Internal Medicine, Endocrinology, Diabetes, & Metabolism · Arlington Heights, IL
NPI
1104975176
Since 2007
Specialty
Internal Medicine, Endocrinology, Diabetes, & Metabolism
Code 207RE0101X
Group practices
1
Medicare group memberships
Hospitals
5
Hospital affiliations
2101 S Arlington Heights Rd, 111
Arlington Heights, IL, 60005
Phone (847) 228-3200
Groups this clinician bills Medicare through
Medicare paid, 2024
$147K
1,969 services
Medicare patients, 2024
490
Average age 74
Drug cost, 2024
$1.6M
3,294 prescriptions
Company payments, 2025
$6,972
From 37 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Mario H Chan was code 99214 (office e&m - established), 639 times for 324 patients. In total Mario H Chan billed 1,969 services in 24 codes, and Medicare paid $147K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2012-06-11.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99214 Office E&M - Established | Office | 639 | 324 | $99.28 | $63K |
| G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's | Office | 281 | 232 | $13.08 | $3,676 |
| 99232 Hospital E&M - Subsequent | Facility | 229 | 50 | $64.76 | $15K |
| 99215 Office E&M - Established | Office | 189 | 183 | $144.32 | $27K |
| 95251 Test - Miscellaneous | Office | 181 | 73 | $27.22 | $4,927 |
| G0407 Follow-up inpatient consultation, intermediate, physicians typically spend 25 minutes communicating with the patient via telehealth | Office | 126 | 22 | $59.39 | $7,484 |
| G0407 Follow-up inpatient consultation, intermediate, physicians typically spend 25 minutes communicating with the patient via telehealth | Facility | 108 | 24 | $59.60 | $6,437 |
| 99213 Office E&M - Established | Office | 69 | 61 | $66.47 | $4,586 |
| 76536 Ultrasound - Nonspecific | Office | 60 | 58 | $78.21 | $4,692 |
| 99204 Office E&M - New | Office | 19 | 19 | $138.57 | $2,633 |
| 10005 Other Organ Systems | Office | 13 | 11 | $99.13 | $1,289 |
By year: 2022 $121K for 1,495 services; 2023 $125K for 1,589 services; 2024 $147K for 1,969 services.
Medicare prescription drug claims, 2024
In 2024, the drug Mario H Chan prescribed most often to Medicare patients was Levothyroxine Sodium, with 503 prescriptions and refills. In total Mario H Chan wrote 3,294 Medicare prescriptions that cost $1.6M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Levothyroxine Sodium Generic | 503 | 1,460 | 152 | $6,316 |
| Metformin Hcl Generic | 200 | 566 | 59 | $1,756 |
| Atorvastatin Calcium Generic | 167 | 496 | 55 | $1,551 |
| Ozempic Semaglutide | 118 | 208 | 30 | $188K |
| Jardiance Empagliflozin | 113 | 293 | 33 | $166K |
| Nano 2nd Gen Pen Needle Pen Needle, Diabetic | 106 | 302 | 42 | $16K |
| Rosuvastatin Calcium Generic | 105 | 298 | 38 | $1,318 |
| Pioglitazone Hcl Generic | 88 | 264 | 24 | $1,432 |
| Ezetimibe Generic | 73 | 215 | 22 | $2,770 |
| Novolog Flexpen Insulin Aspart | 70 | 164 | 26 | $20K |
| Glipizide Generic | 64 | 180 | 22 | $1,148 |
| Farxiga Dapagliflozin Propanediol | 61 | 163 | 18 | $90K |
| Synthroid Levothyroxine Sodium | 58 | 171 | 19 | $4,858 |
| Mounjaro Tirzepatide | 57 | 82 | 18 | $89K |
| Lantus Solostar Insulin Glargine,hum.Rec.Anlog | 54 | 153 | 20 | $14K |
Brand drugs: 1,437 claims; generic drugs: 1,605 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Mario H Chan $6,972 ($6,972 in general payments such as food, travel and fees) from 37 companies. The largest payer was Corcept Therapeutics with $914.
| Company | Payments | Amount |
|---|---|---|
| Corcept Therapeutics CORT | 20 | $914 |
| Lilly USA, LLC LLY | 27 | $823 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 8 | $528 |
| Neurocrine BioSciences, Inc. NBIX | 12 | $496 |
| Dexcom, Inc. DXCM | 10 | $487 |
| Novo Nordisk Inc NVO | 10 | $363 |
| Amgen Inc. AMGN | 18 | $325 |
| Ascensia Diabetes Care Us Inc. | 10 | $308 |
| Recordati_rare_diseases_inc. | 7 | $267 |
| Alexion Pharmaceuticals, Inc. AZN | 9 | $262 |
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.