Mark Loren Keldahl, MD - Medicare Vascular Surgery in Chicago, IL

Mark Loren Keldahl, MD is a medicare enrolled "Surgery" physician in Chicago, Illinois. He went to Rush Medical College Of Rush University and graduated in 2004 and has 20 years of diverse experience with area of expertise as Vascular Surgery. He is a member of the group practice Advocate Health And Hospitals Corporation and his current practice location is 3000 N. Halsted St., Suite 703, Chicago, Illinois. You can reach out to his office (for appointments etc.) via phone at (773) 296-3390.

Mark Loren Keldahl is licensed to practice in Illinois (license number 036-117220) 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 1114181658.

Contact Information

Mark Loren Keldahl, MD
3000 N. Halsted St., Suite 703,
Chicago, IL 60657
(773) 296-3390
(773) 296-7531

Map and Direction




Physician's Profile

Full NameMark Loren Keldahl
GenderMale
SpecialityVascular Surgery
Experience20 Years
Location3000 N. Halsted St., Chicago, Illinois
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:
  • Mark Loren Keldahl attended and graduated from Rush Medical College Of Rush University in 2004
  NPI Data:
  • NPI Number: 1114181658
  • Provider Enumeration Date: 07/14/2008
  • Last Update Date: 12/29/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 7719155381
  • Enrollment ID: I20110726000565

Medical Identifiers

Medical identifiers for Mark Loren Keldahl such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1114181658NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208600000XSurgery 036117220 (Illinois)Secondary
2086S0129XSurgery - Vascular Surgery 59517 (Tennessee)Secondary
208600000XSurgery 036-117220 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Advocate Illinois Masonic Medical CenterChicago, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Advocate Health And Hospitals Corporation78108009352484

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. Mark Loren Keldahl allows following entities to bill medicare on his behalf.
Entity NameAdvocate Health And Hospitals Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700824455
PECOS PAC ID: 7810800935
Enrollment ID: O20031106000064

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. Mark Loren Keldahl 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
Mark Loren Keldahl, MD
3000 N. Halsted St., Suite 703,
Chicago, IL 60657

Ph: (773) 296-3390
Mark Loren Keldahl, MD
3000 N. Halsted St., Suite 703,
Chicago, IL 60657

Ph: (773) 296-3390

Reviews and Comments


Surgery Doctors in Chicago, IL

Raelene D Kennedy, MD
Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 1725 W Harrison St Ste 810, Chicago, IL 60612
Phone: 312-942-5500    
Douglas Wiseman, MD
Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 7447 W Talcott Ave Ste 427, Chicago, IL 60631
Phone: 773-990-4024    
Dr. Bobiejo Ava Ferguson Bryan, MD
Surgery
Medicare: Medicare Enrolled
Practice Location: 5841 S Maryland Ave # Mc6040, Chicago, IL 60637
Phone: 773-702-1000    Fax: 773-702-2140
Adam Lam, MD
Surgery
Medicare: Medicare Enrolled
Practice Location: 5841 S Maryland Ave # Mc6040, Chicago, IL 60637
Phone: 773-702-1000    Fax: 773-702-2140
Kabeer Rajan Masih, MD
Surgery
Medicare: Medicare Enrolled
Practice Location: 1620 W Harrison St, Chicago, IL 60612
Phone: 312-942-5000    
Jay Prystowsky, MD
Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 680 N Lake Shore Dr, Suite 1000, Chicago, IL 60611
Phone: 312-695-9797    
Heron Rodriguez, MD
Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 675 N Saint Clair St, Northwestern Memorial Hospialt Galter 19-100, Chicago, IL 60611
Phone: 312-695-2714    

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.