Garret Rex Grizzle, DO - Medicare Anesthesiology in Phoenix, AZ

Garret Rex Grizzle, DO is a medicare enrolled "Anesthesiology" physician in Phoenix, Arizona. He went to West Virginia School Of Osteopathic Medicine and graduated in 2015 and has 9 years of diverse experience with area of expertise as Anesthesiology. He is a member of the group practice Mountain West Anesthesia Llc and his current practice location is 645 E Missouri Ave Ste 300, Phoenix, Arizona. You can reach out to his office (for appointments etc.) via phone at (602) 528-6960.

Garret Rex Grizzle is licensed to practice in Arizona (license number 007923) 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 1316324643.

Contact Information

Garret Rex Grizzle, DO
645 E Missouri Ave Ste 300,
Phoenix, AZ 85012-1351
(602) 528-6960
Not Available

Map and Direction




Physician's Profile

Full NameGarret Rex Grizzle
GenderMale
SpecialityAnesthesiology
Experience9 Years
Location645 E Missouri Ave Ste 300, Phoenix, 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:
  • Garret Rex Grizzle attended and graduated from West Virginia School Of Osteopathic Medicine in 2015
  NPI Data:
  • NPI Number: 1316324643
  • Provider Enumeration Date: 05/06/2015
  • Last Update Date: 06/15/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 9234431669
  • Enrollment ID: I20230427002894

Medical Identifiers

Medical identifiers for Garret Rex Grizzle such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1316324643NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207L00000XAnesthesiology 007923 (Arizona)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Utah Valley HospitalProvo, UTHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mountain West Anesthesia Llc9032018502246

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. Garret Rex Grizzle allows following entities to bill medicare on his behalf.
Entity NameMountain West Anesthesia Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1558391763
PECOS PAC ID: 9032018502
Enrollment ID: O20040103000057

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. Garret Rex Grizzle 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
Garret Rex Grizzle, DO
18330 N 79th Ave Apt 1136,
Glendale, AZ 85308-8360

Ph: (801) 836-9672
Garret Rex Grizzle, DO
645 E Missouri Ave Ste 300,
Phoenix, AZ 85012-1351

Ph: (602) 528-6960

Reviews and Comments


Anesthesiology Doctors in Phoenix, AZ

Dr. Ahmar Husain, MD
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Jeffrey Parker Morray, MD
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Dr. Eric L Pedicini, DO
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Phone: 602-262-8900    Fax: 602-262-8890
Laura Kareen Griffin, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 1919 E Thomas Rd, Phoenix, AZ 85016
Phone: 602-933-4660    Fax: 602-933-8945

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.