Dr. Walter Stanley Mathis, MD
- Medicare services, 2019
- 55
- Part D claims, 2024
- 841
- Publications
- 32
- Hospital affiliations
- 1
- Medical groups
- 2
- Practice address
- 34 Park Street, New Haven, CT 06508
- Practice phone
- Call (203) 974-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mathis' 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. Walter Stanley Mathis is a psychiatrist in Hartford, Connecticut
Dr. Mathis practices at Connecticut Mental Health Center in New Haven, Connecticut, part of State of Connecticut.
Dr. Mathis' NPI, 1083975577, was assigned on May 31, 2012. Dr. Mathis holds Connecticut license 55314.
- NPI
- 1083975577NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8022334671
- NPI enumeration date
- May 31, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (203) 974-3000
- 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. Walter Stanley Mathis practices in New Haven and Hartford
Dr. Mathis' primary practice is Connecticut Mental Health Center, at 34 Park Street, New Haven, CT 06508 in New Haven County. The practice phone is (203) 974-3000. The NPI Registry lists Dr. Mathis' practice address as 80 Seymour St, Hartford, CT 06106.
- Connecticut Mental Health CenterPrimary34 Park Street, New Haven, CT 06508 · New Haven CountyPhone(203) 974-3000
- NPI Registry address80 Seymour St, Hartford, CT 06106 · Capitol CountyPhone(203) 980-4950
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Walter Stanley Mathis is affiliated with 1 site of care and 2 medical groups
Dr. Mathis' primary practice is Connecticut Mental Health Center in New Haven, Connecticut, part of State of Connecticut. The medical group on file is Yale Health. Dmand AI also links Dr. Mathis to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Walter Stanley Mathis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mathis practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Connecticut Mental Health Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Walter Stanley Mathis is one of 828 psychiatrists in Connecticut
Psychiatry is Dr. Mathis' primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Mathis is licensed in Connecticut.
Specialties and state licenses
- Psychiatry, ConnecticutPrimary
Psychiatrists near Dr. Mathis
Counts of psychiatrists 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. Walter Stanley Mathis billed Medicare for 55 services in 2019
CMS data shows 55 Medicare services from Dr. Mathis across 2 procedure codes in 2019, all of them office visits. Medicare paid $1,940 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Mathis compared with the Connecticut median for psychiatrists, 2019
- Dr. Mathis
- Connecticut median
- Medicare services
- 55vs 11150% below
- Part D claims
- 722vs 1425.1 times
Medians across 886 psychiatrists in Connecticut with Dmand AI profiles that report each measure.
Dr. Mathis' most billed Medicare procedure codes, 2019
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Mathis?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mathis and other psychiatrists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Walter Stanley Mathis' patients have a median age of 52
Across all payers, Dmand AI patient panel data puts Dr. Mathis' median patient age at 52, with 52% women.
Dr. Mathis' 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
- Women52%
- Men48%
Source: Dmand AI Patient Panel Data
Dr. Walter Stanley Mathis wrote 841 Medicare Part D claims in 2024
In 2024, Dr. Mathis wrote 841 Medicare Part D claims for 17 patients. 96% of them were for generic drugs. CMS names the drug for 722 of them, across 26 drugs with 11 or more claims each, at $20,080 in total drug cost. In 2023, CMS named 582 claims across 23 drugs.
Dr. Mathis' Part D claims by kind of drug, 2024
- Generic805 claims96%
- Brand-name36 claims4%
Dr. Mathis' 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. Mathis' Part D claims, 2024
- Antipsychotics, patients 65 and over3%26 of 841 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: 5822024: 72224%
Drugs named by CMS: 26 in 2024, 23 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
How Dr. Walter Stanley Mathis takes part in Medicare
Dr. Mathis 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. Walter Stanley Mathis has 32 publications on record
Dmand AI links 32 papers to Dr. Mathis, published from 2017 to 2025. 2025 was the busiest year, with 7. The most frequent topics are Psychotic Disorders, Health Services Accessibility and Healthcare Disparities. Dr. Mathis has published most often in JAMA Netw Open. Dr. Mathis' most frequent co-authors are Vinod H. Srihari, MD, Peter A. Kahn, MD and Matcheri S. Keshavan, MD.
Dr. Mathis' papers by year, 2017 to 2025
Topics Dr. Mathis writes about most
- Psychotic Disorders
- Health Services Accessibility
- Healthcare Disparities
- Quality Improvement
- Connecticut
- Early Diagnosis
- Learning Health System
- Pharmacies
Dr. Mathis' most frequent co-authors
- Vinod H. Srihari, MD11 shared papers
- Peter A. Kahn, MD6 shared papers
- Matcheri S. Keshavan, MD6 shared papers
Recent publications by Dr. Mathis
JAMA Netw Open
See who Dr. Mathis researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Mathis works with, so you can find a warm path to the right psychiatrists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Sources for Dr. Walter Stanley Mathis'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand 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 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) |
| 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 |
| 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. Walter Stanley Mathis
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. Walter Stanley Mathis' NPI number?
Dr. Walter Stanley Mathis' NPI number is 1083975577. It was assigned on May 31, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Walter Stanley Mathis?
Dr. Walter Stanley Mathis is a psychiatrist in Hartford, Connecticut. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Walter Stanley Mathis practice?
Dr. Mathis practices at 34 Park Street, New Haven, CT 06508. Dr. Mathis also practices at 80 Seymour St, Hartford, CT 06106. Dr. Mathis' primary practice is Connecticut Mental Health Center in New Haven, Connecticut, part of State of Connecticut. Dmand AI also links Dr. Mathis to 1 medical group.
What is Dr. Walter Stanley Mathis' office phone number?
The practice phone on file for Dr. Mathis is (203) 974-3000.
What is Dr. Walter Stanley Mathis' medical license number?
Dr. Mathis holds Connecticut license 55314.
Which hospitals is Dr. Walter Stanley Mathis affiliated with?
Dr. Mathis practices at Connecticut Mental Health Center in New Haven, Connecticut.
What medical group is Dr. Walter Stanley Mathis part of?
Dr. Mathis is linked to Yale Health. Dmand AI links Dr. Mathis to 1 more medical group.
Does Dr. Walter Stanley Mathis accept Medicare?
Yes. CMS data shows Dr. Mathis billed Medicare for 55 services in 2019, and Dr. Mathis accepts Medicare assignment.
What services does Dr. Walter Stanley Mathis bill to Medicare?
In 2019, Dr. Mathis' most billed Medicare services were office visit, established patient (99214) and office visit, established patient (99213).
What drugs does Dr. Walter Stanley Mathis prescribe most?
In 2024 Medicare Part D data, Dr. Mathis' most prescribed drugs by claims were Clozapine, Benztropine Mesylate and Olanzapine.
Show 3 more questionsShow fewer questions
How long has Dr. Walter Stanley Mathis been practicing?
Dr. Mathis graduated from medical school in 2012, 14 years ago.
Does Dr. Walter Stanley Mathis do research?
Dmand AI links 32 publications to Dr. Mathis, published from 2017 to 2025.
Who does Dr. Walter Stanley Mathis publish with?
Dr. Mathis' most frequent co-authors are Vinod H. Srihari, MD (11 shared papers), Peter A. Kahn, MD (6 shared papers) and Matcheri S. Keshavan, MD (6 shared papers).
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