Quick answers
- Does Christina L. Michaelis accept Medicare assignment?
- Yes. Medicare's clinician data says Christina L. Michaelis 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 Christina L. Michaelis see?
- In 2024, CMS data shows 564 Original Medicare patients and 4,165 services for Christina L. Michaelis. This counts Original Medicare only and measures volume, not quality.
- What is Christina L. Michaelis's NPI number?
- 1134338221. 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 Christina L. Michaelis, 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 | 564 |
|---|---|
| Services billed to Medicare | 4,165 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)1,086 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)902 services
- Online digital evaluation and management service for an established patient for up to 7 days, total time 5-10 minutes (99421)509 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)484 services
- Blood glucose (sugar) test performed by hand-held instrument (82962)225 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%
- Diabetes52%
- Arthritis45%
- Osteoporosis37%
- Chronic kidney disease30%
Hospitals where Christina L. Michaelis works
Medicare's Facility Affiliation Data lists Christina L. Michaelis 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.
- Houston Methodist HospitalHouston, TX · Acute Care Hospital · Medicare rating: 5 of 5 stars · CCN 450358
- Houston Methodist West HospitalHouston, TX · Acute Care Hospital · Medicare rating: 5 of 5 stars · CCN 670077
- Memorial Hermann Katy HospitalKaty, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · CCN 450847
- Memorial Hermann Memorial City HospitalHouston, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · CCN 450610
- Mid Coast Medical Center - BellvilleBellville, TX · Acute Care Hospital · CCN 450253
Practice locations
Addresses where Christina L. Michaelis is enrolled with Medicare (CMS data updated October 2, 2026).
- 10837 Katy Fwy 200Houston, TX 77079
Group practices
Medicare enrollment lists Christina L. Michaelis as a member of this group (CMS data updated October 2, 2026).
- Amer Al-Karadsheh, M.D., P.A9 clinicians in the group
Specialties
- Endocrinologyprimary
- Internal Medicinealso
Other endocrinologists in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Other clinicians in Amer Al-Karadsheh, M.D., P.A
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Medical school | University Of Texas Southwestern Medical School At Dallas |
|---|---|
| Graduation year | 2005 (21 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1134338221 |
| 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