Dr. Daniel Evan Mason, MD
- Part D claims, 2024
- 357
- Hospital affiliations
- 1
- Industry payments
- $1,722
- State licenses
- 2
- Year NPI issued
- 2006
- Practice address
- 400 East Main Street, Mount Kisco, NY 10549
- Practice phone
- Call (914) 666-1200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mason'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. Daniel Evan Mason is a child and adolescent psychiatrist in Mount Kisco, New York
Dr. Mason practices at Northern Westchester Hospital in Mount Kisco, New York, part of Northwell Health.
Dr. Mason's NPI, 1760584429, was assigned on September 2, 2006. Dr. Mason graduated from Duke University School of Medicine in 1980. Dr. Mason holds Connecticut license 26600.
- NPI
- 1760584429NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1850294109
- NPI enumeration date
- September 2, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (914) 666-1200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Daniel Evan Mason practices at Northern Westchester Hospital in Mount Kisco, New York
Dr. Mason's primary practice is Northern Westchester Hospital, at 400 East Main Street, Mount Kisco, NY 10549 in Westchester County. The practice phone is (914) 666-1200.
- Northern Westchester Hospital400 East Main Street, Mount Kisco, NY 10549 · Westchester CountyPhone(914) 666-1200
Source: Dmand AI Affiliation Data
Dr. Daniel Evan Mason is affiliated with 1 site of care
Dr. Mason's primary practice is Northern Westchester Hospital in Mount Kisco, New York, part of Northwell Health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Daniel Evan Mason's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mason practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northern Westchester Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Northwell Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Daniel Evan Mason is one of 512 childs and adolescent psychiatrists in New York
Child and adolescent psychiatry is Dr. Mason's primary specialty in the NPI Registry, under taxonomy code 2084P0804X. Dmand AI has Dr. Mason's licenses on file in 2 states: Connecticut and New York.
Specialties and state licenses
- Child and adolescent psychiatry, ConnecticutPrimary
- New York license
Childs and adolescent psychiatrists near Dr. Mason
Counts of childs and adolescent 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. Daniel Evan Mason's patients have a median age of 38
Across all payers, Dmand AI patient panel data puts Dr. Mason's median patient age at 38, with 30% women.
Dr. Mason's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 38
Patient panel by sex, all payers
- Women30%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Daniel Evan Mason wrote 357 Medicare Part D claims in 2024
In 2024, Dr. Mason wrote 357 Medicare Part D claims for 40 patients. 97% of them were for generic drugs. CMS names the drug for 240 of them, across 12 drugs with 11 or more claims each, at $3,921 in total drug cost. In 2023, CMS named 302 claims across 14 drugs.
Dr. Mason's Part D claims by kind of drug, 2024
- Generic348 claims97%
- Brand-name and other9 claims3%
Dr. Mason'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.
Drug classes CMS tracks in Dr. Mason's Part D claims, 2024
- Antipsychotics, patients 65 and over3%11 of 357 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: 3022024: 24021%
Drugs named by CMS: 12 in 2024, 14 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. Daniel Evan Mason takes part in Medicare
Dr. Mason 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)
For MedTech and pharma teams
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Dr. Daniel Evan Mason received $1,722 in industry payments from 2016 to 2024
CMS Open Payments shows 38 general payments to Dr. Mason from 8 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Sunovion Pharmaceuticals Inc. paid the most, $532.
General payments to Dr. Mason by program year, 2016 to 2024
Companies that paid Dr. Mason the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Daniel Evan Mason graduated from Duke University School of Medicine
Dr. Mason graduated from Duke University School of Medicine in 1980.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Daniel Evan Mason'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) |
| 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) |
| 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. Daniel Evan Mason
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. Daniel Evan Mason's NPI number?
Dr. Daniel Evan Mason's NPI number is 1760584429. It was assigned on September 2, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Daniel Evan Mason?
Dr. Daniel Evan Mason is a child and adolescent psychiatrist in Mount Kisco, New York. The primary specialty in the NPI Registry is Child & Adolescent Psychiatry Physician (taxonomy code 2084P0804X).
Where does Dr. Daniel Evan Mason practice?
Dr. Mason practices at 400 East Main Street, Mount Kisco, NY 10549. Dr. Mason's primary practice is Northern Westchester Hospital in Mount Kisco, New York, part of Northwell Health.
What is Dr. Daniel Evan Mason's office phone number?
The practice phone on file for Dr. Mason is (914) 666-1200.
What is Dr. Daniel Evan Mason's medical license number?
Dr. Mason holds Connecticut license 26600, one of the licenses on file in 2 states.
Which states has Dr. Daniel Evan Mason been licensed in?
Dmand AI has state licenses on file for Dr. Mason in Connecticut and New York.
Which hospitals is Dr. Daniel Evan Mason affiliated with?
Dr. Mason practices at Northern Westchester Hospital in Mount Kisco, New York.
Does Dr. Daniel Evan Mason accept Medicare?
Yes. CMS lists Dr. Mason as accepting Medicare assignment.
Where did Dr. Daniel Evan Mason go to medical school?
Dr. Mason graduated from Duke University School of Medicine in 1980.
What drugs does Dr. Daniel Evan Mason prescribe most?
In 2024 Medicare Part D data, Dr. Mason's most prescribed drugs by claims were Escitalopram Oxalate, Lamotrigine and Fluoxetine HCl.
Has Dr. Daniel Evan Mason received payments from drug or device companies?
CMS Open Payments shows $1,722 in general payments to Dr. Mason from 8 companies from 2016 to 2024. The largest total came from Sunovion Pharmaceuticals Inc.
How long has Dr. Daniel Evan Mason been practicing?
Dr. Mason graduated from medical school in 1980, 46 years ago.
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