Dr. Mark Matthew Landreneau, MD
- Medicare services, 2024
- 182
- Medicare patients, 2024
- 158
- Publications
- 3
- Hospital affiliations
- 1
- Medical groups
- 3
- Practice address
- 20 York Street, New Haven, CT 06510
- Practice phone
- Call (203) 688-5900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Yale New Haven Psychiatric Hospital (York St)
Psychiatric Inpatient Facility · New Haven, Connecticut
Find Dr. Landreneau'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. Mark Matthew Landreneau is a neurologist in New Haven, Connecticut
Dr. Landreneau practices at Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut.
Dr. Landreneau's NPI, 1659646875, was assigned on March 21, 2012. Dr. Landreneau graduated from Columbia University College of Physicians and Surgeons in 2012. Dr. Landreneau holds Connecticut license 55629.
- NPI
- 1659646875NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305158809
- NPI enumeration date
- March 21, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (203) 688-5900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Matthew Landreneau practices at Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut
Dr. Landreneau's primary practice is Yale New Haven Psychiatric Hospital (York St), at 20 York Street, New Haven, CT 06510. The practice phone is (203) 688-5900.
- Yale New Haven Psychiatric Hospital (York St)20 York Street, New Haven, CT 06510Phone(203) 688-5900
Source: Dmand AI Affiliation Data
Dr. Mark Matthew Landreneau is affiliated with 3 sites of care and 3 medical groups
Dr. Landreneau's primary practice is Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut. Dr. Landreneau is also affiliated with Yale New Haven Hospital. The medical group on file is Yale Health. Dmand AI also links Dr. Landreneau to 2 more medical groups and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark Matthew Landreneau's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Landreneau practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Yale New Haven Psychiatric Hospital (York St) | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark Matthew Landreneau is one of 302 neurologists in Connecticut
Neurology is Dr. Landreneau's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Landreneau is licensed in Connecticut.
Specialties and state licenses
- Neurology, ConnecticutPrimary
Neurologists near Dr. Landreneau
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 Matthew Landreneau billed Medicare for 182 services in 2024
CMS data shows 182 Medicare services from Dr. Landreneau across 3 procedure codes in 2024, for 158 Medicare patients. Medicare paid $18,125 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Landreneau's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1942024: 1826%
Dr. Landreneau compared with the Connecticut median for neurologists, 2024
- Dr. Landreneau
- Connecticut median
- Medicare services
- 182vs 22318% below
- Medicare patients
- 158vs 157Close to median
Medians across 293 neurologists in Connecticut with Dmand AI profiles that report each measure.
Dr. Landreneau'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. Landreneau and other neurologists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Matthew Landreneau treated 158 Medicare patients in 2024, average age 73
CMS counts 158 Medicare patients who saw Dr. Landreneau in 2024. The largest group is 65 to 74, with 45 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 49% are also on Medicaid. Their average risk score is 2.26, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Landreneau's median patient age at 69, with 63% women.
Dr. Landreneau's Medicare patients by age, 2024
Dr. Landreneau's Medicare patients by sex, 2024
- Women9258%
- Men6642%
Chronic conditions among Dr. Landreneau's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Anxiety61%
- Mood disorders59%
- Arthritis55%
- Depression54%
- Stroke or TIA49%
- Diabetes45%
Share of Medicare patients with each condition. A patient can have several.
Dr. Landreneau's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women63%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Mark Matthew Landreneau takes part in Medicare
Dr. Landreneau 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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Dr. Mark Matthew Landreneau has 3 publications on record
Dmand AI links 3 papers to Dr. Landreneau, published from 2017 to 2020. Dr. Landreneau's most frequent co-authors are Ryan A. Grant, MD, MS, Christopher Sungwoon Hong, MD and David Yi-Gin Hwang, MD.
Dr. Landreneau's papers by year, 2017 to 2020
Dr. Landreneau's most frequent co-authors
- Ryan A. Grant, MD, MS1 shared paper
- Christopher Sungwoon Hong, MD1 shared paper
- David Yi-Gin Hwang, MD1 shared paper
Recent publications by Dr. Landreneau
Semin Respir Crit Care Med
See who Dr. Landreneau researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Landreneau 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 Matthew Landreneau graduated from Columbia University College of Physicians and Surgeons
Dr. Landreneau graduated from Columbia University College of Physicians and Surgeons in 2012.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark Matthew Landreneau'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 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 |
| 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 Dr. Mark Matthew Landreneau
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 Matthew Landreneau's NPI number?
Dr. Mark Matthew Landreneau's NPI number is 1659646875. It was assigned on March 21, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Matthew Landreneau?
Dr. Mark Matthew Landreneau is a neurologist in New Haven, Connecticut. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Mark Matthew Landreneau practice?
Dr. Landreneau practices at 20 York Street, New Haven, CT 06510. Dr. Landreneau's primary practice is Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut. Dmand AI also links Dr. Landreneau to 2 medical groups and 1 group practice or clinic.
What is Dr. Mark Matthew Landreneau's office phone number?
The practice phone on file for Dr. Landreneau is (203) 688-5900.
What is Dr. Mark Matthew Landreneau's medical license number?
Dr. Landreneau holds Connecticut license 55629.
Which hospitals is Dr. Mark Matthew Landreneau affiliated with?
Dr. Landreneau is affiliated with Yale New Haven Hospital.
What medical group is Dr. Mark Matthew Landreneau part of?
Dr. Landreneau is linked to Yale Health. Dmand AI links Dr. Landreneau to 2 more medical groups.
Does Dr. Mark Matthew Landreneau accept Medicare?
Yes. CMS data shows Dr. Landreneau billed Medicare for 182 services in 2024, and Dr. Landreneau accepts Medicare assignment.
How many Medicare patients does Dr. Mark Matthew Landreneau see?
CMS counts 158 Medicare patients who saw Dr. Landreneau in 2024, with an average age of 73.
What services does Dr. Mark Matthew Landreneau bill to Medicare?
In 2024, Dr. Landreneau's most billed Medicare services were hospital inpatient care (99222), hospital inpatient care (99232) and hospital inpatient care (99223).
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Where did Dr. Mark Matthew Landreneau go to medical school?
Dr. Landreneau graduated from Columbia University College of Physicians and Surgeons in 2012.
How long has Dr. Mark Matthew Landreneau been practicing?
Dr. Landreneau graduated from medical school in 2012, 14 years ago.
Does Dr. Mark Matthew Landreneau do research?
Dmand AI links 3 publications to Dr. Landreneau, published from 2017 to 2020.
Who does Dr. Mark Matthew Landreneau publish with?
Dr. Landreneau's most frequent co-authors are Ryan A. Grant, MD, MS (1 shared paper), Christopher Sungwoon Hong, MD (1 shared paper) and David Yi-Gin Hwang, MD (1 shared paper).
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