Dr. Michael J. Marshall, DO
- Medicare services, 2024
- 1,433
- Medicare patients, 2024
- 276
- Part D claims, 2024
- 5,170
- Hospital affiliations
- 4
- Industry payments
- $21
- Practice address
- 215 Halton Rd, Greenville, SC 29607
- Practice phone
- Call (864) 454-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Prisma Health University Medical Group
Greenville, South Carolina
Find Dr. Marshall's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Michael J. Marshall is a family medicine physician in Greenville, South Carolina
Dr. Marshall practices at Prisma Health University Medical Group in Greenville, South Carolina.
Dr. Marshall's NPI, 1568809465, was assigned on May 31, 2013. Dr. Marshall holds South Carolina license 83810.
- NPI
- 1568809465NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4385888254
- NPI enumeration date
- May 31, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (864) 454-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael J. Marshall practices at Prisma Health University Medical Group in Greenville, South Carolina
Dr. Marshall's primary practice is Prisma Health University Medical Group, at 215 Halton Rd, Greenville, SC 29607 in Greenville County. The practice phone is (864) 454-2000.
- Prisma Health University Medical Group215 Halton Rd, Greenville, SC 29607 · Greenville CountyPhone(864) 454-2000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Michael J. Marshall is affiliated with 8 sites of care and 2 medical groups
Dr. Marshall's primary practice is Prisma Health University Medical Group in Greenville, South Carolina. Dr. Marshall is also affiliated with Prisma Health Greenville Memorial Hospital. The medical group on file is Prisma Health Medical Group. Dmand AI also links Dr. Marshall to 3 more hospitals, 2 home health agencies, 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Michael J. Marshall's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marshall practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Prisma Health University Medical Group | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael J. Marshall is one of 2,356 family medicine physicians in South Carolina
Family medicine is Dr. Marshall's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dmand AI has Dr. Marshall's licenses on file in 2 states: South Carolina and Washington.
Specialties and state licenses
- Family medicine, South CarolinaPrimary
- General practice, Washington
Family medicine physicians near Dr. Marshall
Counts of family medicine physicians 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
Dr. Michael J. Marshall billed Medicare for 1,433 services in 2024
CMS data shows 1,433 Medicare services from Dr. Marshall across 20 procedure codes in 2024, for 276 Medicare patients. Medicare paid $80,610 for them. Every service was in an office.
Dr. Marshall's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3022024: 898197%
- Surgery
- 2023: 1752024: 22428%
- Other services
- 2023: 1142024: 17957%
- Lab and pathology
- 2023: 602024: 10168%
- Tests and treatments
- 2023: 262024: 3119%
Dr. Marshall compared with the South Carolina median for family medicine physicians, 2024
- Dr. Marshall
- South Carolina median
- Medicare services
- 1,433vs 74493% above
- Medicare patients
- 276vs 23219% above
- Part D claims
- 4,560vs 1,0234.5 times
Medians across 2,295 family medicine physicians in South Carolina with Dmand AI profiles that report each measure.
Dr. Marshall's most billed Medicare procedure codes, 2024
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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Marshall and other family medicine physicians in South Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael J. Marshall treated 276 Medicare patients in 2024, average age 73
CMS counts 276 Medicare patients who saw Dr. Marshall in 2024. The largest group is 65 to 74, with 138 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 4% are also on Medicaid. Their average risk score is 0.86, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Marshall's median patient age at 54, with 44% women.
Dr. Marshall's Medicare patients by age, 2024
Dr. Marshall's Medicare patients by sex, 2024
- Women14051%
- Men13649%
Chronic conditions among Dr. Marshall's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis44%
- Diabetes29%
- Anxiety25%
- Chronic kidney disease25%
- Ischemic heart disease21%
- Mood disorders19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Marshall's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women44%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael J. Marshall wrote 5,170 Medicare Part D claims in 2024
In 2024, Dr. Marshall wrote 5,170 Medicare Part D claims for 428 patients. 89% of them were for generic drugs. CMS names the drug for 4,560 of them, across 105 drugs with 11 or more claims each, at $198,829 in total drug cost. In 2023, CMS named 3,623 claims across 89 drugs.
Dr. Marshall's Part D claims by kind of drug, 2024
- Generic4,622 claims89%
- Brand-name530 claims10%
- Other18 claims0%
Dr. Marshall's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Marshall's Part D claims, 2024
- Opioids1%73 of 5,170 claims
- Antibiotics4%199 of 5,170 claims
- Antipsychotics, patients 65 and over0%14 of 5,170 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3,6232024: 4,56026%
Drugs named by CMS: 105 in 2024, 89 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
Dr. Michael J. Marshall offers telehealth to Medicare patients
Dr. Marshall accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Marshall as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Michael J. Marshall received $21 in industry payments in 2024
CMS Open Payments shows 1 general payment to Dr. Marshall from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Medtronic, Inc. paid the most, $21.
Companies that paid Dr. Marshall the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Michael J. Marshall's profile 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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
FAQ
Frequently asked questions about Dr. Michael J. Marshall
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Michael J. Marshall's NPI number?
Dr. Michael J. Marshall's NPI number is 1568809465. It was assigned on May 31, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael J. Marshall?
Dr. Michael J. Marshall is a family medicine physician in Greenville, South Carolina. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Michael J. Marshall practice?
Dr. Marshall practices at 215 Halton Rd, Greenville, SC 29607. Dr. Marshall's primary practice is Prisma Health University Medical Group in Greenville, South Carolina. Dmand AI also links Dr. Marshall to 3 hospitals, 2 home health agencies, 1 group practice or clinic and 1 medical group.
What is Dr. Michael J. Marshall's office phone number?
The practice phone on file for Dr. Marshall is (864) 454-2000.
What is Dr. Michael J. Marshall's medical license number?
Dr. Marshall holds South Carolina license 83810, one of the licenses on file in 2 states.
Which states has Dr. Michael J. Marshall been licensed in?
Dmand AI has state licenses on file for Dr. Marshall in South Carolina and Washington.
Which hospitals is Dr. Michael J. Marshall affiliated with?
Dr. Marshall is affiliated with Prisma Health Greenville Memorial Hospital. Dmand AI links Dr. Marshall to 3 more hospitals.
What medical group is Dr. Michael J. Marshall part of?
Dr. Marshall is linked to Prisma Health Medical Group. Dmand AI links Dr. Marshall to 1 more medical group.
Does Dr. Michael J. Marshall accept Medicare?
Yes. CMS data shows Dr. Marshall billed Medicare for 1,433 services in 2024, and Dr. Marshall accepts Medicare assignment.
Does Dr. Michael J. Marshall offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Marshall as offering telehealth services.
Show 5 more questionsShow fewer questions
How many Medicare patients does Dr. Michael J. Marshall see?
CMS counts 276 Medicare patients who saw Dr. Marshall in 2024, with an average age of 73.
What services does Dr. Michael J. Marshall bill to Medicare?
In 2024, Dr. Marshall's most billed Medicare services were office visit, established patient (99214), surgery: heart and blood vessels (36415) and care management and other visits (99490).
What drugs does Dr. Michael J. Marshall prescribe most?
In 2024 Medicare Part D data, Dr. Marshall's most prescribed drugs by claims were Amlodipine Besylate, Atorvastatin Calcium and Levothyroxine Sodium.
Has Dr. Michael J. Marshall received payments from drug or device companies?
CMS Open Payments shows $21 in general payments to Dr. Marshall from 1 company from 2024 to 2024. The largest total came from Medtronic, Inc.
How long has Dr. Michael J. Marshall been practicing?
Dr. Marshall graduated from medical school in 2013, 13 years ago.
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