Dr Charles John Peterson, MD - Medicare Emergency Medicine in Tucson, AZ

Dr Charles John Peterson, MD is a medicare enrolled "Emergency Medicine" physician in Tucson, Arizona. He went to Oregon Health Sciences University School Of Medicine and graduated in 1990 and has 34 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Ies Arizona Pllc and his current practice location is 5301 E Grant Road, Tucson Medical Center Emergency Department, Tucson, Arizona. You can reach out to his office (for appointments etc.) via phone at (520) 324-1922.

Dr Charles John Peterson is licensed to practice in Arizona (license number 21030) 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 1437234499.

Contact Information

Dr Charles John Peterson, MD
5301 E Grant Road, Tucson Medical Center Emergency Department,
Tucson, AZ 85712-2805
(520) 324-1922
(520) 324-1088

Map and Direction




Physician's Profile

Full NameDr Charles John Peterson
GenderMale
SpecialityEmergency Medicine
Experience34 Years
Location5301 E Grant Road, Tucson, 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:
  • Dr Charles John Peterson attended and graduated from Oregon Health Sciences University School Of Medicine in 1990
  NPI Data:
  • NPI Number: 1437234499
  • Provider Enumeration Date: 10/26/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 8325163223
  • Enrollment ID: I20100915001164

Medical Identifiers

Medical identifiers for Dr Charles John Peterson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1437234499NPI-NPPES
150384OtherAZAHCCCS
15038402MedicaidAZ

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 21030 (Arizona)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Tucson Medical CenterTucson, AZHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Ies Arizona Pllc781038288433

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. Dr Charles John Peterson allows following entities to bill medicare on his behalf.
Entity NameIes Arizona Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1821752213
PECOS PAC ID: 7810382884
Enrollment ID: O20220310001059
Entity NameIes Obs Arizona Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1356006670
PECOS PAC ID: 7719364991
Enrollment ID: O20220509000853

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. Dr Charles John Peterson 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
Dr Charles John Peterson, MD
5700 E Pima Street, Suite B,
Tucson, AZ 85712-5601

Ph: (520) 382-2819
Dr Charles John Peterson, MD
5301 E Grant Road, Tucson Medical Center Emergency Department,
Tucson, AZ 85712-2805

Ph: (520) 324-1922

Reviews and Comments


Emergency Medicine Doctors in Tucson, AZ

Martin Demant,
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1501 N Campbell Ave, Tucson, AZ 85724
Phone: 520-626-6507    Fax: 520-626-5675
John Guisto, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1501 N Campbell Ave, Tucson, AZ 85724
Phone: 520-874-3500    
Dr. Christopher Scott Florence, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 5301 E Grant Road, Tucson Medical Center Emergency Department, Tucson, AZ 85712
Phone: 520-324-1922    Fax: 520-324-1088
Dr. Jose Carbajal, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 350 N Wilmot Rd, Tucson, AZ 85711
Phone: 520-873-5429    
Dr. Ajit Itty, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1609 N Warren Ave Rm 118, Tucson, AZ 85724
Phone: 520-626-6312    
Philipp Lorenz Hannan, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3950 S Country Club Rd, Tucson, AZ 85714
Phone: 520-626-5582    
Dr. Alina Nguyen, DO
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1625 N Campbell Ave, Tucson, AZ 85719
Phone: 520-694-8888    

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.