Keri A. Schaefer, PA-C

  • Winfield, IL
  • Physician assistant
NPI1780053983PAC ID3779885918
Medicare patients, 2024
62
Part D claims, 2024
81
MIPS score, 2024
96
Hospital affiliations
2
Industry payments
$8
Practice address
25 North Winfield Road, Winfield, IL 60190
Practice phone
Call (630) 682-1600
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Northwestern Medicine Central DuPage Hospital

Hospital · Winfield, Illinois

See all 8 affiliations

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Keri A. Schaefer is a physician assistant in Winfield, Illinois

Keri Schaefer practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare.

Keri Schaefer's NPI, 1780053983, was assigned on September 17, 2015. Keri Schaefer holds Illinois license 085.005617.

NPI and contact details
Medicare PAC ID
3779885918
NPI enumeration date
September 17, 2015
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(630) 682-1600
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
37
Medical school graduation
2015

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Keri A. Schaefer practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois

Keri Schaefer's primary practice is Northwestern Medicine Central DuPage Hospital, at 25 North Winfield Road, Winfield, IL 60190 in Du Page County. The practice phone is (630) 682-1600.

Source: Dmand AI Affiliation Data

Keri A. Schaefer is affiliated with 5 sites of care and 3 medical groups

Keri Schaefer's primary practice is Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare. Keri Schaefer is also affiliated with Northwestern Medicine Delnor Hospital. The medical group on file is Northwestern Medicine Regional Medical Group. Dmand AI also links Keri Schaefer to 2 more medical groups, 1 breast imaging center, 1 clinical lab and 1 group practice or clinic, each named with a free account.

See all 8 affiliations for Keri Schaefer

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Keri A. Schaefer's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Keri Schaefer practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Northwestern Medicine Central DuPage HospitalAvailable with a free account
+4 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Keri A. Schaefer is one of 4,299 physician assistants in Illinois

Physician assistant is Keri Schaefer's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Keri Schaefer is licensed in Illinois.

Specialties and state licenses

  • Physician assistant, IllinoisPrimaryLicense 085.005617 · taxonomy 363A00000X

Physician assistants near Keri Schaefer

Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Keri A. Schaefer treated 62 Medicare patients in 2024, average age 74

CMS counts 62 Medicare patients who saw Keri Schaefer in 2024. The largest group is 65 to 74, with 30 patients. 75% of them have high cholesterol, and 73% have high blood pressure. Their average risk score is 1.16, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Keri Schaefer's median patient age at 64, with 58% women.

Medicare patients, 202462
Average age74
Average risk score1.16

Keri Schaefer's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Keri Schaefer's Medicare patients by sex, 2024

  • Women3658%
  • Men2642%

Chronic conditions among Keri Schaefer's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure73%
  3. Arthritis53%
  4. Diabetes34%
  5. Anxiety32%
  6. Chronic kidney disease29%
  7. Ischemic heart disease29%
  8. Cancer27%

Share of Medicare patients with each condition. A patient can have several.

Keri Schaefer's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 64

Patient panel by sex, all payers

  • Women58%
  • Men42%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Keri A. Schaefer wrote 81 Medicare Part D claims in 2024

In 2024, Keri Schaefer wrote 81 Medicare Part D claims for 60 patients. 99% of them were for generic drugs.

Part D claims, 202481
Part D patients60

Keri Schaefer's Part D claims by kind of drug, 2024

  • Generic80 claims99%
  • Brand-name and other1 claims1%

Drug classes CMS tracks in Keri Schaefer's Part D claims, 2024

  • Opioids62%50 of 81 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

Keri A. Schaefer scored 96 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 96 out of 100 for Keri Schaefer for performance year 2024, reported through an alternative payment model (APM). Keri Schaefer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Keri Schaefer's MIPS scores, performance year 2024

  • 96of 100Final score
  • 88.5of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

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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Keri A. Schaefer received $8 in industry payments in 2025

CMS Open Payments shows 1 general payment to Keri Schaefer from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Intuitive Surgical, Inc. paid the most, $8.

Companies that paid Keri Schaefer the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to Keri Schaefer

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Keri A. Schaefer's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Keri A. Schaefer

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Keri A. Schaefer's NPI number?

Keri A. Schaefer's NPI number is 1780053983. It was assigned on September 17, 2015, and it is active in the NPI Registry.

What does Keri A. Schaefer specialize in?

Keri A. Schaefer is a physician assistant in Winfield, Illinois. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Keri A. Schaefer practice?

Keri Schaefer practices at 25 North Winfield Road, Winfield, IL 60190. Keri Schaefer's primary practice is Northwestern Medicine Central DuPage Hospital in Winfield, Illinois, part of Northwestern Memorial HealthCare. Dmand AI also links Keri Schaefer to 2 medical groups, 1 breast imaging center, 1 clinical lab and 1 group practice or clinic.

What is Keri A. Schaefer's office phone number?

The practice phone on file for Keri Schaefer is (630) 682-1600.

What is Keri A. Schaefer's medical license number?

Keri Schaefer holds Illinois license 085.005617.

Which hospitals is Keri A. Schaefer affiliated with?

Keri Schaefer practices at Northwestern Medicine Central DuPage Hospital in Winfield, Illinois. Keri Schaefer is also affiliated with Northwestern Medicine Delnor Hospital.

What medical group is Keri A. Schaefer part of?

Keri Schaefer is linked to Northwestern Medicine Regional Medical Group. Dmand AI links Keri Schaefer to 2 more medical groups.

Does Keri A. Schaefer accept Medicare?

Yes. CMS lists Keri Schaefer as accepting Medicare assignment.

What is Keri A. Schaefer's MIPS score?

Keri Schaefer's MIPS final score for performance year 2024 is 96 out of 100, reported through an alternative payment model (APM).

How many Medicare patients does Keri A. Schaefer see?

CMS counts 62 Medicare patients who saw Keri Schaefer in 2024, with an average age of 74.

Has Keri A. Schaefer received payments from drug or device companies?

CMS Open Payments shows $8 in general payments to Keri Schaefer from 1 company from 2025 to 2025. The largest total came from Intuitive Surgical, Inc.

How long has Keri A. Schaefer been practicing?

Keri Schaefer graduated from medical school in 2015, 11 years ago.

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