Tom Klein, MD
Internal Medicine Physician · Riverwoods, IL
Tom Klein, MD is an internal medicine physician with a practice address in Riverwoods, Illinois, and NPI 1326094194, issued on May 25, 2006. Check the license (Illinois 036065537, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Tom Klein
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 036065537 IL
4193020 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1105 Milwaukee Ave, Riverwoods, IL 60015
- Phone
- (847) 325-5110
- Enumerated
- May 25, 2006
- Record last updated
- Dec 3, 2024
- Fax
- (847) 325-5114
- Medicaid ID
- 036065537 IL
- Medicare enrollment
- Enrolled (PECOS I20071117000145); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 1105 Milwaukee Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sohail Dharani, APNNurse Practitioner1053950410
- Vishnu Madireddy, M.D.Internal Medicine Physician1811063761
Verify Tom Klein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036065537Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17.1 times the Medicare Part D claims of the average internal medicine physician in 2024
54,342 Medicare Part D claims for 1,064 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 365 claims were for opioids.
Most prescribed
- Atorvastatin Calcium3,081 claims
- Amlodipine Besylate2,008 claims
- Levothyroxine Sodium2,004 claims
- Metformin Hcl1,647 claims
- Lisinopril1,422 claims
- Metoprolol Tartrate1,360 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.
The MIPS final score for 2023 (Medicare payment program): 21 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Tamid Medical GroupRiverwoods, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
5 internal medicine physician records list a practice address in Riverwoods
They are 5 of the 74 NPPES records with a practice address in Riverwoods, and 7,238 internal medicine physician records in Illinois.
All 5 in Riverwoods → All 7,238 in Illinois → Every provider in Riverwoods →
Other internal medicine physician records in Illinois
- Peter Abadeer, D.O.Bloomington, IL1760469522
- Motaz Abas, MDPeoria, IL1215510201
- Elias Abate, M.D.Chicago, IL1336712199
- Maliha Abbas, D.O.Chicago, IL1174963920
- Zareena Abbas, MDChicago, IL1427078872
- Abu Abbasi, MDChicago, IL1083243877
- Ayesha Abbasi, MDChicago, IL1376216705
- Khalda Abbasi, MDNaperville, IL1487705240
- Elmer Abbo, MDBurr Ridge, IL1710048541
- Paul Abbo, M.D.River Forest, IL1083693378
Common questions
What is Tom Klein, MD's NPI number?
Tom Klein, MD's National Provider Identifier (NPI) is 1326094194, issued on May 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Tom Klein, MD located?
The NPPES record lists a practice address at 1105 Milwaukee Ave, Riverwoods, IL, 60015. Phone: (847) 325-5110. Providers update this record themselves, so call before visiting.
How can I verify Tom Klein, MD's license?
NPPES lists Illinois license number 036065537, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Tom Klein, MD prescribe under Medicare Part D?
In 2024, Tom Klein, MD had 54,342 Medicare Part D claims for 1,064 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Tom Klein, MD's MIPS final score?
The 2023 MIPS final score is 21 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.