Ann S Andonyan, MD - Medicare Emergency Medicine in Phoenix, AZ

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Ann S Andonyan, MD is a medicare enrolled "Emergency Medicine" physician in Phoenix, Arizona. She went to University Of Arizona College Of Medicine and graduated in 1998 and has 27 years of diverse experience with area of expertise as Emergency Medicine. She is a member of the group practice Emergency Physicians Southwest Pc, 303 Emergency Physicians Pllc, Emcare - Pnx Emergency Physicians Llc and her current practice location is 350 W Thomas Rd, St. Joseph's Hospital, Phoenix, Arizona. You can reach out to her office (for appointments etc.) via phone at (602) 406-3000.

Ann S Andonyan is licensed to practice in Arizona (license number 29265) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1871500496.

Contact Information

Ann S Andonyan, MD
350 W Thomas Rd, St. Joseph's Hospital,
Phoenix, AZ 85013-4409
(602) 406-3000
(602) 406-7165

Map and Direction




Physician's Profile

Full NameAnn S Andonyan
GenderFemale
SpecialityEmergency Medicine
Experience27 Years
Location350 W Thomas Rd, Phoenix, Arizona
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Ann S Andonyan attended and graduated from University Of Arizona College Of Medicine in 1998
  NPI Data:
  • NPI Number: 1871500496
  • Provider Enumeration Date: 08/03/2006
  • Last Update Date: 04/27/2009
  Medicare PECOS Information:
  • PECOS PAC ID: 6507767704
  • Enrollment ID: I20040318000199

Medical Identifiers

Medical identifiers for Ann S Andonyan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1871500496NPI-NPPES
589385MedicaidAZ
P00033441OtherAZRR MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 29265 (Arizona)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Banner Baywood Medical CenterMesa, AZHospital
Mountain Vista Medical Center, LpMesa, AZHospital
Honorhealth Deer Valley Medical CenterPhoenix, AZHospital
John C. Lincoln North Mountain HospitalPhoenix, AZHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Emergency Physicians Southwest Pc226453852975
303 Emergency Physicians Pllc256769252829
Emcare - Pnx Emergency Physicians Llc377957416558

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. Ann S Andonyan allows following entities to bill medicare on her behalf.
Entity NameHonorhealth
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801092564
PECOS PAC ID: 1456258607
Enrollment ID: O20031216000350
Entity NameProgressive Medical Associates Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1548218613
PECOS PAC ID: 7113829599
Enrollment ID: O20040308001331
Entity NameEmcare - Pnx Emergency Physicians Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902855992
PECOS PAC ID: 3779574165
Enrollment ID: O20040524000667
Entity NameLoop 101 Emergency Physicians Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376573378
PECOS PAC ID: 0840295481
Enrollment ID: O20061003000466
Entity NameEmergency Physicians Southwest Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1912053752
PECOS PAC ID: 2264538529
Enrollment ID: O20070502000382
Entity NameMountain Vista Emergency Physicians, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1164642963
PECOS PAC ID: 8325139223
Enrollment ID: O20070807000555
Entity NameQuantum Healthcare Medical Associates Of Arizona Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1821391269
PECOS PAC ID: 5597946350
Enrollment ID: O20110228000065
Entity Name303 Emergency Physicians Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1518398585
PECOS PAC ID: 2567692528
Enrollment ID: O20140313001083
Entity NameSteward Emergency Physicians Of Arizona Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1558827998
PECOS PAC ID: 4486995420
Enrollment ID: O20190401001375
Entity NamePhoenix Emergency Physicians Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1366156259
PECOS PAC ID: 7012238934
Enrollment ID: O20230403000159
Entity NameUsacs Of Colorado Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1235765074
PECOS PAC ID: 4981507571
Enrollment ID: O20250116003493
Entity NameUsacs Emergency Medicine Of Arizona Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1770392490
PECOS PAC ID: 7113447475
Enrollment ID: O20250218000978

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. Ann S Andonyan 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
Ann S Andonyan, MD
1241 W Mineral Ave, Suite100,
Littleton, CO 80120-5685

Ph: (303) 759-0854		Ann S Andonyan, MD
350 W Thomas Rd, St. Joseph's Hospital,
Phoenix, AZ 85013-4409

Ph: (602) 406-3000

Reviews and Comments


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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.