John Thaddeus Decker, MD - Medicare Obstetrics/gynecology in Tucson, AZ

John Thaddeus Decker, MD is a medicare enrolled "Obstetrics & Gynecology" physician in Tucson, Arizona. He went to University Of Arizona College Of Medicine and graduated in 1996 and has 28 years of diverse experience with area of expertise as Obstetrics/gynecology. He is a member of the group practice Genesis Ob Gyn Pllc and his current practice location is 6567 East Carondelet, Ste 455, Tucson, Arizona. You can reach out to his office (for appointments etc.) via phone at (520) 866-6486.

John Thaddeus Decker is licensed to practice in Arizona (license number 25939) 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 1578512257.

Contact Information

John Thaddeus Decker, MD
6567 East Carondelet, Ste 455,
Tucson, AZ 85710-6155
(520) 866-6486
(520) 296-4132

Map and Direction




Physician's Profile

Full NameJohn Thaddeus Decker
GenderMale
SpecialityObstetrics/gynecology
Experience28 Years
Location6567 East Carondelet, 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:
  • John Thaddeus Decker attended and graduated from University Of Arizona College Of Medicine in 1996
  NPI Data:
  • NPI Number: 1578512257
  • Provider Enumeration Date: 05/09/2006
  • Last Update Date: 01/09/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 5496849101
  • Enrollment ID: I20070925000475

Medical Identifiers

Medical identifiers for John Thaddeus Decker such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1578512257NPI-NPPES
499253MedicaidAZ

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 25931 (Arizona)Secondary
207V00000XObstetrics & Gynecology 25939 (Arizona)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Genesis Ob Gyn Pllc428472427959

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. John Thaddeus Decker allows following entities to bill medicare on his behalf.
Entity NameJ. Thad Decker Md Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1528254166
PECOS PAC ID: 6002901246
Enrollment ID: O20071002000791
Entity NameGenesis Ob Gyn Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1992994214
PECOS PAC ID: 4284724279
Enrollment ID: O20071213000739
Entity NameObhg Arizona Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902188642
PECOS PAC ID: 8325206055
Enrollment ID: O20120227000101

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. John Thaddeus Decker 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
John Thaddeus Decker, MD
3938 East Grant Road, Ste 248,
Tucson, AZ 85712-2559

Ph: (520) 298-3006
John Thaddeus Decker, MD
6567 East Carondelet, Ste 455,
Tucson, AZ 85710-6155

Ph: (520) 866-6486

Reviews and Comments


Obstetrics & Gynecology Doctors in Tucson, AZ

Dr. Teresa Rene Worstell Safer, MD
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Stephanie Runke, MD
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Robert Samuelson, MD
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Coleman Wade Davidson Ii, M.D.
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Richard W Langert, MD PC
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Mary Kay Durfee, MD
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Phone: 520-877-3800    Fax: 520-877-3801
Darren Housel, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 10350 E Drexel Rd Ste 260, Tucson, AZ 85747
Phone: 520-324-1727    Fax: 520-324-1700

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.