Doctor profile · Federal record
Dr. Sean O'Mahony, MD
Hospice and Palliative Medicine (Internal Medicine) Physician (CMS: Hospice/Palliative Care) · Internal Medicine Physician · Galveston, TX
- NPI 1467542290
- Accepts Medicare
- 35 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
1005 Harborside Dr, Fl 6
Galveston, TX 775550001
(409) 772-4950
fax (409) 747-0707 - Additional location
-
1725 W Harrison St Ste 10
Chicago, IL 606123849
(312) 942-7030
fax (718) 881-6054 - Additional location
-
Mmc-Palliative Care Servc, 3335 Steuben Ave
Bronx, NY 10467
(718) 920-6378 - Mailing address
-
1725 W Harrison St Ste 10
Chicago, IL 606123849
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- September 5, 2025
- Year of graduation
- 1991 — 35 yrs since
- Specialty taxonomy
- 207RH0002X — NUCC code
- State licenses (2)
- Texas #W0973 · Illinois #036126119
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1467542290. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
390
Distinct HCPCS
6
Medicare allowed
$48,483
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 157 | 63 | $131 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 124 | 59 | $127 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 42 | 23 | $104 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 38 | 37 | $140 | |
99442 |
Telephone medical discussion with physician, 11-20 minutes | 16 | 11 | $70 | |
99443 |
Telephone medical discussion with physician, 21-30 minutes | 13 | 12 | $103 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 56. This provider delivers 7.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,050
Patients
198
Total drug cost
$102,921
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 188 | 39 | $4,715 |
| Hydromorphone Hcl | Generic | 98 | 20 | $7,055 |
| Morphine Sulfate | Generic | 94 | 14 | $4,330 |
| Oxycodone Hcl | Generic | 91 | 22 | $2,579 |
| Gabapentin | Generic | 87 | 21 | $1,999 |
| Fentanyl | Generic | 82 | 12 | $10,151 |
| Morphine Sulfate Er (Morphine Sulfate) | Brand | 75 | 16 | $2,248 |
| Pregabalin | Generic | 69 | 19 | $1,313 |
| Buprenorphine-Naloxone (Buprenorphine Hcl/Naloxone Hcl) | Brand | 57 | 0 | $15,000 |
| Buprenorphine | Generic | 51 | 13 | $17,579 |
Frequently asked questions
What is Dr. Sean O'Mahony's medical specialty?
Dr. Sean O'Mahony practices Hospice and Palliative Medicine (Internal Medicine) Physician in Galveston, TX.
Where does Dr. Sean O'Mahony practice?
Dr. Sean O'Mahony practices at 1005 Harborside Dr, Galveston, TX 775550001. Office phone: 4097724950.
What is Dr. Sean O'Mahony's NPI?
Dr. Sean O'Mahony's National Provider Identifier (NPI) is 1467542290, issued by NPPES.
Does Dr. Sean O'Mahony accept Medicare assignment?
Yes. Dr. Sean O'Mahony accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sean O'Mahony commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.