Dr Frederick A Klein, MD - Medicare Gastroenterology in Tucson, AZ

Dr Frederick A Klein, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Tucson, Arizona. He went to Northwestern University Feinberg Medical School and graduated in 1980 and has 44 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Arizona Gastroenterology Ltd and his current practice location is 7566 N La Cholla Blvd, Ste A, Tucson, Arizona. You can reach out to his office (for appointments etc.) via phone at (520) 742-4139.

Dr Frederick A Klein is licensed to practice in Arizona (license number 11761) 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 1962487876.

Contact Information

Dr Frederick A Klein, MD
7566 N La Cholla Blvd, Ste A,
Tucson, AZ 85741-2307
(520) 742-4139
(520) 742-9618

Map and Direction




Physician's Profile

Full NameDr Frederick A Klein
GenderMale
SpecialityGastroenterology
Experience44 Years
Location7566 N La Cholla Blvd, 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 Frederick A Klein attended and graduated from Northwestern University Feinberg Medical School in 1980
  NPI Data:
  • NPI Number: 1962487876
  • Provider Enumeration Date: 12/13/2005
  • Last Update Date: 07/09/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 6406832146
  • Enrollment ID: I20110203001124

Medical Identifiers

Medical identifiers for Dr Frederick A Klein such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1962487876NPI-NPPES
AZ0025410OtherAZBLUE CROSS BLUE SHIELD
XPY035840OtherAZMEDI-CAL
223587MedicaidAZ
1Z0219OtherAZHEALTHNET
696649OtherAZAETNA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 11761 (Arizona)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Oro Valley HospitalOro valley, AZHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Arizona Gastroenterology Ltd650784223410

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 Frederick A Klein allows following entities to bill medicare on his behalf.
Entity NameArizona Gastroenterology Ltd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1043297690
PECOS PAC ID: 6507842234
Enrollment ID: O20040624001529

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 Frederick A Klein 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 Frederick A Klein, MD
7566 N La Cholla Blvd, Ste A,
Tucson, AZ 85741-2307

Ph: (520) 742-4139
Dr Frederick A Klein, MD
7566 N La Cholla Blvd, Ste A,
Tucson, AZ 85741-2307

Ph: (520) 742-4139

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.