Dr John B Chastain, MD - Medicare Otolaryngology in Tucson, AZ

Dr John B Chastain, MD is a medicare enrolled "Otolaryngology" physician in Tucson, Arizona. He went to Medical College Of Georgia School Of Medicine and graduated in 2002 and has 22 years of diverse experience with area of expertise as Otolaryngology. He is a member of the group practice Tucson E.n.t. Associates, P.c., San Carlos Apache Healthcare Corporation and his current practice location is 2121 N Craycroft Rd Bldg 5, Tucson, Arizona. You can reach out to his office (for appointments etc.) via phone at (520) 296-8500.

Dr John B Chastain is licensed to practice in Arizona (license number 51562) 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 1801915715.

Contact Information

Dr John B Chastain, MD
2121 N Craycroft Rd Bldg 5,
Tucson, AZ 85712-2801
(520) 296-8500
(520) 733-2389

Map and Direction




Physician's Profile

Full NameDr John B Chastain
GenderMale
SpecialityOtolaryngology
Experience22 Years
Location2121 N Craycroft Rd Bldg 5, 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 John B Chastain attended and graduated from Medical College Of Georgia School Of Medicine in 2002
  NPI Data:
  • NPI Number: 1801915715
  • Provider Enumeration Date: 03/29/2007
  • Last Update Date: 08/12/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 3779682125
  • Enrollment ID: I20160308000757

Medical Identifiers

Medical identifiers for Dr John B Chastain such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1801915715NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Y00000XOtolaryngology 51562 (Arizona)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Tucson Medical CenterTucson, AZHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Tucson E.n.t. Associates, P.c.993109385316
San Carlos Apache Healthcare Corporation0648580597112

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 John B Chastain allows following entities to bill medicare on his behalf.
Entity NameTucson E.n.t. Associates, P.c.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1265616312
PECOS PAC ID: 9931093853
Enrollment ID: O20040211000965
Entity NameChildren's Clinics For Rehabilitative Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1063454346
PECOS PAC ID: 2264503408
Enrollment ID: O20080617000099

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 John B Chastain 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 John B Chastain, MD
2121 N Craycroft Rd Bldg 5,
Tucson, AZ 85712-2801

Ph: (520) 296-8500
Dr John B Chastain, MD
2121 N Craycroft Rd Bldg 5,
Tucson, AZ 85712-2801

Ph: (520) 296-8500

Reviews and Comments


Otolaryngology Doctors in Tucson, AZ

Mr. John M Ruboyianes, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 3982 N Campbell Ave, Tucson, AZ 85719
Phone: 520-795-1581    Fax: 520-323-9562
Elias D. Stratigouleas, M.D.
Otolaryngology
Medicare: Accepting Medicare Assignments
Practice Location: 2121 N Craycroft Rd Bldg 5, Tucson, AZ 85712
Phone: 520-296-8500    Fax: 520-733-2389
Eugene P. Falk, M.D.
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Medicare: Not Enrolled in Medicare
Practice Location: 1775 W Saint Marys Rd, Suite 211, Tucson, AZ 85745
Phone: 520-792-2170    Fax: 520-792-9702
Claire Marguerite Eileen Gleadhill, MD
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Medicare: Medicare Enrolled
Practice Location: 1501 N Campell Ave, Tucson, AZ 85724
Phone: 520-626-6673    
Dr. David A Parry, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 1358 W. Orange Grove, Tucson, AZ 85704
Phone: 520-575-1272    Fax: 520-575-1789
Dr. Bernard J Miller, MD
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Medicare: Not Enrolled in Medicare
Practice Location: 6546 E Carondelet Dr, Tucson, AZ 85710
Phone: 520-886-1291    Fax: 520-296-4490
David Henry Zacheis, M.D.
Otolaryngology
Medicare: Accepting Medicare Assignments
Practice Location: 395 N Silverbell Rd Ste 201, Tucson, AZ 85745
Phone: 520-792-2170    Fax: 520-792-9702

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.