Mary Cavnar-Johnson, M.D.
General Practice · Kingwood, TX
Mary Cavnar-Johnson, M.D. is a general practice in Kingwood, TX with about 40 yrs in practice.
- SpecialtyGeneral Practice
- Medical schoolUNIVERSITY OF TEXAS MEDICAL SCHOOL AT SAN ANTONIO (1986)
- TelehealthOffers telehealth visits
- Practice size55 clinicians
- Medicare assignmentAccepts assignment (Medicare-approved amount as full payment)
- Medicare activity~532 patients across 4,725 services, avg age 75
Common services
| Service | Medicare services | Medicare allows | |
|---|---|---|---|
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | 687 | $90 | See prices → |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | 660 | $128 | See prices → |
| Blood test, comprehensive group of blood chemicals | 270 | $10 | See prices → |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 266 | $8 | See prices → |
| Blood test, lipids (cholesterol and triglycerides) | 232 | $13 | See prices → |
| Blood test, thyroid stimulating hormone (tsh) | 229 | $16 | See prices → |
| Hemoglobin a1c level | 172 | $9 | See prices → |
| Cyanocobalamin (vitamin b-12) level | 49 | $15 | See prices → |
| Vitamin d-3 level | 39 | $29 | See prices → |
| Psa (prostate specific antigen) measurement, total | 28 | $18 | See prices → |
| Urine microalbumin (protein) level | 22 | $6 | See prices → |
| Creatinine level to test for kidney function or muscle injury | 22 | $5 | See prices → |
Hospital affiliations
HCA Houston Healthcare KingwoodMemorial Hermann Hospital SystemMemorial Hermann Northeast HospitalTops Surgical Specialty Hospital
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.