Dr Robert William Irwin, MD - Medicare Internal Medicine in Oro Valley, AZ

Dr Robert William Irwin, MD is a medicare enrolled "Internal Medicine" physician in Oro Valley, Arizona. He went to University Of Missouri, Columbia School Of Medicine and graduated in 1997 and has 27 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Desert Sage Internal Medicine Ltd and his current practice location is 1834 E Innovation Park Dr, Oro Valley, Arizona. You can reach out to his office (for appointments etc.) via phone at (520) 825-9656.

Dr Robert William Irwin is licensed to practice in Arizona (license number 28417) 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 1215948039.

Contact Information

Dr Robert William Irwin, MD
1834 E Innovation Park Dr,
Oro Valley, AZ 85755-1963
(520) 825-9656
(520) 818-2525



Physician's Profile

Full NameDr Robert William Irwin
GenderMale
SpecialityInternal Medicine
Experience27 Years
Location1834 E Innovation Park Dr, Oro Valley, 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 Robert William Irwin attended and graduated from University Of Missouri, Columbia School Of Medicine in 1997
  NPI Data:
  • NPI Number: 1215948039
  • Provider Enumeration Date: 08/10/2006
  • Last Update Date: 11/08/2010
  Medicare PECOS Information:
  • PECOS PAC ID: 7618869926
  • Enrollment ID: I20100127000666

Medical Identifiers

Medical identifiers for Dr Robert William Irwin such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1215948039NPI-NPPES
1Z7681OtherAZHEALTHNET ID
110209395OtherAZMEDICARE RR
86100229485739A002OtherAZCHAMPUS ID
AZ04553OtherAZMCARE SUB ID
28417OtherAZSTATE LICENSE #
AZ0877220OtherAZBLUE CROSS ID
861002294OtherAZDESERT SAGE TAX ID#

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 28417 (Arizona)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Oro Valley HospitalOro valley, AZHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Desert Sage Internal Medicine Ltd23653346612

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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 Robert William Irwin allows following entities to bill medicare on his behalf.
Entity NameDesert Sage Internal Medicine Ltd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1497713796
PECOS PAC ID: 2365334661
Enrollment ID: O20040329001684

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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 Robert William Irwin 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 Robert William Irwin, MD
1834 E Innovation Park Dr,
Oro Valley, AZ 85755-1963

Ph: (520) 825-9656
Dr Robert William Irwin, MD
1834 E Innovation Park Dr,
Oro Valley, AZ 85755-1963

Ph: (520) 825-9656

News Archive

Positive results from NovaBay Pharmaceuticals' Phase 2a trial of NVC-422

NovaBay Pharmaceuticals, Inc., a clinical stage biotechnology company developing first-in-class anti-infectives for the treatment and prevention of antibiotic-resistant infections, today reported positive results of an open-label Phase 2a trial of NVC-422 in chronically catheterized patients with significant bacteriuria, or bacteria in the urine. The study showed that NVC-422 was well tolerated and reduced or eliminated certain pathogens in the urine.

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Calif. reports more than 900,000 people have signed up for health plans

But officials note that the number of Latinos and young people enrolling on the state marketplace is still below expectations. Meanwhile, the troubled Maryland exchange is reportedly gearing up to adopt the technology used by Connecticut.

Read more News

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Internal Medicine Doctors in Oro Valley, AZ

Dr. Clarence James Hindman, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 75 E Beekeeper Trail, Oro Valley, AZ 85755
Phone: 520-991-6863    Fax: 520-797-6724
John D Dougherty Iii, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 555 E. Vuelta Caminata Del Rio, Oro Valley, AZ 85737
Phone: 520-547-5688    Fax: 520-547-4661
Benjamin Sarsah, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1824 E Innovation Park Dr, Oro Valley, AZ 85755
Phone: 520-623-2642    Fax: 520-623-6162
Corbin Ballam,
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1521 E Tangerine Rd Ste 315, Oro Valley, AZ 85755
Phone: 520-901-6350    
Dr. Corinne M Self, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1846 E Innovation Park Dr, Oro Valley, AZ 85755
Phone: 520-829-9987    Fax: 833-989-2161
Paul R Butler, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 1521 E Tangerine Rd, Suite #123, Oro Valley, AZ 85755
Phone: 520-901-6336    Fax: 520-901-6337

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