Doctor profile · Federal record
Dr. Kerry Grennan, NP
Adult Health Nurse Practitioner (CMS: Nurse Practitioner) · East Boston, MA
- NPI 1326299017
- Accepts Medicare
- 18 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
10 Gove St
East Boston, MA 021281920
(617) 569-5800
fax (617) 568-4780
Credentials & registration
- NPI registered
- October 2008 — 18 yrs on file
- Year of graduation
- 2008 — 18 yrs since
- Specialty taxonomy
- 363LA2200X — NUCC code
- State license (1)
- Massachusetts #273942
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1326299017. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
692
Distinct HCPCS
3
Medicare allowed
$42,680
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 414 | 136 | $45 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 183 | 112 | $71 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 95 | 90 | $118 |
In context: peer comparison
Among 3 peers in this city , average services per provider: 134. This provider delivers 5.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
494
Patients
141
Total drug cost
$440,247
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Jardiance (Empagliflozin) | Brand | 74 | 26 | $110,164 |
| Ozempic (Semaglutide) | Brand | 62 | 22 | $112,367 |
| Trulicity (Dulaglutide) | Brand | 62 | 19 | $98,106 |
| Lantus Solostar (Insulin Glargine,hum.Rec.Anlog) | Brand | 47 | 19 | $38,776 |
| Metformin Hcl | Generic | 45 | 19 | $768 |
| Basaglar Kwikpen U-100 (Insulin Glargine,hum.Rec.Anlog) | Brand | 36 | 14 | $15,455 |
| Atorvastatin Calcium | Generic | 32 | 11 | $813 |
| Amlodipine Besylate | Generic | 22 | 0 | $196 |
| Humalog (Insulin Lispro) | Brand | 20 | 0 | $32,247 |
| Lantus (Insulin Glargine,hum.Rec.Anlog) | Brand | 17 | 0 | $5,880 |
Frequently asked questions
What is Dr. Kerry Grennan's medical specialty?
Dr. Kerry Grennan practices Adult Health Nurse Practitioner in East Boston, MA.
Where does Dr. Kerry Grennan practice?
Dr. Kerry Grennan practices at 10 Gove St, East Boston, MA 021281920. Office phone: 6175695800.
What is Dr. Kerry Grennan's NPI?
Dr. Kerry Grennan's National Provider Identifier (NPI) is 1326299017, issued by NPPES.
Does Dr. Kerry Grennan accept Medicare assignment?
Yes. Dr. Kerry Grennan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kerry Grennan commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.