John Karl Frederiksen, MD, PHD - Medicare Pathology in Chicago, IL

John Karl Frederiksen, MD, PHD is a medicare enrolled "Pathology - Anatomic Pathology & Clinical Pathology" physician in Chicago, Illinois. He went to University Of Chicago, Pritzker School Of Medicine and graduated in 2009 and has 15 years of diverse experience with area of expertise as Pathology. He is a member of the group practice The Board Of Trustees Of The University Of Illinois and his current practice location is 840 S. Wood St., 130 Csn M/c 847, Chicago, Illinois. You can reach out to his office (for appointments etc.) via phone at (312) 996-7312.

John Karl Frederiksen is licensed to practice in Illinois (license number 036.158028) 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 1396987277.

Contact Information

John Karl Frederiksen, MD, PHD
840 S. Wood St., 130 Csn M/c 847,
Chicago, IL 60612-4325
(312) 996-7312
(312) 996-7586



Physician's Profile

Full NameJohn Karl Frederiksen
GenderMale
SpecialityPathology
Experience15 Years
Location840 S. Wood 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:
  • John Karl Frederiksen attended and graduated from University Of Chicago, Pritzker School Of Medicine in 2009
  NPI Data:
  • NPI Number: 1396987277
  • Provider Enumeration Date: 03/24/2009
  • Last Update Date: 08/31/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 3577789114
  • Enrollment ID: I20211230001410

Medical Identifiers

Medical identifiers for John Karl Frederiksen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1396987277NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207ZP0102XPathology - Anatomic Pathology & Clinical Pathology 036.158028 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
University Of Illinois HospitalChicago, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
The Board Of Trustees Of The University Of Illinois3072422716929

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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. John Karl Frederiksen allows following entities to bill medicare on his behalf.
Entity NameThe Board Of Trustees Of The University Of Illinois
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1386863819
PECOS PAC ID: 3072422716
Enrollment ID: O20031112000158

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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. John Karl Frederiksen 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 Karl Frederiksen, MD, PHD
840 S. Wood St., 130 Csn M/c 847,
Chicago, IL 60612-4325

Ph: (312) 996-7312
John Karl Frederiksen, MD, PHD
840 S. Wood St., 130 Csn M/c 847,
Chicago, IL 60612-4325

Ph: (312) 996-7312

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Pathology Doctors in Chicago, IL

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Phone: 312-503-8144    Fax: 312-502-8249
Sandeep Gurbuxani,
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Dr. Katrina Krogh, MD
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Phone: 312-926-7913    Fax: 312-926-3127
Dr. Carmencita Garcia Senseng, MD
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Practice Location: 1900 W Polk St, Chicago, IL 60612
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Suman Setty,
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Phone: 866-600-2273    
Jayme Brentan, MD
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Practice Location: 680 N Lake Shore Dr, Suite 1000, Chicago, IL 60611
Phone: 312-695-9797    
Dr. Megan Elizabeth Sullivan, M.D.
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