Quick answers
- Does Thomas J. Brannigan accept Medicare assignment?
- Yes. Medicare's clinician data says Thomas J. Brannigan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Thomas J. Brannigan see?
- In 2024, CMS data shows 1,030 Original Medicare patients and 1,549 services for Thomas J. Brannigan. This counts Original Medicare only and measures volume, not quality.
- What is Thomas J. Brannigan's NPI number?
- 1598710030. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Thomas J. Brannigan, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 1,030 |
|---|---|
| Services billed to Medicare | 1,549 |
| Different services or procedures | 165 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- X-ray of chest, 1 view (71045)364 services
- Ct scan head or brain without contrast (70450)136 services
- X-ray of chest, 2 views (71046)71 services
- Ct scan of abdomen and pelvis with contrast (74177)51 services
- Ct scan of chest without contrast (71250)42 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis58%
- Diabetes53%
- Chronic kidney disease47%
- Ischemic heart disease46%
Hospitals where Thomas J. Brannigan works
Medicare's Facility Affiliation Data lists Thomas J. Brannigan at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Grossmont HospitalLa Mesa, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050026
- Sharp Memorial HospitalSan Diego, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050100
Practice locations
Addresses where Thomas J. Brannigan is enrolled with Medicare (CMS data updated October 2, 2026).
- 5555 Grossmont Ctr DrLa Mesa, CA 91942 (619) 740‑4000
- 8860 Ctr Dr, Suite 100La Mesa, CA 91942 (619) 740‑4000
Group practices
Medicare enrollment lists Thomas J. Brannigan as a member of this group (CMS data updated October 2, 2026).
- X-Ray Medical Group Inc44 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in La Mesa
Clinicians with the same Medicare primary specialty in La Mesa, CA — not a recommendation.
Other clinicians in X-Ray Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Irvine, California College Of Medicine |
| Graduation year | 1987 (39 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1598710030 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians