Doctor profile · Federal record
Dr. Gregory Morrissey, DO
Internal Medicine Physician (CMS: Internal Medicine) · Hampton, NH
- NPI 1124012158
- Accepts Medicare
- 29 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
55 High St, Suite 201
Hampton, NH 038422213
(603) 929-2137
fax (603) 929-7482
Credentials & registration
- NPI registered
- September 2005 — 21 yrs on file
- Profile last updated
- January 28, 2022
- Year of graduation
- 1997 — 29 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- New Hampshire #11003
- Medicaid
- NH #3089177
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1124012158. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,915
Distinct HCPCS
10
Medicare allowed
$139,531
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 596 | 424 | $81 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 565 | 460 | $83 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 375 | 375 | $47 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 63 | 61 | $14 | |
99211 |
Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional | 63 | 53 | $45 | |
G0008 |
Administration of influenza virus vaccine | 46 | 46 | $31 | |
90694 |
Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | 43 | 43 | $74 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 29 | 29 | $111 | |
81003 |
Automated urinalysis test | 25 | 25 | $2 | |
G0009 |
Administration of pneumococcal vaccine | 21 | 21 | $31 |
In context: peer comparison
Among 4 peers in Hampton Internal Medicine Physician, average services per provider: 79. This provider delivers 24× the peer median.Open Payments
Industry payments received
All-time total
$15
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| GlaxoSmithKline, LLC. | 1 | $14.89 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,240
Patients
671
Total drug cost
$126,070
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 320 | 116 | $4,716 |
| Amlodipine Besylate | Generic | 244 | 79 | $1,970 |
| Lisinopril | Generic | 209 | 68 | $2,110 |
| Lorazepam | Generic | 185 | 41 | $1,178 |
| Rosuvastatin Calcium | Generic | 159 | 50 | $4,341 |
| Losartan Potassium | Generic | 155 | 46 | $2,125 |
| Metoprolol Succinate | Generic | 153 | 45 | $3,497 |
| Levothyroxine Sodium | Generic | 152 | 38 | $1,933 |
| Simvastatin | Generic | 109 | 33 | $1,017 |
| Pantoprazole Sodium | Generic | 99 | 32 | $2,736 |
Hospital affiliations
Frequently asked questions
What is Dr. Gregory Morrissey's medical specialty?
Dr. Gregory Morrissey practices Internal Medicine Physician in Hampton, NH.
Where does Dr. Gregory Morrissey practice?
Dr. Gregory Morrissey practices at 55 High St, Hampton, NH 038422213. Office phone: 6039292137.
What is Dr. Gregory Morrissey's NPI?
Dr. Gregory Morrissey's National Provider Identifier (NPI) is 1124012158, issued by NPPES.
Does Dr. Gregory Morrissey accept Medicare assignment?
Yes. Dr. Gregory Morrissey accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Morrissey commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.