Doctor profile · Federal record
Dr. Ken Matsuo, MD
Internal Medicine Physician (CMS: Hospitalist) · Student in an Organized Health Care Education/Training Program · Hospitalist Physician · Waterbury, CT
- NPI 1053600429
- Accepts Medicare
- 15 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
56 Franklin St
Waterbury, CT 067061253
(203) 709-8820
fax (203) 709-3679 - Mailing address
-
Po Box 1090
Windsor, CT 060956190
Credentials & registration
- NPI registered
- April 2011 — 15 yrs on file
- Profile last updated
- August 18, 2014
- Year of graduation
- 2011 — 15 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Connecticut #53316
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1053600429. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
265
Distinct HCPCS
6
Medicare allowed
$34,905
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 87 | 58 | $123 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 77 | 73 | $180 | |
99239 |
Hospital discharge day management, more than 30 minutes | 41 | 41 | $119 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 30 | 15 | $82 | |
G0316 |
Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th | 19 | 15 | $32 | |
99291 |
Critical care, first 30-74 minutes | 11 | 11 | $214 |
In context: peer comparison
Among 34 peers in Waterbury Internal Medicine Physician, average services per provider: 87. This provider delivers 3.0× the peer median.Open Payments
Industry payments received
All-time total
$191
Transactions
9
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Pharmaceuticals, INC | 3 | $54.54 | |
| Novartis Pharmaceuticals Corporation | 2 | $48.85 | |
| Pfizer INC. | 2 | $47.31 | |
| E.R. Squibb & Sons, L.L.C. | 1 | $21.00 | |
| Mylan Specialty L.P. | 1 | $18.81 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
25
Patients
11
Total drug cost
$1,174
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levetiracetam | Generic | 14 | 0 | $846 |
| Cefpodoxime Proxetil | Generic | 11 | 11 | $328 |
Hospital affiliations
Frequently asked questions
What is Dr. Ken Matsuo's medical specialty?
Dr. Ken Matsuo practices Internal Medicine Physician in Waterbury, CT.
Where does Dr. Ken Matsuo practice?
Dr. Ken Matsuo practices at 56 Franklin St, Waterbury, CT 067061253. Office phone: 2037098820.
What is Dr. Ken Matsuo's NPI?
Dr. Ken Matsuo's National Provider Identifier (NPI) is 1053600429, issued by NPPES.
Does Dr. Ken Matsuo accept Medicare assignment?
Yes. Dr. Ken Matsuo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ken Matsuo commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.