J Neurol Neurosurg Psychiatry
Child of Impaired ParentsLeucine-Rich Repeat Serine-Threonine Protein Kinase-2Parents
Dr. Mark Groves, MD
NPI1891786380
- Part D claims, 2024
- 2,242
- Publications
- 10
- Hospital affiliations
- 1
- Industry payments
- $15
- Medical groups
- 2
- Practice address
- 5 Perryridge Rd, Greenwich, CT 06830
- Practice phone
- Call (203) 863-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Mark Groves is a neurologist in Greenwich, Connecticut
Dr. Groves practices at Greenwich Hospital in Greenwich, Connecticut, part of Yale New Haven Health System.
Dr. Groves' NPI, 1891786380, was assigned on November 2, 2005. Dr. Groves holds New York license 214706.
NPI and contact details
- NPI
- 1891786380NPI Registry (opens in a new tab)
- NPI enumeration date
- November 2, 2005
- NPI status
- Active
- Practice phone
- (203) 863-3000
- 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. Mark Groves practices at Greenwich Hospital in Greenwich, Connecticut
Dr. Groves' primary practice is Greenwich Hospital, at 5 Perryridge Rd, Greenwich, CT 06830 in Fairfield County. The practice phone is (203) 863-3000.
- Greenwich Hospital5 Perryridge Rd, Greenwich, CT 06830 · Fairfield CountyPhone(203) 863-3000
Source: Dmand AI Affiliation Data
Dr. Mark Groves is affiliated with 2 sites of care and 2 medical groups
Dr. Groves' primary practice is Greenwich Hospital in Greenwich, Connecticut, part of Yale New Haven Health System. The medical group on file is Mount Sinai Institute for Liver Medicine. Dmand AI also links Dr. Groves to 1 more group practice or clinic and 1 medical group, each named with a free account.
Mount Sinai Institute for Liver Medicine1 group practice or clinicName with a free account1 medical groupName with a free account
See all 4 affiliations for Dr. GrovesSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark Groves' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Groves practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Greenwich Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark Groves is one of 302 neurologists in Connecticut
Neurology is Dr. Groves' primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Groves is licensed in New York.
Specialties and state licenses
- Neurology, New YorkPrimary
Neurologists near Dr. Groves
Counts of neurologists 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. Mark Groves' patients have a median age of 79
Across all payers, Dmand AI patient panel data puts Dr. Groves' median patient age at 79, with 60% women.
Dr. Groves' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 79
Patient panel by sex, all payers
- Women60%
- Men40%
Source: Dmand AI Patient Panel Data
Dr. Mark Groves wrote 2,242 Medicare Part D claims in 2024
In 2024, Dr. Groves wrote 2,242 Medicare Part D claims for 161 patients. 89% of them were for generic drugs. CMS names the drug for 1,994 of them, across 36 drugs with 11 or more claims each, at $489,288 in total drug cost. In 2023, CMS named 2,011 claims across 33 drugs.
Part D claims, 20242,242
Drugs named by CMS36
Total drug cost$489,288
Part D patients161
Dr. Groves' Part D claims by kind of drug, 2024
- Generic2,001 claims89%
- Brand-name241 claims11%
Dr. Groves' 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. Groves' Part D claims, 2024
- Antipsychotics, patients 65 and over18%404 of 2,242 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: 2,0112024: 1,9941%
Drugs named by CMS: 36 in 2024, 33 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
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Dr. Mark Groves has 10 publications on record
Dmand AI links 10 papers to Dr. Groves, published from 2010 to 2018. 2011 was the busiest year, with 3. The most frequent topics are Parkinson Disease, Huntington Disease and Leucine-Rich Repeat Serine-Threonine Protein Kinase-2. Dr. Groves has published most often in PLoS Curr. Dr. Groves' most frequent co-authors are Susan B. Bressman, MD, Karen S. Marder, MD and Vicki L. Shanker, MD.
Papers10
Years published2010 to 2018
Dr. Groves' papers by year, 2010 to 2018
Topics Dr. Groves writes about most
- Parkinson Disease
- Huntington Disease
- Leucine-Rich Repeat Serine-Threonine Protein Kinase-2
- Psychiatric Status Rating Scales
Dr. Groves' most frequent co-authors
- Susan B. Bressman, MD3 shared papers
- Karen S. Marder, MD3 shared papers
- Vicki L. Shanker, MD3 shared papers
Recent publications by Dr. Groves
GenotypeGlycineJews
Analysis of VarianceDepressionGenetic Testing
See who Dr. Groves researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Groves works with, so you can find a warm path to the right neurologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark Groves received $15 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. Groves from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. ACADIA Pharmaceuticals Inc paid the most, $15.
Companies that paid Dr. Groves the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mark Groves'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Mark Groves
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. Mark Groves' NPI number?
Dr. Mark Groves' NPI number is 1891786380. It was assigned on November 2, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Groves?
Dr. Mark Groves is a neurologist in Greenwich, Connecticut. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Mark Groves practice?
Dr. Groves practices at 5 Perryridge Rd, Greenwich, CT 06830. Dr. Groves' primary practice is Greenwich Hospital in Greenwich, Connecticut, part of Yale New Haven Health System. Dmand AI also links Dr. Groves to 1 group practice or clinic and 1 medical group.
What is Dr. Mark Groves' office phone number?
The practice phone on file for Dr. Groves is (203) 863-3000.
What is Dr. Mark Groves' medical license number?
Dr. Groves holds New York license 214706.
Which hospitals is Dr. Mark Groves affiliated with?
Dr. Groves practices at Greenwich Hospital in Greenwich, Connecticut.
What medical group is Dr. Mark Groves part of?
Dr. Groves is linked to Mount Sinai Institute for Liver Medicine. Dmand AI links Dr. Groves to 1 more medical group.
What drugs does Dr. Mark Groves prescribe most?
In 2024 Medicare Part D data, Dr. Groves' most prescribed drugs by claims were Clozapine, Clonazepam and Mirtazapine.
Has Dr. Mark Groves received payments from drug or device companies?
CMS Open Payments shows $15 in general payments to Dr. Groves from 1 company from 2017 to 2017. The largest total came from ACADIA Pharmaceuticals Inc.
How long has Dr. Mark Groves been practicing?
Dr. Groves' NPI was assigned in 2005.
Does Dr. Mark Groves do research?
Dmand AI links 10 publications to Dr. Groves, published from 2010 to 2018.
Who does Dr. Mark Groves publish with?
Dr. Groves' most frequent co-authors are Susan B. Bressman, MD (3 shared papers), Karen S. Marder, MD (3 shared papers) and Vicki L. Shanker, MD (3 shared papers).
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