Robert Gordon Marsh, ARNP
- Medicare patients, 2024
- 23
- Part D claims, 2024
- 1,241
- Industry payments
- $68
- Affiliated sites
- 1
- Medical groups
- 3
- Practice address
- 2040 Concourse Dr, Saint Louis, MO 63146
- Practice phone
- Call (913) 895-2400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Quest Diagnostics
Saint Louis, Missouri
Find Robert 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.
Robert Gordon Marsh is a family nurse practitioner in Saint Louis, Missouri
Robert Marsh practices at Quest Diagnostics in Saint Louis, Missouri.
Robert Marsh's NPI, 1679570287, was assigned on June 29, 2005. Robert Marsh holds Missouri license RN 105886.
- NPI
- 1679570287NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3274501713
- NPI enumeration date
- June 29, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (913) 895-2400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Robert Gordon Marsh practices at Quest Diagnostics in Saint Louis, Missouri
Robert Marsh's primary practice is Quest Diagnostics, at 2040 Concourse Dr, Saint Louis, MO 63146 in Saint Louis County. The practice phone is (913) 895-2400.
- Quest Diagnostics2040 Concourse Dr, Saint Louis, MO 63146 · Saint Louis CountyPhone(913) 895-2400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Robert Gordon Marsh is affiliated with 2 sites of care and 3 medical groups
Robert Marsh's primary practice is Quest Diagnostics in Saint Louis, Missouri. The medical group on file is CoxHealth Neurology. Dmand AI also links Robert Marsh to 2 more medical groups and 1 community health center, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Robert Gordon Marsh's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Robert Marsh practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Quest Diagnostics | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Robert Gordon Marsh is one of 3,989 family nurse practitioners in Missouri
Family is Robert Marsh's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Dmand AI has Robert Marsh's licenses on file in 2 states: Missouri and Florida.
Specialties and state licenses
- Family nurse practitioner, MissouriPrimary
- Florida license
Family nurse practitioners near Robert Marsh
Counts of family 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
Robert Gordon Marsh treated 23 Medicare patients in 2024, average age 69
CMS counts 23 Medicare patients who saw Robert Marsh in 2024. 75% of them have high blood pressure, and 65% have high cholesterol. Their average risk score is 0.99, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Robert Marsh's median patient age at 52, with 51% women.
Chronic conditions among Robert Marsh's Medicare patients, 2024
- High blood pressure75%
- High cholesterol65%
Share of Medicare patients with each condition. A patient can have several.
Robert 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 52
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Robert Gordon Marsh wrote 1,241 Medicare Part D claims in 2024
In 2024, Robert Marsh wrote 1,241 Medicare Part D claims for 95 patients. 81% of them were for generic drugs.
Robert Marsh's Part D claims by kind of drug, 2024
- Generic1,011 claims81%
- Brand-name216 claims17%
- Other14 claims1%
Drug classes CMS tracks in Robert Marsh's Part D claims, 2024
- Antibiotics4%45 of 1,241 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 Robert Gordon Marsh takes part in Medicare
Robert 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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Robert Gordon Marsh received $68 in industry payments in 2025
CMS Open Payments shows 3 general payments to Robert Marsh from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Neurocrine BioSciences, Inc. paid the most, $49.
Companies that paid Robert 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
Sources for Robert Gordon 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 | 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 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) |
| 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 Robert Gordon 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 Robert Gordon Marsh's NPI number?
Robert Gordon Marsh's NPI number is 1679570287. It was assigned on June 29, 2005, and it is active in the NPI Registry.
What does Robert Gordon Marsh specialize in?
Robert Gordon Marsh is a family nurse practitioner in Saint Louis, Missouri. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Robert Gordon Marsh practice?
Robert Marsh practices at 2040 Concourse Dr, Saint Louis, MO 63146. Robert Marsh's primary practice is Quest Diagnostics in Saint Louis, Missouri. Dmand AI also links Robert Marsh to 2 medical groups and 1 community health center.
What is Robert Gordon Marsh's office phone number?
The practice phone on file for Robert Marsh is (913) 895-2400.
What is Robert Gordon Marsh's medical license number?
Robert Marsh holds Missouri license RN 105886, one of the licenses on file in 2 states.
Which states has Robert Gordon Marsh been licensed in?
Dmand AI has state licenses on file for Robert Marsh in Missouri and Florida.
What medical group is Robert Gordon Marsh part of?
Robert Marsh is linked to CoxHealth Neurology. Dmand AI links Robert Marsh to 2 more medical groups.
Does Robert Gordon Marsh accept Medicare?
Yes. CMS lists Robert Marsh as accepting Medicare assignment.
How many Medicare patients does Robert Gordon Marsh see?
CMS counts 23 Medicare patients who saw Robert Marsh in 2024, with an average age of 69.
Has Robert Gordon Marsh received payments from drug or device companies?
CMS Open Payments shows $68 in general payments to Robert Marsh from 2 companies from 2025 to 2025. The largest total came from Neurocrine BioSciences, Inc.
How long has Robert Gordon Marsh been practicing?
Robert Marsh graduated from medical school in 1995, 31 years ago.
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