Michael D. Marsh, M.D.
Michael D. Marsh, M.D. has practiced internal medicine for 45+ years, working in independent practice. With 45+ years of experience, he has been practicing in the Toluca Lake area. Among his Medicare patients, common conditions include high cholesterol, hypertension, and arthritis (per CMS data).
At a glance
- Prescribes opioids less than 43% of reporting doctors in California
- Uses generic medications more than 60% of reporting doctors in California
- Virtual visits available — no app or travel required
Older · 2693dNPPES updated 2018-12-21 · verify on CMS
Contact & Location
Practice Location
4418 Vineland Ave Ste 102, Toluca Lake, CA 91602-3457
How Does This Doctor Compare?
Based on Medicare data, this doctor prescribes opioid pain medications conservatively, favors affordable generic drugs over brand-name ones.
MIPS Score
202313.94/100
California avg: 78.6 · US avg: 83.6
⚠ Lower than most doctors nationally(-69.7 pts)
How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Opioid Rx
↓ Lower = better1.53%
California avg: 5.2 · US avg: 5.1
✓ Higher than most doctors nationally(-3.6 pts)
Typical range among reporting doctors in California1.53% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better89.3%
California avg: 83.3 · US avg: 82.8
✓ Higher than most doctors nationally(+6.5 pts)
Typical range among reporting doctors in CaliforniaHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
605
Unique beneficiaries
High volumePrescription Recipients
659
Patients prescribed
Prescriptions Written
10,058
Total claims
Total Medicare drug cost: $924k
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 (+5%) — 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 (+3%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-3%) — less common here
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-9%) — 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
A mood disorder causing persistent sadness and loss of interest in activities
US avg: 31.8%↓ Fewer patients than average (-12%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$2.1k received from industry
39 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 Michael D. Marsh's NPI.
Social Vulnerability Index: 0.24 / 1.00
Low vulnerabilityHe practices in a community where the CDC measures social vulnerability across socioeconomic status, household composition, racial/ethnic minority status, and housing/transportation factors. A higher index indicates more residents may face barriers accessing care.
Source: CDC/ATSDR Social Vulnerability Index.
Patient Reviews
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
45 years in practice
Senior practitioner
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
Primary hospital affiliation: Critical Access Hospitals
CMS Certification Number: 191315
View hospital on Medicare Care CompareVirtual Internal Medicine Care With Michael D. Marsh
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Michael D. Marsh for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Toluca Lake 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 Michael D. Marsh
Dr. Marsh is listed as active in the NPI registry with telehealth listed in Toluca Lake, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (818) 842-7145.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator · CDC SVI. See Data Methodology.
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Contact Michael D. Marsh
Practice Location
4418 Vineland Ave Ste 102, Toluca Lake, CA 91602-3457
Mailing Address
4418 Vineland Ave Ste 102, Toluca Lake, CA 91602-3457
This is a provider directory. Contact the office directly to schedule appointments.
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