Lena A. Kramer, PA-C

  • Oak Brook, IL
  • Physician assistant
NPI1942714183PAC ID0143580845
Medicare patients, 2024
415
Part D claims, 2024
332
Industry payments
$336
Affiliated sites
1
Medical group
1
Practice address
903 Commerce Dr, Oak Brook, IL 60523
Practice phone
Call (847) 675-9711
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

Illinois Dermatology Institute

Oak Brook, Illinois

See all 3 affiliations

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Lena A. Kramer is a physician assistant in Oak Brook, Illinois

Lena Kramer practices at Illinois Dermatology Institute in Oak Brook, Illinois.

Lena Kramer's NPI, 1942714183, was assigned on November 27, 2017.

NPI and contact details
Medicare PAC ID
0143580845
NPI enumeration date
November 27, 2017
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(847) 675-9711
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
35
Medical school graduation
2017

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

Lena A. Kramer practices at Illinois Dermatology Institute in Oak Brook, Illinois

Lena Kramer's primary practice is Illinois Dermatology Institute, at 903 Commerce Dr, Oak Brook, IL 60523 in Dupage County. The practice phone is (847) 675-9711.

  • Illinois Dermatology Institute
    903 Commerce Dr, Oak Brook, IL 60523 · Dupage CountyPhone(847) 675-9711

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Lena A. Kramer is affiliated with 2 sites of care and 1 medical group

Lena Kramer's primary practice is Illinois Dermatology Institute in Oak Brook, Illinois. The medical group on file is Illinois Dermatology Institute. Dmand AI also links Lena Kramer to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for Lena Kramer

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Lena A. Kramer's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Lena Kramer practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Illinois Dermatology InstituteAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Lena A. Kramer is one of 4,299 physician assistants in Illinois

Physician assistant is Lena Kramer's primary specialty in the NPI Registry, under taxonomy code 363A00000X.

Specialties and state licenses

  • Physician assistantPrimarytaxonomy 363A00000X

Physician assistants near Lena Kramer

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

Lena A. Kramer treated 415 Medicare patients in 2024, average age 75

CMS counts 415 Medicare patients who saw Lena Kramer in 2024. The largest group is 65 to 74, with 207 patients. 72% of them have high cholesterol, and 54% have high blood pressure. Their average risk score is 0.87, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Lena Kramer's median patient age at 40, with 65% women.

Medicare patients, 2024415
Average age75
Average risk score0.87

Lena Kramer's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Lena Kramer's Medicare patients by sex, 2024

  • Women32077%
  • Men9523%

Chronic conditions among Lena Kramer's Medicare patients, 2024

  1. High cholesterol72%
  2. High blood pressure54%
  3. Arthritis48%
  4. Osteoporosis23%
  5. Cancer19%
  6. Anxiety17%
  7. Mood disorders16%
  8. Ischemic heart disease15%

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

Lena Kramer's patients across all payers

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

Patient panel by age, all payers

Median age 40

Patient panel by sex, all payers

  • Women65%
  • Men35%

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

Lena A. Kramer wrote 332 Medicare Part D claims in 2024

In 2024, Lena Kramer wrote 332 Medicare Part D claims for 165 patients. 97% of them were for generic drugs.

Part D claims, 2024332
Part D patients165

Lena Kramer's Part D claims by kind of drug, 2024

  • Generic322 claims97%
  • Brand-name and other10 claims3%

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

How Lena A. Kramer takes part in Medicare

Lena Kramer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Lena A. Kramer received $336 in industry payments in 2025

CMS Open Payments shows 19 general payments to Lena Kramer from 6 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $114.

Companies that paid Lena Kramer the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to Lena Kramer

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

Sources for Lena A. Kramer'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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)
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 Lena A. Kramer

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

What is Lena A. Kramer's NPI number?

Lena A. Kramer's NPI number is 1942714183. It was assigned on November 27, 2017, and it is active in the NPI Registry.

What does Lena A. Kramer specialize in?

Lena A. Kramer is a physician assistant in Oak Brook, Illinois. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Lena A. Kramer practice?

Lena Kramer practices at 903 Commerce Dr, Oak Brook, IL 60523. Lena Kramer's primary practice is Illinois Dermatology Institute in Oak Brook, Illinois. Dmand AI also links Lena Kramer to 1 group practice or clinic.

What is Lena A. Kramer's office phone number?

The practice phone on file for Lena Kramer is (847) 675-9711.

What medical group is Lena A. Kramer part of?

Lena Kramer is linked to Illinois Dermatology Institute.

Does Lena A. Kramer accept Medicare?

Yes. CMS lists Lena Kramer as accepting Medicare assignment.

How many Medicare patients does Lena A. Kramer see?

CMS counts 415 Medicare patients who saw Lena Kramer in 2024, with an average age of 75.

Has Lena A. Kramer received payments from drug or device companies?

CMS Open Payments shows $336 in general payments to Lena Kramer from 6 companies from 2025 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.

How long has Lena A. Kramer been practicing?

Lena Kramer graduated from medical school in 2017, 9 years ago.

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