Internal Medicine · Alhambra, CA
NPI
1508826488
Since 2006
Specialty
Internal Medicine
Code 207R00000X
Group practices
2
Medicare group memberships
Hospitals
0
Hospital affiliations
1234 South Garfield Avenue, Suite 103
Alhambra, CA, 91801
Phone (626) 576-7871
Groups this clinician bills Medicare through
Medicare paid, 2024
$461K
8,583 services
Medicare patients, 2024
470
Average age 75
Drug cost, 2024
$3.1M
26,021 prescriptions
Company payments, 2025
$370
From 5 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Robert W Chan was code 99490 (chronic, principal, and transitional care management), 2,663 times for 326 patients. In total Robert W Chan billed 8,583 services in 49 codes, and Medicare paid $461K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2026-07-13.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99490 Chronic, Principal, and Transitional Care Management | Office | 2,663 | 326 | $51.14 | $136K |
| 99213 Office E&M - Established | Office | 2,093 | 376 | $74.89 | $157K |
| G2012 Brief communication technology-based service, e.g. virtual check-in, by a physician or other qualified health care professional who can report evaluation and management services, provided to an established patient, not originating from a related e/m servic | Office | 1,026 | 191 | $11.10 | $11K |
| 99442 Telephone Services | Office | 1,013 | 190 | $74.59 | $76K |
| 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 | 465 | 145 | $13.56 | $6,307 |
| 99443 Telephone Services | Office | 323 | 95 | $88.73 | $29K |
| 36410 Vascular | Office | 125 | 80 | $14.60 | $1,825 |
| 99497 Care Management/Coordination | Office | 103 | 102 | $84.63 | $8,717 |
| G0442 Annual alcohol misuse screening, 5 to 15 minutes | Office | 99 | 99 | $21.08 | $2,087 |
| G0446 Annual, face-to-face intensive behavioral therapy for cardiovascular disease, individual, 15 minutes | Office | 94 | 94 | $26.79 | $2,518 |
| G0444 Annual depression screening, 5 to 15 minutes | Office | 91 | 91 | $21.08 | $1,918 |
| G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Office | 88 | 88 | $139.23 | $12K |
| 82962 Clinical Chemistry | Office | 45 | 31 | $3.21 | $144 |
| G0008 Administration of influenza virus vaccine | Office | 32 | 32 | $35.02 | $1,121 |
| 83036 Blood Count | Office | 31 | 27 | $9.52 | $295 |
By year: 2022 $565K for 10,257 services; 2023 $657K for 11,918 services; 2024 $461K for 8,583 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 82962 Clinical Chemistry | 45 | 31 | $3.21 | $144 |
| 83036 Blood Count | 31 | 27 | $9.52 | $295 |
| 36415 Venipuncture Blood Collection | 23 | 18 | $8.65 | $199 |
| 81002 Clinical Chemistry | 20 | 20 | $3.41 | $68.2 |
Medicare prescription drug claims, 2024
In 2024, the drug Robert W Chan prescribed most often to Medicare patients was Atorvastatin Calcium, with 2,046 prescriptions and refills. In total Robert W Chan wrote 26,021 Medicare prescriptions that cost $3.1M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Atorvastatin Calcium Generic | 2,046 | 3,369 | 415 | $14K |
| Losartan Potassium Generic | 1,275 | 2,132 | 249 | $8,990 |
| Amlodipine Besylate Generic | 1,271 | 2,178 | 276 | $5,800 |
| Rosuvastatin Calcium Generic | 884 | 1,368 | 159 | $7,583 |
| Farxiga Dapagliflozin Propanediol | 863 | 1,014 | 147 | $553K |
| Metoprolol Succinate Generic | 827 | 1,271 | 147 | $8,489 |
| Metformin Hcl Generic | 743 | 1,199 | 149 | $4,747 |
| Alendronate Sodium Generic | 714 | 1,118 | 126 | $5,058 |
| Montelukast Sodium Generic | 698 | 845 | 158 | $4,259 |
| Icosapent Ethyl Generic | 656 | 895 | 128 | $115K |
| Nifedipine Er Nifedipine | 654 | 928 | 98 | $13K |
| Vascepa Icosapent Ethyl | 645 | 746 | 96 | $197K |
| Allopurinol Generic | 577 | 833 | 102 | $3,589 |
| Tamsulosin Hcl Generic | 515 | 784 | 99 | $5,023 |
| Omeprazole Generic | 515 | 723 | 129 | $3,307 |
Brand drugs: 4,485 claims; generic drugs: 21,230 claims; opioid claims: 30.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Robert W Chan $370 ($370 in general payments such as food, travel and fees) from 5 companies. The largest payer was Novo Nordisk Inc with $245.
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.