Sean O'Mahony, MD
NPI 1467542290 · Hospice and Palliative Medicine (Internal Medicine) Physician · Galveston, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sean O'Mahony, MD is a Hospice and Palliative Medicine (Internal Medicine) Physician provider in Galveston, TX (NPI 1467542290).
Provider details
- NPI number
- 1467542290
- Entity type
- Individual
- Primary specialty
- Hospice and Palliative Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036126119 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
205 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 70 | $116 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 42 | $129 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 41 | $100 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 21 | $131 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 17 | $169 |
| Telephone Medical Discussion With Physician, 11-20 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 73 | 21 |
| Oxycodone Hcl | 49 | 14 |
| Gabapentin | 45 | 14 |
| Hydromorphone Hcl | 39 | 14 |
| Fentanyl | 37 | — |
| Pregabalin | 34 | 15 |
Practice location
Mailing address
Additional practice locations (2)
- 1725 W Harrison St Ste 10Chicago, IL 60612-3849Phone: (312) 942-7030Fax: (718) 881-6054
- Mmc-Palliative Care Servc3335 Steuben AveBronx, NY 10467Phone: (718) 920-6378
Registry dates
- Enumerated
- 2006-10-13
- Last updated
- 2025-09-05
- Certified
- 2025-09-05
Frequently asked questions
- What is Sean O'Mahony's NPI number?
- Sean O'Mahony's National Provider Identifier (NPI) is 1467542290, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sean O'Mahony's specialty?
- Sean O'Mahony is listed in the NPPES registry with a primary specialty of Hospice and Palliative Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Sean O'Mahony located?
- Sean O'Mahony's practice location on file with NPPES is 1005 Harborside Dr, Galveston, TX 77555-0001.
- What is Sean O'Mahony's phone number?
- The practice phone number listed in the NPPES registry for Sean O'Mahony is (409) 772-4950.
- Does Sean O'Mahony accept Medicare?
- Sean O'Mahony is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sean O'Mahony's NPI active?
- Yes — Sean O'Mahony's NPI (1467542290) is active in the NPPES registry as of the last update on 2025-09-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.