Internal Medicine, Infectious Disease · Torrance, CA
NPI
1801876412
Since 2006
Specialty
Internal Medicine, Infectious Disease
Code 207RI0200X
Group practices
1
Medicare group memberships
Hospitals
1
Hospital affiliations
23430 Hawthorne Blvd Ste 200
Torrance, CA, 90505
Phone (310) 784-5880
Groups this clinician bills Medicare through
Medicare paid, 2024
$58K
605 services
Medicare patients, 2024
207
Average age 68
Drug cost, 2024
$224K
1,725 prescriptions
Company payments, 2025
$19.78
From 1 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by John K Chia was code 99215 (office e&m - established), 227 times for 129 patients. In total John K Chia billed 605 services in 19 codes, and Medicare paid $58K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2018-04-11.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99215 Office E&M - Established | Office | 227 | 129 | $128.96 | $29K |
| 99214 Office E&M - Established | Office | 187 | 110 | $96.83 | $18K |
| 36415 Venipuncture Blood Collection | Office | 44 | 37 | $8.46 | $372 |
| 99232 Hospital E&M - Subsequent | Facility | 40 | 12 | $64.68 | $2,587 |
| G2212 Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | Office | 36 | 17 | $27.03 | $973 |
| 99205 Office E&M - New | Office | 19 | 19 | $183.94 | $3,495 |
By year: 2022 $105K for 1,185 services; 2023 $91K for 1,014 services; 2024 $58K for 605 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 36415 Venipuncture Blood Collection | 44 | 37 | $8.46 | $372 |
Medicare prescription drug claims, 2024
In 2024, the drug John K Chia prescribed most often to Medicare patients was Fluvoxamine Maleate, with 113 prescriptions and refills. In total John K Chia wrote 1,725 Medicare prescriptions that cost $224K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Fluvoxamine Maleate Generic | 113 | 188 | 34 | $6,679 |
| Acyclovir Generic | 109 | 171 | 31 | $3,957 |
| Paxlovid Nirmatrelvir/Ritonavir | 99 | 99 | 75 | $2,797 |
| Aripiprazole Generic | 55 | 80 | 12 | $1,473 |
| Lamivudine Generic | 54 | 106 | 13 | $11K |
| Valacyclovir Valacyclovir Hcl | 51 | 129 | 20 | $3,567 |
| Gabapentin Generic | 46 | 62 | Under 11 | $821 |
| Famotidine Generic | 44 | 124 | 14 | $704 |
| Tramadol Hcl Generic | 38 | 38 | Under 11 | $361 |
| Oseltamivir Phosphate Generic | 38 | 38 | 14 | $822 |
| Isentress Raltegravir Potassium | 33 | 42 | Under 11 | $86K |
| Baclofen Generic | 29 | 43 | Under 11 | $335 |
| Trazodone Hcl Generic | 29 | 51 | Under 11 | $169 |
| Duloxetine Hcl Generic | 28 | 34 | Under 11 | $276 |
| Clonazepam Generic | 27 | 27 | Under 11 | $86.49 |
Brand drugs: 228 claims; generic drugs: 1,481 claims; opioid claims: 82.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid John K Chia $19.78 ($19.78 in general payments such as food, travel and fees) from 1 company. The largest payer was Shionogi Inc with $19.78.
| Company | Payments | Amount |
|---|---|---|
| Shionogi Inc 4507.T | 1 | $19.78 |
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.