Mark Shields, MD
Internal Medicine · Laguna Hills, CA
Mark Shields, MD is a internal medicine in Laguna Hills, CA with about 34 yrs in practice.
- SpecialtyInternal Medicine
- Medical schoolUNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE (1992)
- TelehealthOffers telehealth visits
- Practice size28 clinicians
- Medicare assignmentAccepts assignment (Medicare-approved amount as full payment)
- Medicare activity~248 patients across 1,099 services, avg age 78
Common services
| Service | Medicare services | Medicare allows | |
|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | 354 | $138 | See prices → |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | 203 | $98 | See prices → |
| Blood test, comprehensive group of blood chemicals | 40 | $10 | See prices → |
| Blood test, lipids (cholesterol and triglycerides) | 31 | $13 | See prices → |
| Ldl cholesterol level | 30 | $10 | See prices → |
| Blood test, thyroid stimulating hormone (tsh) | 20 | $16 | See prices → |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 17 | $16 | See prices → |
| Hemoglobin a1c level | 14 | $10 | See prices → |
Hospital affiliations
Source: CMS Medicare Physician & Other Practitioners and the Doctors & Clinicians National Downloadable File (most recent release). Counts reflect Original Medicare activity only and are not a measure of quality. “Medicare allows” is the Medicare fee schedule amount — not what an insured or cash patient pays; for patient prices see the linked procedure pages. Always confirm a clinician’s current details with their office.