Biomarkers, TumorCarcinoma, Squamous CellChromosomal Proteins, Non-Histone
Dr. Karen Therese Ferrer, MD
NPI1851411920PAC ID8729269543
- Medicare services, 2023
- 65
- Publications
- 15
- MIPS score, 2024
- 95
- Hospital affiliations
- 1
- Industry payments
- $20
- Practice address
- 1901 W Harrison St, Chicago, IL 60612
- Practice phone
- Call (312) 864-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ferrer's professional email, personal email and mobile number
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Dr. Karen Therese Ferrer is a pathologist in Chicago, Illinois
Dr. Ferrer practices at John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois, part of Cook County Government.
Dr. Ferrer's NPI, 1851411920, was assigned on March 30, 2007. Dr. Ferrer graduated from University of the Philippines College of Medicine in 1982. Dr. Ferrer holds Illinois license 036-078719.
NPI and contact details
- NPI
- 1851411920NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8729269543
- NPI enumeration date
- March 30, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (312) 864-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Karen Therese Ferrer practices at John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois
Dr. Ferrer's primary practice is John H. Stroger, Jr. Hospital of Cook County, at 1901 W Harrison St, Chicago, IL 60612 in Cook County. The practice phone is (312) 864-6000.
- John H. Stroger, Jr. Hospital of Cook County1901 W Harrison St, Chicago, IL 60612 · Cook CountyPhone(312) 864-6000
Source: Dmand AI Affiliation Data
Dr. Karen Therese Ferrer is affiliated with 1 site of care and 1 medical group
Dr. Ferrer's primary practice is John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois, part of Cook County Government. The medical group on file is John H. Stroger, Jr. Hospital of Cook County.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Karen Therese Ferrer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ferrer practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| John H. Stroger, Jr. Hospital of Cook County | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Karen Therese Ferrer is one of 487 pathologists in Illinois
Anatomic pathology and clinical pathology is Dr. Ferrer's primary specialty in the NPI Registry, under taxonomy code 207ZP0102X. Dr. Ferrer is board certified in anatomic pathology & clinical pathology by the American Board of Pathology. Dr. Ferrer is licensed in Illinois.
Specialties and state licenses
- Anatomic pathology and clinical pathology, IllinoisPrimary
Pathologists near Dr. Ferrer
Counts of pathologists with a Dmand AI profile, by place and practice. Each opens the list.
487pathologists in Illinois154pathologists in Chicago9pathologists at John H. Stroger, Jr. Hospital of Cook County
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Karen Therese Ferrer billed Medicare for 65 services in 2023
CMS data shows 65 Medicare services from Dr. Ferrer across 1 procedure code in 2023. Medicare paid $1,565 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202365
Paid by Medicare$1,565
Procedure codes1
Dr. Ferrer's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Lab and pathology
- 2022: 772023: 6516%
Dr. Ferrer compared with the Illinois median for pathologists, 2023
- Dr. Ferrer
- Illinois median
- Medicare services
- 65vs 1,38995% below
Medians across 481 pathologists in Illinois with Dmand AI profiles that report each measure.
Dr. Ferrer's most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Ferrer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ferrer and other pathologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Karen Therese Ferrer's patients have a median age of 56
Across all payers, Dmand AI patient panel data puts Dr. Ferrer's median patient age at 56, with 50% women.
Dr. Ferrer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Karen Therese Ferrer scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Ferrer for performance year 2024, reported as part of a group. Dr. Ferrer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Ferrer's MIPS scores, performance year 2024
- 95of 100Final score
- 74.7of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 85of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Karen Therese Ferrer has 15 publications on record
Dmand AI links 15 papers to Dr. Ferrer, published from 2010 to 2024. The most frequent topics are Biomarkers, Tumor, Black or African American and Immunohistochemistry. Dr. Ferrer has published most often in Ann Surg Oncol. Dr. Ferrer's most frequent co-authors are Daniel G. Danahey, MD, PhD, Keith A. Dookeran and John D. Goldenberg, MD.
Papers15
Years published2010 to 2024
Dr. Ferrer's papers by year, 2010 to 2024
Topics Dr. Ferrer writes about most
- Biomarkers, Tumor
- Black or African American
- Immunohistochemistry
- Papio
- Breast Neoplasms
- Carcinoma, Squamous Cell
- Gene Expression Regulation, Neoplastic
- Genes, p53
Dr. Ferrer's most frequent co-authors
- Daniel G. Danahey, MD, PhD2 shared papers
- Keith A. Dookeran2 shared papers
- John D. Goldenberg, MD2 shared papers
Recent publications by Dr. Ferrer
Black or African AmericanGenomics
Ann Surg Oncol
Biomarkers, TumorBlack or African AmericanBreast Neoplasms
Ann Surg Oncol
Biomarkers, TumorBlack or African AmericanBreast Neoplasms
See who Dr. Ferrer researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ferrer works with, so you can find a warm path to the right pathologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Karen Therese Ferrer received $20 in industry payments in 2023
CMS Open Payments shows 1 general payment to Dr. Ferrer from 1 drug or device company in 2023. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $20.
Companies that paid Dr. Ferrer the most, 2023 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Karen Therese Ferrer graduated from University of the Philippines College of Medicine
Dr. Ferrer graduated from University of the Philippines College of Medicine in 1982. Dr. Ferrer is a member of AMA, American Society for Clinical Pathology, Association of Directors of Anatomic and Surgical Pathology, CAP and USCAP.
- Medical school
- Board certified in anatomic pathology & clinical pathology
- Board certified in cytopathology
Source: Dmand AI Professional Profile Data
Dr. Karen Therese Ferrer accepts plans from 3 insurance carriers
Dr. Ferrer is in network with 3 carriers, including United Healthcare, DentaQuest and HCSC. PPO plans come from the most carriers, 2. Check the plan with the practice before a visit.
- United Healthcare
- DentaQuest
- HCSC
Plan types Dr. Ferrer accepts, by number of carriers
- PPO2
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Karen Therese Ferrer's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Karen Therese Ferrer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Karen Therese Ferrer's NPI number?
Dr. Karen Therese Ferrer's NPI number is 1851411920. It was assigned on March 30, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Karen Therese Ferrer?
Dr. Karen Therese Ferrer is a pathologist in Chicago, Illinois. The primary specialty in the NPI Registry is Anatomic Pathology & Clinical Pathology Physician (taxonomy code 207ZP0102X).
Where does Dr. Karen Therese Ferrer practice?
Dr. Ferrer practices at 1901 W Harrison St, Chicago, IL 60612. Dr. Ferrer's primary practice is John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois, part of Cook County Government.
What is Dr. Karen Therese Ferrer's office phone number?
The practice phone on file for Dr. Ferrer is (312) 864-6000.
What is Dr. Karen Therese Ferrer's medical license number?
Dr. Ferrer holds Illinois license 036-078719.
Which hospitals is Dr. Karen Therese Ferrer affiliated with?
Dr. Ferrer practices at John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois.
What medical group is Dr. Karen Therese Ferrer part of?
Dr. Ferrer is linked to John H. Stroger, Jr. Hospital of Cook County.
Does Dr. Karen Therese Ferrer accept Medicare?
Yes. CMS data shows Dr. Ferrer billed Medicare for 65 services in 2023, and Dr. Ferrer accepts Medicare assignment.
What is Dr. Karen Therese Ferrer's MIPS score?
Dr. Ferrer's MIPS final score for performance year 2024 is 95 out of 100, reported as part of a group.
Is Dr. Karen Therese Ferrer board certified?
Yes. Dr. Ferrer is board certified in anatomic pathology & clinical pathology by the American Board of Pathology.
Show 7 more questionsShow fewer questions
What services does Dr. Karen Therese Ferrer bill to Medicare?
In 2023, Dr. Ferrer's most billed Medicare services were lab and pathology test (88305).
Where did Dr. Karen Therese Ferrer go to medical school?
Dr. Ferrer graduated from University of the Philippines College of Medicine in 1982.
Has Dr. Karen Therese Ferrer received payments from drug or device companies?
CMS Open Payments shows $20 in general payments to Dr. Ferrer from 1 company from 2023 to 2023. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Karen Therese Ferrer been practicing?
Dr. Ferrer graduated from medical school in 1982, 44 years ago.
Does Dr. Karen Therese Ferrer do research?
Dmand AI links 15 publications to Dr. Ferrer, published from 2010 to 2024.
Who does Dr. Karen Therese Ferrer publish with?
Dr. Ferrer's most frequent co-authors are Daniel G. Danahey, MD, PhD (2 shared papers), Keith A. Dookeran (2 shared papers) and John D. Goldenberg, MD (2 shared papers).
What insurance does Dr. Karen Therese Ferrer accept?
Dr. Ferrer is in network with 3 carriers, including United Healthcare, DentaQuest and HCSC. PPO plans come from the most carriers, 2. Check the plan with the practice before a visit.
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