JOHN KARL FREDERIKSEN M.D., PH.D.
NPI 1396987277
Pathology - Anatomic Pathology & Clinical Pathology in Chicago, IL

Q: What is John Frederiksen's NPI number?

The NPI number for John Frederiksen is 1396987277. It was assigned to this individual provider in the NPPES registry on March 24, 2009.

Q: What is John Frederiksen's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Q: When was this NPI record last updated?

The NPPES record for John Frederiksen was last updated on June 11, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 24, 2009PECOS EnrolledAccepts Medicare Assignment

87.08/100

CMS Quality Rating

840 S. WOOD ST., 130 CSN M/C 847, CHICAGO, IL 60612(312) 996-7312(312) 996-7586 Get Directions Write a Review

NPPES record last updated: June 11, 2024. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About John Karl Frederiksen M.d., Ph.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN KARL FREDERIKSEN M.D., PH.D. (NPI 1396987277) is an individual anatomic pathology & clinical pathology provider in Chicago, Illinois, licensed in Illinois (036.158028) and active in the NPI registry since March 2009. He is enrolled in Medicare PECOS, is affiliated with University Of Illinois Hospital And Clinics, and is a graduate of University Of Chicago, Pritzker School Of Medicine (2009).

NPPES Registry Identity

NPI1396987277

Entity TypeIndividualMale

Primary Taxonomy207ZP0102X

Provider Legal NameJOHN KARL FREDERIKSENCredential: M.D., PH.D.

Location Address840 S. WOOD ST., 130 CSN M/C 847Chicago, IL 60612-4325

Mailing Address840 S. Wood St., 130 Csn M/c 847Chicago, IL 60612-4325 · (312) 996-7312 · Fax (312) 996-7586

Phone(312) 996-7312

Fax(312) 996-7586

Sole ProprietorNo

Medical School CMSUniversity Of Chicago, Pritzker School Of MedicineGraduated 2009

Enumeration DateMarch 24, 2009

Last NPPES UpdateJune 11, 2024

NPPES CertifiedJune 11, 2024

✔ NPI 1396987277 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians

Taxonomy Code207ZP0102X

License✔ Licensed in IL · 036.158028

Definition

A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

840 S. WOOD ST., Chicago, IL 60612

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

John Karl Frederiksen M.d., Ph.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3577789114

PECOS Enrollment IDI20211230001410

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 12

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Hemoglobin analysis and measurement, electrophoresis 83020

Hemoglobin analysis and measurement, electrophoresis, is a lab test that separates and identifies proteins in your blood. It's used to diagnose conditions affecting red blood cells. It's a simple, painless procedure where a small blood sample is taken and analyzed.

236 services67 patients

Special stained specimen slides to examine tissue, each additional procedure 88341

Special stained specimen slides are used to analyze tissue in detail. In this process, extra procedures may be needed for a more thorough examination. These involve applying special stains to the tissue on slides, enhancing specific elements for closer study.

94 services11 patients

Pathology examination of tissue using a microscope, intermediate complexity 88305

A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.

64 services32 patients

Flow cytometry technique for dna or cell analysis, 9 to 15 markers 88188

Flow cytometry is a technique used to measure physical and chemical characteristics of cells or particles. It can analyze multiple markers (9 to 15) on a cell, helping to identify its type and function. This process can also examine DNA within cells for any abnormalities.

42 services36 patients

Blood smear interpretation by physician with written report 85060

Blood smear interpretation is a lab test where your doctor examines a sample of your blood under a microscope. They look for abnormalities in your blood cells which can help diagnose various conditions. You'll receive a written report of the findings.

26 services25 patients

Bone marrow, smear interpretation 85097

Bone marrow smear interpretation is a procedure where a small sample of your bone marrow is taken and examined under a microscope. This helps doctors identify any abnormal cells or signs of diseases such as anemia, leukemia, or infections. It's a crucial step in diagnosing various blood disorders.

26 services23 patients

Preparation of tissue for examination by removing any calcium present 88311

This procedure involves treating tissue samples to remove any calcium, which can interfere with the examination. The tissue is soaked in a special solution that safely dissolves the calcium, leaving the tissue intact for accurate analysis. This helps in making precise diagnoses.

25 services23 patients

Microscopic genetic analysis of tumor, manual 88360

Microscopic genetic analysis of a tumor involves examining your tumor's genes under a microscope. This helps identify specific genetic changes in the tumor cells. This information can aid in diagnosing, predicting disease progression, and determining the most effective treatment options.

19 services12 patients

Special stained specimen slides to examine tissue, initial procedure 88342

This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.

18 services15 patients

Special stained specimen slides to examine tissue including interpretation and report 88313

Special stained specimen slides are used to examine tissue samples. This involves applying special dyes to the tissue, which helps to highlight certain features under a microscope. The findings are then interpreted and a report is provided. This can aid in diagnosing various health conditions.

16 services15 patients

Molecular pathology procedure; physician interpretation and report G0452

A molecular pathology procedure involves analyzing your body's cells at a molecular level to identify any abnormalities. This can help detect diseases early. A physician will interpret the results and provide a detailed report, explaining the findings clearly.

16 services16 patients

Genetic sequencing localization, initial procedure 88365

Genetic sequencing localization is a process to identify where specific genes are located in your DNA. During the initial procedure, a sample of your cells is collected, usually through a simple swab or blood test. This data is then analyzed to pinpoint the location of certain genes. This can help understand your genetic makeup and potential health risks.

11 services11 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

University Of Illinois Hospital And Clinics

Acute Care Hospitals · Chicago, IL

2/5 CMS rating

OwnershipGovernment - State

CMS Certification Number140150

Location1740 West Taylor St Suite 1400Chicago, IL 60612 · Cook County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60612 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$138.86 typical visit price

range $60.08 – $183.39

Typical copayment $34.71 (range $15.02 – $45.84)

Most-billed visit code 99204

Established Patient

$105.70 typical visit price

range $18.97 – $148.12

Typical copayment $26.42 (range $4.74 – $37.03)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

87.08/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

70.79

Promoting Interoperability

100

Improvement Activities

Cost

52.82

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

NIKUNJ SHAH MD

Internal Medicine (Gastroenterology)

840 S. WOOD ST., UNIVERSITY OF ILLINOIS MEDICAL CENTER
CHICAGO, IL 60612

Cook County (312) 413-9037

ROBERT J. CABAY M.D., D.D.S.

Pathology (Anatomic Pathology & Clinical Pathology)

840 S. WOOD ST.
CHICAGO, IL 60612

Cook County (312) 996-7312

DR. BARTLOMIEJ LUKASZ RADZIK MD

Pathology (Anatomic Pathology & Clinical Pathology)

840 S. WOOD ST., SUITE 130 CSN
CHICAGO, IL 60612

Cook County (312) 996-7312

ERNEST JORREL BITUIN APN

Nurse Practitioner (Acute Care)

840 S. WOOD ST., M/C 787
CHICAGO, IL 60612

Cook County (312) 355-0105

DR. AKASH PATEL DO

Student in an Organized Health Care Education/Training Program

840 S. WOOD ST., SUITE 130 CSN, MC 847
CHICAGO, IL 60612

Cook County (636) 352-6386

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Frederiksen's NPI number?

The NPI number for John Frederiksen is 1396987277. It was assigned to this individual provider in the NPPES registry on March 24, 2009.

Where is John Frederiksen located?

John Frederiksen practices at 840 S. Wood St. 130 Csn M/C 847, Chicago, IL 60612. The listed phone number is (312) 996-7312.

What is John Frederiksen's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Is John Frederiksen enrolled in Medicare?

Yes. John Frederiksen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is John Frederiksen affiliated with any hospitals?

According to CMS data, John Frederiksen is affiliated with University Of Illinois Hospital And Clinics.

When was this NPI record last updated?

The NPPES record for John Frederiksen was last updated on June 11, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.