Internal Medicine · Riverwoods, IL
NPI
1326094194
Since 2006
Specialty
Internal Medicine
Code 207R00000X
Group practices
1
Medicare group memberships
Hospitals
3
Hospital affiliations
1105 Milwaukee Ave
Riverwoods, IL, 60015
Phone (847) 325-5110
Groups this clinician bills Medicare through
Medicare paid, 2024
$187K
2,920 services
Medicare patients, 2024
403
Average age 75
Drug cost, 2024
$3.0M
54,342 prescriptions
Company payments, 2025
$160
From 3 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Tom Klein was code 99424 (chronic, principal, and transitional care management), 1,660 times for 257 patients. In total Tom Klein billed 2,920 services in 33 codes, and Medicare paid $187K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2024-12-03.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99424 Chronic, Principal, and Transitional Care Management | Facility | 1,660 | 257 | $54.94 | $91K |
| 99349 Home E&M - New and Established | Office | 271 | 139 | $88.94 | $24K |
| 99309 SNF E&M | Facility | 174 | 72 | $75.69 | $13K |
| 99214 Office E&M - Established | Office | 131 | 35 | $78.04 | $10K |
| 99233 Hospital E&M - Subsequent | Facility | 113 | 35 | $88.69 | $10K |
| 99424 Chronic, Principal, and Transitional Care Management | Office | 60 | 18 | $61.66 | $3,700 |
| G0179 Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a | Office | 52 | 33 | $28.24 | $1,468 |
| G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and | Office | 48 | 46 | $37.18 | $1,785 |
| 99232 Hospital E&M - Subsequent | Facility | 43 | 30 | $58.90 | $2,533 |
| 99496 Chronic, Principal, and Transitional Care Management | Facility | 38 | 37 | $137.46 | $5,224 |
| 99315 SNF E&M | Facility | 36 | 36 | $57.40 | $2,066 |
| 99305 SNF E&M | Facility | 26 | 26 | $91.68 | $2,384 |
| G0181 Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allow | Office | 23 | 18 | $74.25 | $1,708 |
| 99212 Office E&M - Established | Office | 20 | 16 | $26.69 | $534 |
| 99442 Telephone Services | Office | 19 | 19 | $33.72 | $641 |
By year: 2022 $235K for 2,754 services; 2023 $150K for 2,164 services; 2024 $187K for 2,920 services.
Medicare prescription drug claims, 2024
In 2024, the drug Tom Klein prescribed most often to Medicare patients was Atorvastatin Calcium, with 3,081 prescriptions and refills. In total Tom Klein wrote 54,342 Medicare prescriptions that cost $3.0M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Atorvastatin Calcium Generic | 3,081 | 3,224 | 295 | $32K |
| Amlodipine Besylate Generic | 2,008 | 2,083 | 192 | $15K |
| Levothyroxine Sodium Generic | 2,004 | 2,097 | 165 | $18K |
| Metformin Hcl Generic | 1,647 | 1,679 | 129 | $11K |
| Lisinopril Generic | 1,422 | 1,533 | 136 | $9,780 |
| Metoprolol Tartrate Generic | 1,360 | 1,469 | 124 | $9,054 |
| Gabapentin Generic | 1,359 | 1,412 | 147 | $22K |
| Omeprazole Generic | 1,278 | 1,337 | 134 | $11K |
| Tamsulosin Hcl Generic | 1,198 | 1,239 | 107 | $14K |
| Furosemide Generic | 1,193 | 1,270 | 143 | $7,034 |
| Trazodone Hcl Generic | 1,129 | 1,145 | 123 | $11K |
| Eliquis Apixaban | 1,006 | 1,021 | 79 | $288K |
| Potassium Chloride Generic | 972 | 1,050 | 99 | $15K |
| Pantoprazole Sodium Generic | 954 | 1,014 | 112 | $11K |
| Simvastatin Generic | 897 | 975 | 63 | $6,073 |
Brand drugs: 5,927 claims; generic drugs: 48,066 claims; opioid claims: 365.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Tom Klein $160 ($160 in general payments such as food, travel and fees) from 3 companies. The largest payer was Teva Pharmaceuticals USA, Inc. with $111.
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.