Mary G. De May, M.D.
Geriatric Psychiatry Psychiatry & Neurology
Mary G. De May is a Geriatric Psychiatry Psychiatry & Neurology specialist based in San Francisco, CA with over 41 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Mary G. De May, M.D. runs an independent geriatric psychiatry psychiatry & neurology specialist practice in San Francisco, CA. She graduated from State University of New York at Stony Brook, School of Medicine in 1985 and has 41+ years of clinical experience. She regularly sees Medicare patients with high cholesterol, hypertension, and Alzheimer's/dementia (per CMS claims data).
Older · 4966dNPPES updated 2012-10-19 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
350 Parnassus Ave Suite 706, San Francisco, CA 94143-0001
How Does This Doctor Compare?
MIPS Score
202374.47/100
California avg: 78.6 · US avg: 83.6
⚠ Lower than most doctors nationally(-9.1 pts)
How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Medicare Patients
67
Unique beneficiaries
Standard volumePrescription Recipients
30
Patients prescribed
Prescriptions Written
255
Total claims
Total Medicare drug cost: $14k
Percentile rankings compared against 9,360 reporting peers in California.
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 High Cholesterol, Hypertension, and Alzheimer's / Dementia.
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↓ Fewer patients than average (-15%) — less common here
Progressive brain disorders causing memory loss and cognitive decline
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%Conditions affecting emotional state, including depression and bipolar disorder
Excessive worry or fear that interferes with daily life
US avg: 34.1%↑ More patients than average (+11%) — 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 (+10%) — a focus area for this doctor
Weakened bones that are more prone to fractures, common in older adults
US avg: 18.1%↑ More patients than average (+7%) — 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 · 1985
Renaissance School of Medicine at Stony Brook University
41 years in practice
Senior practitioner
Geriatric Psychiatry is a subspecialty with psychiatric expertise in prevention, evaluation, diagnosis and treatment of mental and emotional disorders in the elderly, and improvement of psychiatric care for healthy and ill elderly patients.
Taxonomy: 2084P0805X
Education & Training
State University of New York at Stony Brook, School of Medicine (Class of 1985)
Mailing address
1635 Divisadero Street Suite 625, Box 1821, San Francisco, CA 94143-0001
Differs from practice location
Primary hospital affiliation: Acute Care - Veterans Administration
CMS Certification Number: 20003F
View hospital on Medicare Care CompareVirtual Geriatric Psychiatry Care With Mary G. De May
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Mary G. De May for cholesterol management, blood pressure monitoring, cognitive care — no travel to San Francisco 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 Mary G. De May
NPI records show Dr. De May as active with telehealth listed in San Francisco, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (415) 476-6880.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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Contact Mary G. De May
Practice Location
350 Parnassus Ave Suite 706, San Francisco, CA 94143-0001
Mailing Address
1635 Divisadero Street Suite 625, Box 1821, San Francisco, CA 94143-0001
This is a provider directory. Contact the office directly to schedule appointments.
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