Dr. Nicholas Keating Leonard, MD
- Part D claims, 2024
- 608
- Industry payments
- $103
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 128 Carnegie Row, Norwood, MA 02062
- Practice phone
- Call (781) 762-5858
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Dermatology Associates
Norwood, Massachusetts
Find Dr. Leonard'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. Nicholas Keating Leonard is a dermatologist in Norwood, Massachusetts
Dr. Leonard practices at Dermatology Associates in Norwood, Massachusetts.
Dr. Leonard's NPI, 1386221596, was assigned on March 24, 2021. Dr. Leonard graduated from University of Massachusetts Medical School in 2021. Dr. Leonard holds Massachusetts license 1023293.
- NPI
- 1386221596NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1153720842
- NPI enumeration date
- March 24, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (781) 762-5858
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nicholas Keating Leonard practices at Dermatology Associates in Norwood, Massachusetts
Dr. Leonard's primary practice is Dermatology Associates, at 128 Carnegie Row, Norwood, MA 02062 in Norfolk County. The practice phone is (781) 762-5858.
- Dermatology Associates128 Carnegie Row, Norwood, MA 02062 · Norfolk CountyPhone(781) 762-5858
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Nicholas Keating Leonard is affiliated with 2 sites of care and 1 medical group
Dr. Leonard's primary practice is Dermatology Associates in Norwood, Massachusetts. The medical group on file is Adult & Pediatric Dermatology, PC. Dmand AI also links Dr. Leonard to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Nicholas Keating Leonard's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leonard practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dermatology Associates | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nicholas Keating Leonard is one of 562 dermatologists in Massachusetts
Dermatology is Dr. Leonard's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Leonard is licensed in Massachusetts.
Specialties and state licenses
- Dermatology, MassachusettsPrimary
Dermatologists near Dr. Leonard
Counts of dermatologists 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. Nicholas Keating Leonard's patients have a median age of 42
Across all payers, Dmand AI patient panel data puts Dr. Leonard's median patient age at 42, with 47% women.
Dr. Leonard's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 42
Patient panel by sex, all payers
- Women47%
- Men52%
Source: Dmand AI Patient Panel Data
Dr. Nicholas Keating Leonard wrote 608 Medicare Part D claims in 2024
In 2024, Dr. Leonard wrote 608 Medicare Part D claims for 215 patients. 78% of them were for generic drugs. CMS names the drug for 430 of them, across 17 drugs with 11 or more claims each, at $628,011 in total drug cost.
Dr. Leonard's Part D claims by kind of drug, 2024
- Generic476 claims78%
- Brand-name132 claims22%
Dr. Leonard'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. Leonard's Part D claims, 2024
- Antibiotics3%21 of 608 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
Dr. Nicholas Keating Leonard ranks in the 82nd percentile for removal of skin lesions in Medicare
Dr. Leonard accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 308 procedures of removal of skin lesions by Dr. Leonard, more than 82% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Leonard ranks in Medicare procedure volume
- Removal of skin lesions
- 82nd percentile308 procedures
- Skin biopsy
- 81st percentile158 procedures
- Melanoma (skin cancer) excision
- 74th percentile19 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Nicholas Keating Leonard received $103 in industry payments in 2025
CMS Open Payments shows 4 general payments to Dr. Leonard from 3 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $68.
Companies that paid Dr. Leonard the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Nicholas Keating Leonard graduated from University of Massachusetts Medical School
Dr. Leonard graduated from University of Massachusetts Medical School in 2021.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Nicholas Keating Leonard'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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)Doctors and Clinicians Utilization Data (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. Nicholas Keating Leonard
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. Nicholas Keating Leonard's NPI number?
Dr. Nicholas Keating Leonard's NPI number is 1386221596. It was assigned on March 24, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Nicholas Keating Leonard?
Dr. Nicholas Keating Leonard is a dermatologist in Norwood, Massachusetts. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Nicholas Keating Leonard practice?
Dr. Leonard practices at 128 Carnegie Row, Norwood, MA 02062. Dr. Leonard's primary practice is Dermatology Associates in Norwood, Massachusetts. Dmand AI also links Dr. Leonard to 1 group practice or clinic.
What is Dr. Nicholas Keating Leonard's office phone number?
The practice phone on file for Dr. Leonard is (781) 762-5858.
What is Dr. Nicholas Keating Leonard's medical license number?
Dr. Leonard holds Massachusetts license 1023293.
What medical group is Dr. Nicholas Keating Leonard part of?
Dr. Leonard is linked to Adult & Pediatric Dermatology, PC.
Does Dr. Nicholas Keating Leonard accept Medicare?
Yes. CMS lists Dr. Leonard as accepting Medicare assignment.
Where did Dr. Nicholas Keating Leonard go to medical school?
Dr. Leonard graduated from University of Massachusetts Medical School in 2021.
What drugs does Dr. Nicholas Keating Leonard prescribe most?
In 2024 Medicare Part D data, Dr. Leonard's most prescribed drugs by claims were Ketoconazole, Triamcinolone Acetonide and Dupixent Pen.
Has Dr. Nicholas Keating Leonard received payments from drug or device companies?
CMS Open Payments shows $103 in general payments to Dr. Leonard from 3 companies from 2025 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Nicholas Keating Leonard been practicing?
Dr. Leonard graduated from medical school in 2021, 5 years ago.
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