Katherine K. Katsoyannis, M.D.
Specialist · Park Ridge, IL
Katherine K. Katsoyannis, M.D. is a specialist with a practice address in Park Ridge, Illinois, and NPI 1023123015, issued on Aug 20, 2006. Check the license (Illinois 036096130, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine K. Katsoyannis
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- 036096130 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1600 Dempster St, Park Ridge, IL 60068
- Phone
- (847) 299-7888
- Enumerated
- Aug 20, 2006
- Record last updated
- Dec 18, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (847) 299-7844
- Medicaid ID
- 036096130 IL
- Medicare enrollment
- Enrolled (PECOS I20040510000636); accepts Medicare assignment
- Medical or professional school
- Icahn School Of Medicine At Mount Sinai, 1987
- Entity
- Type 1 · individual
8 nearest specialist records → All 1,154 in Illinois → Look up another NPI →
Also registered at 1600 Dempster St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Katherine K. Katsoyannis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 036096130Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35.2 times the Medicare Part D claims of the average specialist in 2024
48,629 Medicare Part D claims for 1,278 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 481 claims were for opioids.
Most prescribed
- Atorvastatin Calcium2,830 claims
- Levothyroxine Sodium1,782 claims
- Amlodipine Besylate1,710 claims
- Eliquis1,692 claims
- Donepezil Hcl1,240 claims
- Furosemide1,228 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $272.66
8 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Geri Care LtdPark Ridge, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine K. Katsoyannis among 1,154 specialist records in Illinois
Katherine K. Katsoyannis, M.D. is one of 1,154 specialist records with a practice address in Illinois. 19% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 58% newer
- In a Medicare fileYes · 19% of these records are
- In the CMS Doctors and Clinicians fileYes · 11% of these records are
- Graduated1987 · median 1988 among the 127 with a school on file
- Record last updated2021 · 84% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in Illinois
There are 1,154 specialist records in Illinois.
All 1,154 in Illinois → Every provider in Park Ridge → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Steven Abern, M.D.Park Ridge, IL 600681922027424
- Jeanne De Lisle, PTPark Ridge, IL 600681205076874
- Therese Hanigan, APN,CNPPark Ridge, IL 600681942228978
- Slawomir Marecik, MDPark Ridge, IL 600681538245964
- John McKenzie, M.D.Park Ridge, IL 600681003853748
- Michael Pins, M.D.Park Ridge, IL 600681639155328
- David Ronin, M.D.Park Ridge, IL 600681588640924
- Wayne Rubinstein, M.D.Park Ridge, IL 600681427036011
Common questions
What is Katherine K. Katsoyannis, M.D.'s NPI number?
Katherine K. Katsoyannis, M.D.'s National Provider Identifier (NPI) is 1023123015, issued on Aug 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Katherine K. Katsoyannis, M.D. located?
The NPPES record lists a practice address at 1600 Dempster St, Park Ridge, IL, 60068. Phone: (847) 299-7888. Providers update this record themselves, so call before visiting.
How can I verify Katherine K. Katsoyannis, M.D.'s license?
NPPES lists Illinois license number 036096130, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine K. Katsoyannis, M.D. prescribe under Medicare Part D?
In 2024, Katherine K. Katsoyannis, M.D. had 48,629 Medicare Part D claims for 1,278 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.