Internal Medicine, Allergy & Immunology · North Haven, CT
NPI
1205894607
Since 2006
Specialty
Internal Medicine, Allergy & Immunology
Code 207RA0201X
Group practices
1
Medicare group memberships
Hospitals
2
Hospital affiliations
6 Devine St Ste 2b
North Haven, CT, 06473
Phone (203) 287-6200
Groups this clinician bills Medicare through
Medicare paid, 2024
$4,644
114 services
Medicare patients, 2024
36
Average age 69
Drug cost, 2024
$3.1M
234 prescriptions
Company payments, 2025
$19K
From 3 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Florence I Hsu was code 99213 (office e&m - established), 21 times for 18 patients. In total Florence I Hsu billed 114 services in 9 codes, and Medicare paid $4,644.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2020-06-15.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99213 Office E&M - Established | Office | 21 | 18 | $58.08 | $1,220 |
By year: 2022 $5,040 for 135 services; 2023 $4,560 for 136 services; 2024 $4,644 for 114 services.
Medicare prescription drug claims, 2024
In 2024, the drug Florence I Hsu prescribed most often to Medicare patients was Oxycodone Hcl, with 61 prescriptions and refills. In total Florence I Hsu wrote 234 Medicare prescriptions that cost $3.1M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Oxycodone Hcl Generic | 61 | 61 | Under 11 | $452 |
| Berinert C1 Esterase Inhibitor | 48 | 48 | Under 11 | $2.3M |
| Haegarda C1 Esterase Inhibitor | 22 | 22 | Under 11 | $634K |
| Hydroxyzine Hcl Generic | 16 | 16 | Under 11 | $128 |
| Privigen Immun Glob G(Igg)/Pro/Iga 0-50 | 15 | 15 | Under 11 | $61K |
Brand drugs: 115 claims; generic drugs: 119 claims; opioid claims: 62.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Florence I Hsu $19K ($19K in general payments such as food, travel and fees) from 3 companies. The largest payer was CSL Behring with $14K.
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.