Quick answers
- Does Margaret G. McKernan accept Medicare assignment?
- Yes. Medicare's clinician data says Margaret G. McKernan 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 Margaret G. McKernan see?
- In 2024, CMS data shows 1,870 Original Medicare patients and 2,722 services for Margaret G. McKernan. This counts Original Medicare only and measures volume, not quality.
- What is Margaret G. McKernan's NPI number?
- 1275595076. 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 Margaret G. McKernan, 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 | 1,870 |
|---|---|
| Services billed to Medicare | 2,722 |
| Different services or procedures | 103 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- X-ray of chest, 1 view (71045)714 services
- Ct scan of abdomen and pelvis with contrast (74177)248 services
- Ct scan head or brain without contrast (70450)223 services
- Ct scan of abdomen and pelvis without contrast (74176)177 services
- Ct scan of blood vessels of chest with contrast (71275)135 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%
- Arthritis55%
- Ischemic heart disease48%
- Diabetes45%
- Chronic kidney disease45%
Hospitals where Margaret G. McKernan works
Medicare's Facility Affiliation Data lists Margaret G. McKernan 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.
- Baylor Scott and White Medical Center SunnyvaleSunnyvale, TX · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 670060
- Medical City DentonDenton, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450634
- Medical City PlanoPlano, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 450651
- Methodist Richardson Medical CenterRichardson, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450537
- UTMB Health League City Campus HospitalLeague City, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · CCN 450018
Practice locations
Addresses where Margaret G. McKernan is enrolled with Medicare (CMS data updated October 2, 2026).
- 1585 Kapiolani Blvd, Suite 920Honolulu, HI 96814 (972) 867‑7862
- 301 University BlvdGalveston, TX 77555 (409) 772‑2222
- 7 Medical PkwyDallas, TX 75234 (972) 888‑7000
Group practices
Medicare enrollment lists Margaret G. McKernan as a member of these groups (CMS data updated October 2, 2026).
- UTMB Faculty Group Practice1,101 clinicians in the group
- Texas Radiology Associates LLP153 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Honolulu
Clinicians with the same Medicare primary specialty in Honolulu, HI — not a recommendation.
Other clinicians in UTMB Faculty Group Practice
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical Branch At Galveston |
| Graduation year | 1999 (27 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1275595076 |
| 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