Gregory T Olson, DO - Family Medicine in Sioux City, IA

Gregory T Olson, DO is a Family Medicine physician based in Sioux City, Iowa. Gregory T Olson is licensed to practice in Iowa (license number 4203) and his current practice location is 4545 Sergeant Rd, Sioux City, Iowa. He can be reached at his office (for appointments etc.) via phone at (712) 274-2400.

NPI number for Gregory T Olson is 1174841795 and his current mailing address is 814 Pierce St, Ste 300, Sioux City, Iowa. He does not participate in medicare program and thus does not accept medicare assignments. His NPI Number is 1174841795.

Contact Information

Gregory T Olson, DO
4545 Sergeant Rd,
Sioux City, IA 51106-4706
(712) 274-2400
(712) 274-1487

Map and Direction




Physician's Profile

Full NameGregory T Olson
GenderMale
SpecialityFamily Medicine
Location4545 Sergeant Rd, Sioux City, Iowa
Accepts Medicare AssignmentsDoes not participate in Medicare Program. He may not accept medicare assignment.
  NPI Data:
  • NPI Number: 1174841795
  • Provider Enumeration Date: 05/06/2010
  • Last Update Date: 11/21/2014

Medical Identifiers

Medical identifiers for Gregory T Olson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1174841795NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 4203 (Iowa)Primary

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. Gregory T Olson is NOT enrolled with medicare and thus cannot prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Gregory T Olson, DO
814 Pierce St, Ste 300,
Sioux City, IA 51101-1058

Ph: (712) 226-2600
Gregory T Olson, DO
4545 Sergeant Rd,
Sioux City, IA 51106-4706

Ph: (712) 274-2400

Reviews and Comments


Family Medicine Doctors in Sioux City, IA

Richard J. Kipp, D.O.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 3520 Singing Hills Blvd, Sioux City, IA 51106
Phone: 712-294-7400    Fax: 712-294-7436
Dylan C Greene, M.D
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1021 Nebraska St, Sioux City, IA 51105
Phone: 712-252-2477    Fax: 712-252-5920
Kornelia Kellogg, D.O.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2501 Pierce St, Sioux City, IA 51104
Phone: 712-294-5000    Fax: 712-294-5092
Michael John Jung, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2501 Pierce St, Sioux City, IA 51104
Phone: 712-294-5000    Fax: 712-294-5091
Daniel Irwin,
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2501 Pierce St, Sioux City, IA 51104
Phone: 712-294-5000    Fax: 712-294-5091
Rodney L. Cassens, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3500 Singing Hills Blvd, Ste 100, Sioux City, IA 51106
Phone: 712-274-4250    Fax: 712-274-4260
Eric Ryan Monk, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2720 Stone Park Blvd, Sioux City, IA 51104
Phone: 712-279-3290    

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.