Welcome to SchnitzMD

Specializing in Rheumatology

We work by referral from your primary care or other specialty provider to diagnose and treat rheumatic disease. To learn more about what a rheumatologist does, please explore our links and knowledge articles. 

Clinic Locations & Hours


801 S. Walnut

 Stillwater, OK 74074


Oklahoma City

 3555 NW 58th St #804

 Oklahoma City, OK 73112



Mon-Fri 9 AM - 5 PM

Sat-Sun Closed

Contact Us




Billing: Mary

Scheduling/records: Kristen

Patient Care

Medical assistant: Alyzia

Reception/medication authorization: Alicia




Arthritis Foundation

Sjogren's Syndrome Foundation

Lupus Foundation

Lupus Foundation Oklahoma

Oklahoma Medical Research Foundation

Association of Women in Rheumatology

Patient Resources

Lynn Health Sciences Institute





Massage therapy - Donna Simpson

Physical therapy - Total Rehab / Stillwater

Online Medical Information

Most common types of arthritis

Although there are over a hundred types of arthritis, three account for about 90% of cases. 

Other problems rheumatologists commonly see

Polymyalgia rheumatica

Polymyalgia rheumatica (PMR) is a surprisingly common condition that occurs only in people over age 50. Average age is 70. It comes on suddenly and causes pain and stiffness mostly in the shoulders and hips. 

Psoriatic arthritis

Psoriatic arthritis (PsA) occurs in about 20% of people with psoriasis, a common, chronic skin disease. There are 5 types of PsA and no test that can diagnose it. 


Systemic lupus (SLE) occurs in about 1:1500 people. It is called a protean autoimmune disease meaning it can present in different ways but skin and arthritis are the most common features.


Fibromyalgia is a common condtion, affecting about 4% of the population, that presents with widespread pain, fatigue, poor sleep, and a foggy brain. Headahces and irritable bowel syndrome are also common with fibromyalgia. There is no test for fibromyalgia.