Doctor profile · Federal record
Dr. Mary Kane-Brock, MD
Internal Medicine Physician (CMS: Endocrinology) · Specialist · Greenwich, CT
- NPI 1245312305
- Accepts Medicare
- MIPS 70.2 / 100 · 2023
- 39 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
75 Holly Hill Ln
Greenwich, CT 068306098
(203) 869-6960
fax (203) 869-5103
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- September 3, 2014
- Year of graduation
- 1987 — 39 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Connecticut #035005
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1245312305. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
656
Distinct HCPCS
4
Medicare allowed
$64,013
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 350 | 158 | $83 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 159 | 86 | $124 | |
99239 |
Hospital discharge day management, more than 30 minutes | 113 | 112 | $120 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 34 | 16 | $52 |
In context: peer comparison
Among 19 peers in Greenwich Internal Medicine Physician, average services per provider: 94. This provider delivers 7.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
95
Patients
13
Total drug cost
$8,223
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Losartan Potassium | Generic | 23 | 0 | $241 |
| Amlodipine Besylate | Generic | 17 | 0 | $67 |
| Metoprolol Succinate | Generic | 17 | 0 | $70 |
| Cefuroxime (Cefuroxime Axetil) | Brand | 14 | 13 | $216 |
| Duloxetine Hcl | Generic | 13 | 0 | $401 |
| Eliquis (Apixaban) | Brand | 11 | 0 | $7,228 |
Hospital affiliations
Frequently asked questions
What is Dr. Mary Kane-Brock's medical specialty?
Dr. Mary Kane-Brock practices Internal Medicine Physician in Greenwich, CT.
Where does Dr. Mary Kane-Brock practice?
Dr. Mary Kane-Brock practices at 75 Holly Hill Ln, Greenwich, CT 068306098. Office phone: 2038696960.
What is Dr. Mary Kane-Brock's NPI?
Dr. Mary Kane-Brock's National Provider Identifier (NPI) is 1245312305, issued by NPPES.
Does Dr. Mary Kane-Brock accept Medicare assignment?
Yes. Dr. Mary Kane-Brock accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Kane-Brock commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.