William M. Gillespie, M.D.
Psychiatry Psychiatry & Neurology
William M. Gillespie, M.D. has been part of the Glendora medical community since 2006 in independent practice. A University of California, Geffen School of Medicine graduate since 1993, he brings 33+ years of experience. He regularly sees Medicare patients with hypertension, high cholesterol, and depression (per CMS claims data).
Older · 4815dNPPES updated 2013-02-28 · verify on CMS
Contact & Location
Practice Location
510 S Grand Ave Ste 200, Glendora, CA 91741-4291
How Does This Doctor Compare?
MIPS Score
20235.11/100
California avg: 78.6 · US avg: 83.6
⚠ Lower than most doctors nationally(-78.5 pts)
How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Medicare Patients
1,021
Unique beneficiaries
High volumePrescription Recipients
982
Patients prescribed
Prescriptions Written
22,593
Total claims
Total Medicare drug cost: $1.97M
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 Hypertension, High Cholesterol, and Depression.
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
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — 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 (+43%) — a focus area for this doctor
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 serious mental disorder affecting thinking, emotions, and behavior
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↑ More patients than average (+13%) — 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 (+21%) — a focus area for this doctor
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$2.9k received from industry
178 transactions reported in 2024 ·Moderate 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 William M. Gillespie's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1993
David Geffen School of Medicine at Ucla
33 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
University of California, Geffen School of Medicine (Class of 1993)
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 190251
View hospital on Medicare Care CompareVirtual Psychiatry & Neurology Care With William M. Gillespie
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with William M. Gillespie for blood pressure monitoring, cholesterol management, depression management — no travel to Glendora 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 William M. Gillespie
NPI records show Dr. Gillespie as active with telehealth listed in Glendora, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (626) 914-1980.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Contact William M. Gillespie
Practice Location
510 S Grand Ave Ste 200, Glendora, CA 91741-4291
Mailing Address
510 S Grand Ave Ste 200, Glendora, CA 91741-4291
This is a provider directory. Contact the office directly to schedule appointments.
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