Doctor profile · Federal record
Dr. Herbert Brennan, DO
Internal Medicine Physician (CMS: Internal Medicine) · East Greenwich, RI
- NPI 1659489060
- 34 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2358 South County Trail
East Greenwich, RI 02818
(401) 886-6000
fax (401) 886-6002
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- September 10, 2008
- Year of graduation
- 1992 — 34 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Rhode Island #D000445
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1659489060. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
898
Distinct HCPCS
10
Medicare allowed
$63,407
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 207 | 127 | $130 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 140 | 140 | $131 | |
G0444 |
Annual depression screening, 5 to 15 minutes | 140 | 140 | $19 | |
82270 |
Stool analysis for blood to screen for colon tumors | 82 | 82 | $4 | |
J3301 |
Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 63 | 13 | $1 | |
83036 |
Hemoglobin a1c level | 54 | 27 | $9 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 48 | 15 | $120 | |
99211 |
Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional | 36 | 24 | $24 | |
90686 |
Influenza vaccine, quadrivalent, preservative free, 0.5 ml dosage | 29 | 29 | $0 | |
G0008 |
Administration of influenza virus vaccine | 29 | 29 | $29 |
In context: peer comparison
Among 12 peers in this city , average services per provider: 72. This provider delivers 12× the peer median.Open Payments
Industry payments received
All-time total
$155
Transactions
2
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbott Laboratories | 2 | $154.89 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
3,005
Patients
738
Total drug cost
$46,027
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Simvastatin | Generic | 293 | 77 | $4,476 |
| Levothyroxine Sodium | Generic | 280 | 61 | $5,678 |
| Atorvastatin Calcium | Generic | 277 | 73 | $4,747 |
| Omeprazole | Generic | 265 | 72 | $4,510 |
| Amlodipine Besylate | Generic | 263 | 68 | $2,752 |
| Lisinopril | Generic | 261 | 63 | $2,633 |
| Clonazepam | Generic | 222 | 33 | $1,444 |
| Sertraline Hcl | Generic | 214 | 50 | $3,020 |
| Metoprolol Tartrate | Generic | 182 | 47 | $2,023 |
| Metformin Hcl | Generic | 156 | 42 | $1,946 |
Hospital affiliations
Frequently asked questions
What is Dr. Herbert Brennan's medical specialty?
Dr. Herbert Brennan practices Internal Medicine Physician in East Greenwich, RI.
Where does Dr. Herbert Brennan practice?
Dr. Herbert Brennan practices at 2358 South County Trail, East Greenwich, RI 02818. Office phone: 4018866000.
What is Dr. Herbert Brennan's NPI?
Dr. Herbert Brennan's National Provider Identifier (NPI) is 1659489060, issued by NPPES.
Does Dr. Herbert Brennan accept Medicare assignment?
Dr. Herbert Brennan does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Herbert Brennan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Annual depression screening, 5 to 15 minutes (HCPCS G0444). Source: CMS Medicare Physician & Other Practitioners file.