Dr. David Eugene Klein, DO
- Medicare patients, 2026
- 45
- Part D claims, 2026
- 178
- Hospital affiliations
- 3
- Industry payments
- $155
- Medical groups
- 2
- Practice address
- 4600 N Ravenswood Ave, Chicago, IL 60640
- Practice phone
- Call (847) 390-5900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Advocate Medical Group
Chicago, Illinois
Find Dr. Klein's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. David Eugene Klein is a neurologist in Chicago, Illinois
Dr. Klein practices at Advocate Medical Group in Chicago, Illinois.
Dr. Klein's NPI, 1003302159, was assigned on July 2, 2018. Dr. Klein holds Illinois license 036.159465.
- NPI
- 1003302159NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4082961321
- NPI enumeration date
- July 2, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (847) 390-5900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Eugene Klein practices at Advocate Medical Group in Chicago, Illinois
Dr. Klein's primary practice is Advocate Medical Group, at 4600 N Ravenswood Ave, Chicago, IL 60640 in Cook County. The practice phone is (847) 390-5900.
- Advocate Medical Group4600 N Ravenswood Ave, Chicago, IL 60640 · Cook CountyPhone(847) 390-5900
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David Eugene Klein is affiliated with 7 sites of care and 2 medical groups
Dr. Klein's primary practice is Advocate Medical Group in Chicago, Illinois. Dr. Klein is also affiliated with Advocate Illinois Masonic Medical Center. The medical group on file is Dreyer Medical Clinic (Advocate Medical Group). Dmand AI also links Dr. Klein to 2 more hospitals, 2 group practices and clinics, 1 home health agency and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. David Eugene Klein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Klein practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Advocate Medical Group | Available with a free account |
| +6 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David Eugene Klein is one of 822 neurologists in Illinois
Neurology is Dr. Klein's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dmand AI has Dr. Klein's licenses on file in 3 states: Illinois, Michigan and New York.
Specialties and state licenses
- Neurology, IllinoisPrimary
- Student in an organized health care education/training program, Michigan
- New York license
Neurologists near Dr. Klein
Counts of neurologists 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
Dr. David Eugene Klein treated 45 Medicare patients in 2026, average age 75
CMS counts 45 Medicare patients who saw Dr. Klein in 2026. The largest group is 75 to 84, with 26 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 36% are also on Medicaid. Their average risk score is 2.09, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Klein's median patient age at 68, with 65% women.
Dr. Klein's Medicare patients by age, 2026
CMS leaves out age groups with fewer than 11 patients.
Dr. Klein's Medicare patients by sex, 2026
- Women2351%
- Men2249%
Chronic conditions among Dr. Klein's Medicare patients, 2026
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Stroke or TIA51%
- Diabetes47%
- Mood disorders44%
- Alzheimer's and dementia42%
- Anxiety40%
Share of Medicare patients with each condition. A patient can have several.
Dr. Klein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women65%
- Men34%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data
Dr. David Eugene Klein wrote 178 Medicare Part D claims in 2026
In 2026, Dr. Klein wrote 178 Medicare Part D claims for 49 patients. 88% of them were for generic drugs. CMS names the drug for 65 of them, across 3 drugs with 11 or more claims each, at $7,003 in total drug cost. In 2023, CMS named 84 claims across 5 drugs.
Dr. Klein's Part D claims by kind of drug, 2026
- Generic157 claims88%
- Brand-name and other21 claims12%
Dr. Klein's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 842024: 6523%
Drugs named by CMS: 3 in 2024, 5 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2026 data
How Dr. David Eugene Klein takes part in Medicare
Dr. Klein 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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Dr. David Eugene Klein received $155 in industry payments from 2023 to 2025
CMS Open Payments shows 5 general payments to Dr. Klein from 2 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $97.
General payments to Dr. Klein by program year, 2023 to 2025
Companies that paid Dr. Klein the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. David Eugene Klein'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. David Eugene Klein
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. David Eugene Klein's NPI number?
Dr. David Eugene Klein's NPI number is 1003302159. It was assigned on July 2, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. David Eugene Klein?
Dr. David Eugene Klein is a neurologist in Chicago, Illinois. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. David Eugene Klein practice?
Dr. Klein practices at 4600 N Ravenswood Ave, Chicago, IL 60640. Dr. Klein's primary practice is Advocate Medical Group in Chicago, Illinois. Dmand AI also links Dr. Klein to 2 hospitals, 2 group practices and clinics, 1 home health agency and 1 medical group, and a free account names each one.
What is Dr. David Eugene Klein's office phone number?
The practice phone on file for Dr. Klein is (847) 390-5900. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. David Eugene Klein's email address?
Dmand AI checks professional and personal email addresses for Dr. Klein through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. David Eugene Klein's medical license number?
Dr. Klein holds Illinois license 036.159465, one of the licenses on file in 3 states.
Which states has Dr. David Eugene Klein been licensed in?
Dmand AI has state licenses on file for Dr. Klein in Illinois, Michigan and New York.
Which hospitals is Dr. David Eugene Klein affiliated with?
Dr. Klein is affiliated with Advocate Illinois Masonic Medical Center. Dmand AI links Dr. Klein to 2 more hospitals, named with a free account.
What medical group is Dr. David Eugene Klein part of?
Dr. Klein is linked to Dreyer Medical Clinic (Advocate Medical Group). Dmand AI links Dr. Klein to 1 more medical group, named with a free account.
Who does Dr. David Eugene Klein practice with?
Dmand AI links 3,812 HCPs to Dr. Klein's primary medical group, 52 of them neurologists. A free account lists them, with verified contacts.
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Does Dr. David Eugene Klein accept Medicare?
Yes. CMS lists Dr. Klein as accepting Medicare assignment.
How many Medicare patients does Dr. David Eugene Klein see?
CMS counts 45 Medicare patients who saw Dr. Klein in 2026, with an average age of 75.
What drugs does Dr. David Eugene Klein prescribe most?
In 2024 Medicare Part D data, Dr. Klein's most prescribed drugs by claims were Levetiracetam, Levetiracetam ER and Lacosamide.
Has Dr. David Eugene Klein received payments from drug or device companies?
CMS Open Payments shows $155 in general payments to Dr. Klein from 2 companies from 2023 to 2025. The largest total came from Abbvie Inc.
How long has Dr. David Eugene Klein been practicing?
Dr. Klein graduated from medical school in 2018, 8 years ago.
What EHR does Dr. David Eugene Klein's practice use?
Dmand AI tracks the EHR system at Advocate Medical Group and at 6 more sites and 1 medical group. The vendor and product are available with a free Dmand AI account.
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