David Clair Marsh, FNP-C
- Medicare patients, 2024
- 25
- Part D claims, 2024
- 994
- Hospital affiliations
- 1
- Industry payments
- $655
- Medical group
- 1
- Practice address
- 1706 Lamar Alexander Parkway, Maryville, TN 37804
- Practice phone
- Call (865) 983-0073
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Tennessee Endoscopy Center
Surgery Center - Medicare-Certified · Maryville, Tennessee
Find David Marsh'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.
David Clair Marsh is a nurse practitioner in Maryville, Tennessee
David Marsh practices at Tennessee Endoscopy Center in Maryville, Tennessee.
David Marsh's NPI, 1588627822, was assigned on April 8, 2006. David Marsh graduated from East Tennessee State University Quillen College of Medicine in 1988. David Marsh holds Tennessee license RN0000077905.
- NPI
- 1588627822NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2567522469
- NPI enumeration date
- April 8, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (865) 983-0073
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
David Clair Marsh practices at Tennessee Endoscopy Center in Maryville, Tennessee
David Marsh's primary practice is Tennessee Endoscopy Center, at 1706 Lamar Alexander Parkway, Maryville, TN 37804. The practice phone is (865) 983-0073.
- Tennessee Endoscopy Center1706 Lamar Alexander Parkway, Maryville, TN 37804Phone(865) 983-0073
Source: Dmand AI Affiliation Data
David Clair Marsh is affiliated with 2 sites of care and 1 medical group
David Marsh's primary practice is Tennessee Endoscopy Center in Maryville, Tennessee. David Marsh is also affiliated with Prisma Health Blount Memorial Hospital. The medical group on file is Blount Gastroenterology Associates.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at David Clair Marsh's practice
Dmand AI tracks the electronic health record (EHR) system at each site where David Marsh practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tennessee Endoscopy Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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David Clair Marsh is one of 1,766 nurse practitioners in Tennessee
Nurse practitioner is David Marsh's primary specialty in the NPI Registry, under taxonomy code 363L00000X. David Marsh is licensed in Tennessee.
Specialties and state licenses
- Nurse practitioner, TennesseePrimary
Nurse practitioners near David Marsh
Counts of nurse practitioners 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
David Clair Marsh treated 25 Medicare patients in 2024, average age 77
CMS counts 25 Medicare patients who saw David Marsh in 2024. The largest group is 65 to 74, with 11 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.57, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts David Marsh's median patient age at 62, with 50% women.
David Marsh's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among David Marsh's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis56%
- Diabetes56%
- Chronic kidney disease48%
- Depression48%
- Mood disorders48%
Share of Medicare patients with each condition. A patient can have several.
David Marsh's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
David Clair Marsh wrote 994 Medicare Part D claims in 2024
In 2024, David Marsh wrote 994 Medicare Part D claims for 237 patients. 79% of them were for generic drugs.
David Marsh's Part D claims by kind of drug, 2024
- Generic785 claims79%
- Brand-name209 claims21%
Drug classes CMS tracks in David Marsh's Part D claims, 2024
- Antibiotics5%50 of 994 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How David Clair Marsh takes part in Medicare
David Marsh accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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David Clair Marsh received $655 in industry payments in 2025
CMS Open Payments shows 30 general payments to David Marsh from 10 drug and device companies in 2025. Food and beverage make up the largest share, 87% of the total. Abbvie Inc. paid the most, $147.
General payments to David Marsh by kind, 2025 to 2025
- Food and beverage$57087%
- Education$8513%
Companies that paid David Marsh the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
David Clair Marsh graduated from East Tennessee State University Quillen College of Medicine
David Marsh graduated from East Tennessee State University Quillen College of Medicine in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for David Clair Marsh'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| 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 (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) |
| Training, board certification and memberships | Dmand AI Professional Profile 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
FAQ
Frequently asked questions about David Clair Marsh
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is David Clair Marsh's NPI number?
David Clair Marsh's NPI number is 1588627822. It was assigned on April 8, 2006, and it is active in the NPI Registry.
What does David Clair Marsh specialize in?
David Clair Marsh is a nurse practitioner in Maryville, Tennessee. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does David Clair Marsh practice?
David Marsh practices at 1706 Lamar Alexander Parkway, Maryville, TN 37804. David Marsh's primary practice is Tennessee Endoscopy Center in Maryville, Tennessee.
What is David Clair Marsh's office phone number?
The practice phone on file for David Marsh is (865) 983-0073.
What is David Clair Marsh's medical license number?
David Marsh holds Tennessee license RN0000077905.
Which hospitals is David Clair Marsh affiliated with?
David Marsh is affiliated with Prisma Health Blount Memorial Hospital.
What medical group is David Clair Marsh part of?
David Marsh is linked to Blount Gastroenterology Associates.
Does David Clair Marsh accept Medicare?
Yes. CMS lists David Marsh as accepting Medicare assignment.
How many Medicare patients does David Clair Marsh see?
CMS counts 25 Medicare patients who saw David Marsh in 2024, with an average age of 77.
Where did David Clair Marsh go to medical school?
David Marsh graduated from East Tennessee State University Quillen College of Medicine in 1988.
Has David Clair Marsh received payments from drug or device companies?
CMS Open Payments shows $655 in general payments to David Marsh from 10 companies from 2025 to 2025. The largest total came from Abbvie Inc.
How long has David Clair Marsh been practicing?
David Marsh graduated from medical school in 1988, 38 years ago.
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