Dr. Jonathan Craig Marsh, MD
- Part D claims, 2024
- 69
- Hospital affiliations
- 1
- State license
- 1
- Year NPI issued
- 2010
- Practice address
- 79 Middleville Road, Northport, NY 11768
- Practice phone
- Call (516) 261-4400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. 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.
Dr. Jonathan Craig Marsh is a geriatric medicine (internal medicine) physician in Northport, New York
Dr. Marsh practices at Northport VA Medical Center in Northport, New York, part of Veterans Health Administration.
Dr. Marsh's NPI, 1124344890, was assigned on April 20, 2010. Dr. Marsh holds Minnesota license 58402.
- NPI
- 1124344890NPI Registry (opens in a new tab)
- NPI enumeration date
- April 20, 2010
- NPI status
- Active
- Practice phone
- (516) 261-4400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Jonathan Craig Marsh practices at Northport VA Medical Center in Northport, New York
Dr. Marsh's primary practice is Northport VA Medical Center, at 79 Middleville Road, Northport, NY 11768 in Suffolk County. The practice phone is (516) 261-4400.
- Northport VA Medical Center79 Middleville Road, Northport, NY 11768 · Suffolk CountyPhone(516) 261-4400
Source: Dmand AI Affiliation Data
Dr. Jonathan Craig Marsh is affiliated with 1 site of care
Dr. Marsh's primary practice is Northport VA Medical Center in Northport, New York, part of Veterans Health Administration. Dr. Marsh's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jonathan Craig Marsh's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marsh practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northport VA Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Jonathan Craig Marsh is one of 404 geriatric medicine (internal medicine) physicians in New York
Geriatric medicine is Dr. Marsh's primary specialty in the NPI Registry, under taxonomy code 207RG0300X. Dr. Marsh is licensed in Minnesota.
Specialties and state licenses
- Geriatric medicine (internal medicine), MinnesotaPrimary
Geriatric medicine (internal medicine) physicians near Dr. Marsh
Counts of geriatric medicine (internal 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. Jonathan Craig Marsh's patients have a median age of 68
Across all payers, Dmand AI patient panel data puts Dr. Marsh's median patient age at 68, with 0% women.
Dr. 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 68
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. Jonathan Craig Marsh wrote 69 Medicare Part D claims in 2024
In 2024, Dr. Marsh wrote 69 Medicare Part D claims. 96% of them were for generic drugs. CMS names the drug for 60 of them, across 5 drugs with 11 or more claims each, at $585 in total drug cost.
Dr. Marsh's Part D claims by kind of drug, 2024
- Generic66 claims96%
- Brand-name and other3 claims4%
Dr. Marsh'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.
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
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Sources for Dr. Jonathan Craig 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 Data |
| 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) |
| 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. Jonathan Craig 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 Dr. Jonathan Craig Marsh's NPI number?
Dr. Jonathan Craig Marsh's NPI number is 1124344890. It was assigned on April 20, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathan Craig Marsh?
Dr. Jonathan Craig Marsh is a geriatric medicine (internal medicine) physician in Northport, New York. The primary specialty in the NPI Registry is Geriatric Medicine (Internal Medicine) Physician (taxonomy code 207RG0300X).
Where does Dr. Jonathan Craig Marsh practice?
Dr. Marsh practices at 79 Middleville Road, Northport, NY 11768. Dr. Marsh's primary practice is Northport VA Medical Center in Northport, New York, part of Veterans Health Administration.
What is Dr. Jonathan Craig Marsh's office phone number?
The practice phone on file for Dr. Marsh is (516) 261-4400.
What is Dr. Jonathan Craig Marsh's medical license number?
Dr. Marsh holds Minnesota license 58402.
Which hospitals is Dr. Jonathan Craig Marsh affiliated with?
Dr. Marsh practices at Northport VA Medical Center in Northport, New York.
What drugs does Dr. Jonathan Craig Marsh prescribe most?
In 2024 Medicare Part D data, Dr. Marsh's most prescribed drugs by claims were Aripiprazole, Montelukast Sodium and Omeprazole.
How long has Dr. Jonathan Craig Marsh been practicing?
Dr. Marsh's NPI was assigned in 2010.
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