Gregory Warren Mattingly, M.D.
Psychiatry Psychiatry & Neurology
Gregory Warren Mattingly is a Psychiatry Psychiatry & Neurology specialist based in Saint Charles, MO with over 37 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Gregory Warren Mattingly, M.D. has been part of the Saint Charles medical community since 2005 in independent practice. Trained at Washington University School of Medicine (class of 1989), he has been practicing for over 37 years. CMS Medicare data shows his patients commonly have anxiety, mood disorders, and depression.
At a glance
- Uses generic medications more than 43% of reporting doctors in Missouri
- Virtual visits available — no app or travel required
Older · 3404dNPPES updated 2017-01-26 · verify NPI on CMS · Verify license at Missouri Board of Registration for the Healing Arts
Contact & Location
Practice Location
330 1st Capitol Dr Ste 390, Saint Charles, MO 63301-2852
How Does This Doctor Compare?
Based on Medicare data, this doctor favors affordable generic drugs over brand-name ones.
Generic Rx
↑ Higher = better87.2%
Missouri avg: 83.4 · US avg: 82.8
✓ Higher than most doctors nationally(+4.4 pts)
Typical range among reporting doctors in MissouriHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
97
Unique beneficiaries
Standard volumePrescription Recipients
363
Patients prescribed
Prescriptions Written
5,221
Total claims
Total Medicare drug cost: $836k
Percentile rankings compared against 912 reporting peers in Missouri.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages Anxiety Disorders, Mood Disorders, and Depression.
Excessive worry or fear that interferes with daily life
US avg: 34.1%↑ More patients than average (+41%) — a focus area for this doctor
Conditions affecting emotional state, including depression and bipolar disorder
A mood disorder causing persistent sadness and loss of interest in activities
US avg: 31.8%↑ More patients than average (+39%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↓ Fewer patients than average (-12%) — less common here
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↓ Fewer patients than average (-17%) — less common here
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-14%) — less common here
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-2%) — less common here
A condition with extreme mood swings between emotional highs and lows
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$827.0k received from industry
821 transactions reported in 2024 ·Very High tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Gregory Warren Mattingly's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1989
Washington University School of Medicine in St. Louis
37 years in practice
Senior practitioner
Psychiatrists are physicians who diagnose and treat mental health conditions including depression, anxiety disorders, bipolar disorder, schizophrenia, PTSD, and substance use disorders. They can prescribe medications and provide psychotherapy.
Taxonomy: 2084P0800X
Education & Training
Washington University School of Medicine (Class of 1989)
Mailing address
4801 Weldon Spring Pkwy Ste 300, Weldon Spring, MO 63304-9101
Differs from practice location
Virtual Psychiatry & Neurology Care With Gregory Warren Mattingly
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Gregory Warren Mattingly for anxiety counseling, mood disorder follow-ups, depression management — no travel to Saint Charles required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Gregory Warren Mattingly
Dr. Mattingly is listed as active in the NPI registry with telehealth listed in Saint Charles, MO. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (636) 949-5760.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Contact Gregory Warren Mattingly
Practice Location
330 1st Capitol Dr Ste 390, Saint Charles, MO 63301-2852
Mailing Address
4801 Weldon Spring Pkwy Ste 300, Weldon Spring, MO 63304-9101
This is a provider directory. Contact the office directly to schedule appointments.
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