Doctor profile · Federal record
Dr. Mackenzie Smith, MD
Internal Medicine Physician (CMS: Hospitalist) · Hospitalist Physician · Waterbury, CT
- NPI 1306867163
- Accepts Medicare
- MIPS 90.8 / 100 · 2023
- 23 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
64 Robbins St, Sixth Floor
Waterbury, CT 067082613
(203) 573-6263
fax (203) 573-6707 - Mailing address
-
1625 Straits Tpke
Middlebury, CT 067621836
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- September 11, 2025
- Year of graduation
- 2003 — 23 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Connecticut #044415
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1306867163. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
291
Distinct HCPCS
6
Medicare allowed
$30,964
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 96 | 76 | $83 | |
99239 |
Hospital discharge day management, more than 30 minutes | 72 | 70 | $119 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 58 | 42 | $124 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 28 | 24 | $50 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 19 | 19 | $136 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 18 | 18 | $181 |
In context: peer comparison
Among 34 peers in Waterbury Internal Medicine Physician, average services per provider: 87. This provider delivers 3.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
23
Patients
11
Total drug cost
$138
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 12 | 0 | $91 |
| Oxycodone Hcl | Generic | 11 | 11 | $47 |
Frequently asked questions
What is Dr. Mackenzie Smith's medical specialty?
Dr. Mackenzie Smith practices Internal Medicine Physician in Waterbury, CT.
Where does Dr. Mackenzie Smith practice?
Dr. Mackenzie Smith practices at 64 Robbins St, Waterbury, CT 067082613. Office phone: 2035736263.
What is Dr. Mackenzie Smith's NPI?
Dr. Mackenzie Smith's National Provider Identifier (NPI) is 1306867163, issued by NPPES.
Does Dr. Mackenzie Smith accept Medicare assignment?
Yes. Dr. Mackenzie Smith accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mackenzie Smith commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.