Doctor profile · Federal record
Dr. Kathryn Mazza, D.O.
Internal Medicine Physician · Family Medicine Physician · Guilford, CT
- NPI 1497196471
- 13 yrs on file
- Licensed in 2 states
- Female
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1591 Boston Post RD Ste 100
Guilford, CT 064374335
(203) 453-9911
fax (203) 458-1905 - Additional location
-
1067 Ogden Ave
Bronx, NY 104524601
(718) 992-7669 - Mailing address
-
55 Water St, Fl 12
New York, NY 100410004
Credentials & registration
- NPI registered
- July 2013 — 13 yrs on file
- Profile last updated
- August 19, 2025
- Specialty taxonomy
- 207R00000X — NUCC code
- State licenses (2)
- Connecticut #079272 · New York #289426
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1497196471. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
47
Distinct HCPCS
2
Medicare allowed
$5,031
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 36 | 33 | $98 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 11 | 11 | $138 |
In context: peer comparison
Among 6 peers in Guilford Internal Medicine Physician, average services per provider: 80. This provider delivers 0.6× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
328
Patients
79
Total drug cost
$28,222
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 49 | 25 | $837 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 45 | 16 | $1,049 |
| Amlodipine Besylate | Generic | 45 | 22 | $290 |
| Lisinopril | Generic | 23 | 16 | $232 |
| Levothyroxine Sodium | Generic | 19 | 0 | $274 |
| Metformin Hcl | Generic | 19 | 0 | $233 |
| Lisinopril-Hydrochlorothiazide (Lisinopril/Hydrochlorothiazide) | Brand | 18 | 0 | $144 |
| Metoprolol Succinate | Generic | 18 | 0 | $342 |
| Simvastatin | Generic | 16 | 0 | $94 |
| Escitalopram Oxalate | Generic | 14 | 0 | $312 |
Frequently asked questions
What is Dr. Kathryn Mazza's medical specialty?
Dr. Kathryn Mazza practices Internal Medicine Physician in Guilford, CT.
Where does Dr. Kathryn Mazza practice?
Dr. Kathryn Mazza practices at 1591 Boston Post RD Ste 100, Guilford, CT 064374335. Office phone: 2034539911.
What is Dr. Kathryn Mazza's NPI?
Dr. Kathryn Mazza's National Provider Identifier (NPI) is 1497196471, issued by NPPES.
What procedures does Dr. Kathryn Mazza commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.