Delwyn Lee Lassen, MD - Medicare in Sioux Center, IA

Delwyn Lee Lassen, MD is a medicare enrolled "Family Medicine" physician in Sioux Center, Iowa. His current practice location is 33 4th St Nw, Sioux Center, Iowa. You can reach out to his office (for appointments etc.) via phone at (712) 722-1700.

Delwyn Lee Lassen is licensed to practice in Iowa (license number 21150) 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 1558346015.

Contact Information

Delwyn Lee Lassen, MD
33 4th St Nw,
Sioux Center, IA 51250-1870
(712) 722-1700
(712) 722-1770

Map and Direction




Physician's Profile

Full NameDelwyn Lee Lassen
GenderMale
Speciality
Experience Years
Location33 4th St Nw, Sioux Center, Iowa
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:
  • Delwyn Lee Lassen attended and graduated from in
  NPI Data:
  • NPI Number: 1558346015
  • Provider Enumeration Date: 12/07/2005
  • Last Update Date: 12/15/2020
  Medicare PECOS Information:
  • PECOS PAC ID:
  • Enrollment ID:

Medical Identifiers

Medical identifiers for Delwyn Lee Lassen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1558346015NPI-NPPES
1336127828OtherGROUP NPI
1066548MedicaidIA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 21150 (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. Delwyn Lee Lassen 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
Delwyn Lee Lassen, MD
33 4th St Nw,
Sioux Center, IA 51250-1870

Ph: (712) 722-1700
Delwyn Lee Lassen, MD
33 4th St Nw,
Sioux Center, IA 51250-1870

Ph: (712) 722-1700

Reviews and Comments


Family Medicine Doctors in Sioux Center, IA

Richard Jongewaard, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 645 S Main Ave, Sioux Center, IA 51250
Phone: 712-722-2609    Fax: 712-722-8393
Shannon Vanderkooi, DO
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 1101 9th St Se, Sioux Center, IA 51250
Phone: 712-722-1271    
Dr. Lyndle Duane Shelby, M.D.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 1101 9th St Se, Sioux Center, IA 51250
Phone: 712-722-2609    Fax: 712-722-8426
Stacy Lynne Schaap, ARNP
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 33 4th St Nw, Sioux Center, IA 51250
Phone: 712-722-1700    
Lorianne S Andersen, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1101 9th St Se, Sioux Center, IA 51250
Phone: 712-722-2609    Fax: 712-722-4325
Casie Leightner, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1101 9th St Se, Sioux Center, IA 51250
Phone: 712-722-2609    
Dale Nystrom, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 645 S Main Ave, Sioux Center, IA 51250
Phone: 712-722-2609    Fax: 712-722-8392

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.