Mark Williamson, MD
Psychiatry Physician · Houston, TX 77087 · NPI 1760591028 · 1 payer file
94%of Medicare
UnitedHealthcare — Optum Behavioral Health pays Mark Williamson, MD $90.82 for a 99213 — Office visit, established patient, low complexity. Medicare pays $96.33 for the same service in this locality. Commercial insurance is widely assumed to pay above Medicare.
Negotiated rates vs Medicare
| Service | Payer · plan | Negotiated | Medicare | % of Medicare | Among Houston psychiatry physicians, same plan |
|---|---|---|---|---|---|
| 99213Office visit, established patient, low complexity | UnitedHealthcare — Optum Behavioral Health | $90.82 | $96.33 | 94% | above 15% of 204 Houston psychiatry physicians on this plan |
| 99214Office visit, established patient, moderate complexity | UnitedHealthcare — Optum Behavioral Health | $128.43 | $137.41 | 93% | above 15% of 197 Houston psychiatry physicians on this plan |
| 90833Psychotherapy, 30 minutes, add-on to an office visit | UnitedHealthcare — Optum Behavioral Health | $76.03 | $82.68 | 92% | above 12% of 197 Houston psychiatry physicians on this plan |
| 90838Psychotherapy, 60 minutes, add-on to an office visit | UnitedHealthcare — Optum Behavioral Health | $116.57 | $138.62 | 84% | above 14% of 197 Houston psychiatry physicians on this plan |