Gregory C. Mahr, M.D.
Psychiatry Psychiatry & Neurology
Gregory C. Mahr is a Psychiatry Psychiatry & Neurology specialist based in Ferndale, MI with over 43 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Gregory C. Mahr, M.D. has practiced psychiatry & neurology for 43+ years, working in group practice. Trained at Wayne State University School of Medicine (class of 1983), he has been practicing for over 43 years. Among his Medicare patients, common conditions include hypertension, mood disorders, and high cholesterol (per CMS data).
At a glance
- Prescribes opioids less than 25% of reporting doctors in Michigan
- Uses generic medications more than 92% of reporting doctors in Michigan
- Virtual visits available — no app or travel required
Older · 2853dNPPES updated 2018-07-31 · verify NPI on CMS · Verify license at Michigan Board of Medicine
Contact & Location
Practice Location
Kingswood Hospital 10300 West Eight Mile Road, Ferndale, MI 48220
How Does This Doctor Compare?
Based on Medicare data, this doctor prescribes opioid pain medications conservatively, favors affordable generic drugs over brand-name ones.
Opioid Rx
↓ Lower = better4.33%
Michigan avg: 5.3 · US avg: 5.1
✓ Higher than most doctors nationally(-0.8 pts)
4.33% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better96.4%
Michigan avg: 83.5 · US avg: 82.8
✓ Higher than most doctors nationally(+13.6 pts)
Top 8% of reporting doctors in MichiganHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
123
Unique beneficiaries
Standard volumePrescription Recipients
63
Patients prescribed
Prescriptions Written
578
Total claims
Total Medicare drug cost: $21k
Percentile rankings compared against 1,194 reporting peers in Michigan.
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 Hypertension, Mood Disorders, and High Cholesterol.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+5%) — a focus area for this doctor
Conditions affecting emotional state, including depression and bipolar disorder
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+2%) — a focus area for this doctor
A mood disorder causing persistent sadness and loss of interest in activities
US avg: 31.8%↑ More patients than average (+32%) — a focus area for this doctor
Excessive worry or fear that interferes with daily life
US avg: 34.1%↑ More patients than average (+30%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↑ More patients than average (+11%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↑ More patients than average (+20%) — a focus area for this doctor
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↑ More patients than average (+15%) — a focus area for this doctor
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1983
Wayne State University School of Medicine
43 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
Wayne State University School of Medicine (Class of 1983)
Virtual Psychiatry & Neurology Care With Gregory C. Mahr
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Gregory C. Mahr for blood pressure monitoring, mood disorder follow-ups, cholesterol management — no travel to Ferndale 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 C. Mahr
Dr. Mahr is listed as active in the NPI registry with telehealth listed in Ferndale, MI. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (248) 691-4865.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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Contact Gregory C. Mahr
Practice Location
Kingswood Hospital 10300 West Eight Mile Road, Ferndale, MI 48220
Mailing Address
Kingswood Hospital 10300 West Eight Mile Road, Ferndale, MI 48220
This is a provider directory. Contact the office directly to schedule appointments.
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