Primary practice
Premiere Medical Center - Urgent Care
Urgent Care Center · Toluca, California
Find Dr. Marsh's professional email, personal email and mobile number
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Dr. Marsh practices at Premiere Medical Center - Urgent Care in Toluca, California.
Dr. Marsh's NPI, 1619992047, was assigned on July 13, 2006. Dr. Marsh graduated from St. George's University School of Medicine in 1981. Dr. Marsh holds California license A39430.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marsh's primary practice is Premiere Medical Center - Urgent Care, at 4418 Vineland Avenue, Toluca, CA 91602. The practice phone is (818) 842-7145.
Source: Dmand AI Affiliation Data
Dr. Marsh's primary practice is Premiere Medical Center - Urgent Care in Toluca, California. Dr. Marsh is also affiliated with Providence Saint Joseph Medical Center. The medical group on file is Toluca Lake Premiere Medical Center. Dmand AI also links Dr. Marsh to 3 more group practices and clinics, 2 home health agencies and 2 medical groups, each named with a free account. Dr. Marsh's employer is on file too: an urgent care center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marsh practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Premiere Medical Center - Urgent Care | Available with a free account |
| +6 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Internal medicine is Dr. Marsh's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Marsh is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Marsh's licenses on file in 4 states: California, New Jersey, Washington and Iowa.
Dmand AI lists acid reflux, acute gastroduodenitis, acute kidney failure, acute mini-stroke (TIA), acute sinusitis, acute skin infection, ADHD and alzheimer's disease among the conditions Dr. Marsh treats.
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
CMS data shows 19,720 Medicare services from Dr. Marsh across 83 procedure codes in 2024, for 699 Medicare patients. Medicare paid $434,501 for them.
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
CMS counts 699 Medicare patients who saw Dr. Marsh in 2024. The largest group is 65 to 74, with 353 patients. 75% of them have high cholesterol, and 70% have high blood pressure. 17% are also on Medicaid. Their average risk score is 1.06, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Marsh's median patient age at 64, with 51% women.
Share of Medicare patients with each condition. A patient can have several.
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Median age 64
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
In 2024, Dr. Marsh wrote 10,793 Medicare Part D claims for 672 patients. 88% of them were for generic drugs. CMS names the drug for 9,961 of them, across 158 drugs with 11 or more claims each, at $861,298 in total drug cost. In 2023, CMS named 9,295 claims across 159 drugs.
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Drugs named by CMS: 158 in 2024, 159 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Marsh for performance year 2024, reported individually. Dr. Marsh accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Marsh as offering telehealth.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dmand AI links Dr. Marsh to 1 clinical trial. 1 is still active or recruiting. Conditions studied include Diabetes Mellitus, Type 2 and Diabetes Mellitus. Open Payments lists research payments to Dr. Marsh that name 3 trials.
Conditions in Dr. Marsh's trials
Sources: Open Payments (CMS), 2025 data, released July 7, 2026; ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
CMS Open Payments shows 476 general payments to Dr. Marsh from 71 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 89% of the total. Eli Lilly and Company paid the most, $1,669. It also lists 5 research payments totaling $20,421 from 2023 to 2024, naming 3 clinical trials.
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dmand AI lists 1 award for Dr. Marsh, most recently CMS Stage 1 2012 in 2012.
Source: Dmand AI Professional Profile Data
Dr. Marsh graduated from St. George's University School of Medicine in 1981.
Source: Dmand AI Professional Profile Data
Dr. Marsh is in network with 14 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
Source: Dmand AI Insurance Network Data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Clinical trials and co-investigators | ClinicalTrials.gov (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
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Dr. Michael D. Marsh's NPI number is 1619992047. It was assigned on July 13, 2006, and it is active in the NPI Registry.
Dr. Michael D. Marsh is an internist in North Hollywood, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Dr. Marsh practices at 4418 Vineland Avenue, Toluca, CA 91602. Dr. Marsh's primary practice is Premiere Medical Center - Urgent Care in Toluca, California. Dmand AI also links Dr. Marsh to 3 group practices and clinics, 2 home health agencies and 2 medical groups.
The practice phone on file for Dr. Marsh is (818) 842-7145.
Dr. Marsh holds California license A39430, one of the licenses on file in 4 states.
Dmand AI has state licenses on file for Dr. Marsh in California (1982 to 2026), New Jersey (since 1982), Washington and Iowa (1982 to 1987).
Dr. Marsh is affiliated with Providence Saint Joseph Medical Center.
Dr. Marsh is linked to Toluca Lake Premiere Medical Center. Dmand AI links Dr. Marsh to 2 more medical groups.
Yes. CMS data shows Dr. Marsh billed Medicare for 19,720 services in 2024, and Dr. Marsh accepts Medicare assignment.
Yes. The CMS Doctors and Clinicians file lists Dr. Marsh as offering telehealth services.
Dr. Marsh's MIPS final score for performance year 2024 is 75 out of 100, reported individually.
CMS counts 699 Medicare patients who saw Dr. Marsh in 2024, with an average age of 74.
Yes. Dr. Marsh is board certified in internal medicine by the American Board of Internal Medicine.
In 2024, Dr. Marsh's most billed Medicare services were office visit, established patient (99213), allergy test or treatment (95004) and surgery: heart and blood vessels (36415).
Dr. Marsh graduated from St. George's University School of Medicine in 1981.
In 2024 Medicare Part D data, Dr. Marsh's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Amlodipine Besylate.
CMS Open Payments shows $11,468 in general payments to Dr. Marsh from 71 companies from 2016 to 2025. The largest total came from Eli Lilly and Company.
Dr. Marsh graduated from medical school in 1981, 45 years ago.
Dr. Marsh has worked on 1 clinical trial.
Dr. Marsh is in network with 14 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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