and has 8 years of diverse experience with area of expertise as Nurse Practitioner. He is a member of the group practice Oak Street Health Physicians Group Of Arizona Pllc, Desert Senita Community Health Center and his current practice location is 410 N Malacate St, Ajo, Arizona. You can reach out to his office (for appointments etc.) via phone at (520) 387-5651.

John Charles Sauer is licensed to practice in Arizona (license number 220392) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1588136998.

Contact Information

John Charles Sauer, FNP
410 N Malacate St,
Ajo, AZ 85321-2254
(520) 387-5651
(520) 387-5347

Map and Direction




Provider's Profile

Full NameJohn Charles Sauer
GenderMale
SpecialityNurse Practitioner
Experience8 Years
Location410 N Malacate St, Ajo, Arizona
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • John Charles Sauer graduated from nursing school in 2018
  NPI Data:
  • NPI Number: 1588136998
  • Provider Enumeration Date: 12/23/2018
  • Last Update Date: 08/07/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 2567702665
  • Enrollment ID: I20190328000702

Medical Identifiers

Medical identifiers for John Charles Sauer such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1588136998NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363LF0000XNurse Practitioner - Family 220392 (Arizona)Primary
207Q00000XFamily Medicine 220392 (Arizona)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Angels Care Home HealthCasa grande, AZHome health agency

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Oak Street Health Physicians Group Of Arizona Pllc327493998876
Desert Senita Community Health Center347644186612

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. John Charles Sauer allows following entities to bill medicare on his behalf.
Entity NameDesert Senita Community Health Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1114037496
PECOS PAC ID: 3476441866
Enrollment ID: O20040308000777
Entity NameOak Street Health Physicians Group of Arizona PLLC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1063083590
PECOS PAC ID: 3274939988
Enrollment ID: O20210903002048

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. John Charles Sauer is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
John Charles Sauer, FNP
410 N. Malacate St.,
Ajo, AZ 85321

Ph: (520) 466-5774		John Charles Sauer, FNP
410 N Malacate St,
Ajo, AZ 85321-2254

Ph: (520) 387-5651

Reviews and Comments


Nurse Practitioner Nurses in Ajo, AZ

Boriana Rousseva Nikolova, FNP-BC
Nurse Practitioner
Medicare: Accepting Medicare Assignments
Practice Location: 410 N Malacate St, Ajo, AZ 85321
Phone: 520-387-5651    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.