Gregory Jason Lam, M.D.
Gregory Jason Lam is an Internal Medicine specialist based in Laguna Hills, CA with over 10 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Gregory Jason Lam, M.D. has been part of the Laguna Hills medical community since 2016 in independent practice. He graduated from University of California, San Francisco School of Medicine in 2016 and has 10+ years of clinical experience. He regularly sees Medicare patients with high cholesterol, hypertension, and arthritis (per CMS claims data).
At a glance
- Prescribes opioids less than 48% of reporting doctors in California
- Uses generic medications more than 80% of reporting doctors in California
- Virtual visits available — no app or travel required
Older · 674dNPPES updated 2024-07-18 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
23961 Calle De La Magdalena Ste 200, Laguna Hills, CA 92653-3645
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 = better1.11%
California avg: 5.2 · US avg: 5.1
✓ Higher than most doctors nationally(-4 pts)
Typical range among reporting doctors in California1.11% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better92.5%
California avg: 83.3 · US avg: 82.8
✓ Higher than most doctors nationally(+9.7 pts)
Better than 80% of reporting doctors in CaliforniaHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
265
Unique beneficiaries
Standard volumePrescription Recipients
404
Patients prescribed
Prescriptions Written
3,157
Total claims
Total Medicare drug cost: $309k
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 Arthritis.
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+4%) — a focus area for this doctor
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+1%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-2%) — less common here
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-6%) — less common here
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-5%) — less common here
A mood disorder causing persistent sadness and loss of interest in activities
US avg: 31.8%↓ Fewer patients than average (-10%) — less common here
Conditions affecting emotional state, including depression and bipolar disorder
Excessive worry or fear that interferes with daily life
US avg: 34.1%↓ Fewer patients than average (-13%) — less common here
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 · 2016
University of California, San Francisco School of Medicine
Board certified · Jun 6, 2024
Self-reported via NPPES
10 years in practice
Established
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Taxonomy: 207R00000X
Education & Training
University of California, San Francisco School of Medicine (Class of 2016)
Mailing address
101 the City Dr S, Orange, CA 92868-3201
Differs from practice location
Primary hospital affiliation: Psychiatric
CMS Certification Number: 194098
View hospital on Medicare Care CompareVirtual Internal Medicine Care With Gregory Jason Lam
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Gregory Jason Lam for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Laguna Hills 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 Jason Lam
NPI records show Dr. Lam as active with telehealth listed in Laguna Hills, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (949) 238-4100.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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Contact Gregory Jason Lam
Practice Location
23961 Calle De La Magdalena Ste 200, Laguna Hills, CA 92653-3645
Mailing Address
101 the City Dr S, Orange, CA 92868-3201
This is a provider directory. Contact the office directly to schedule appointments.
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