Dr. Leonard S. Marcus, MD
- Medicare services, 2024
- 144
- Medicare patients, 2024
- 26
- Part D claims, 2024
- 184
- Industry payments
- $1,070
- Affiliated sites
- 1
- Practice address
- 1093 N Main St, Randolph, MA 02368
- Practice phone
- Call (781) 963-7775
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Southeastern Psychiatric Assoc
Randolph, Massachusetts
Find Dr. Marcus' 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. Leonard S. Marcus is a psychiatrist in Randolph, Massachusetts
Dr. Marcus practices at Southeastern Psychiatric Assoc in Randolph, Massachusetts.
Dr. Marcus' NPI, 1730165119, was assigned on December 19, 2005. Dr. Marcus graduated from Boston University School of Medicine in 1985. Dr. Marcus holds Massachusetts license 56380.
- NPI
- 1730165119NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628025400
- NPI enumeration date
- December 19, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (781) 963-7775
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Leonard S. Marcus practices at Southeastern Psychiatric Assoc in Randolph, Massachusetts
Dr. Marcus' primary practice is Southeastern Psychiatric Assoc, at 1093 N Main St, Randolph, MA 02368 in Norfolk County. The practice phone is (781) 963-7775.
- Southeastern Psychiatric Assoc1093 N Main St, Randolph, MA 02368 · Norfolk CountyPhone(781) 963-7775
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Leonard S. Marcus is affiliated with 2 sites of care and 1 medical group
Dr. Marcus' primary practice is Southeastern Psychiatric Assoc in Randolph, Massachusetts. The medical group on file is Southeastern Psychiatric Associates. Dmand AI also links Dr. Marcus 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. Leonard S. Marcus' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marcus practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Southeastern Psychiatric Assoc | 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. Leonard S. Marcus is one of 1,857 psychiatrists in Massachusetts
Psychiatry is Dr. Marcus' primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Marcus is licensed in Massachusetts.
Specialties and state licenses
- Psychiatry, MassachusettsPrimary
Psychiatrists near Dr. Marcus
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. Leonard S. Marcus billed Medicare for 144 services in 2024
CMS data shows 144 Medicare services from Dr. Marcus across 2 procedure codes in 2024, for 26 Medicare patients. Medicare paid $5,977 for them. Every service was in an office.
Dr. Marcus' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 932024: 974%
- Tests and treatments
- 2023: 552024: 4715%
Dr. Marcus compared with the Massachusetts median for psychiatrists, 2024
- Dr. Marcus
- Massachusetts median
- Medicare services
- 144vs 17216% below
- Medicare patients
- 26vs 4238% below
- Part D claims
- 73vs 9221% below
Medians across 2,056 psychiatrists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Marcus' 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Leonard S. Marcus treated 26 Medicare patients in 2024, average age 70
CMS counts 26 Medicare patients who saw Dr. Marcus in 2024. The largest group is 65 to 74, with 12 patients. 75% of them have depression, and 75% have mood disorders. Their average risk score is 0.97, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Marcus' median patient age at 49, with 52% women.
Dr. Marcus' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Marcus' Medicare patients, 2024
- Depression75%
- Mood disorders75%
- High cholesterol65%
- Anxiety62%
- High blood pressure62%
- Arthritis54%
Share of Medicare patients with each condition. A patient can have several.
Dr. Marcus' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women52%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Leonard S. Marcus wrote 184 Medicare Part D claims in 2024
In 2024, Dr. Marcus wrote 184 Medicare Part D claims for 37 patients. 97% of them were for generic drugs. CMS names the drug for 73 of them, across 5 drugs with 11 or more claims each, at $932 in total drug cost. In 2023, CMS named 185 claims across 11 drugs.
Dr. Marcus' Part D claims by kind of drug, 2024
- Generic179 claims97%
- Brand-name and other5 claims3%
Dr. Marcus' 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. Marcus' Part D claims, 2024
- Antipsychotics, patients 65 and over7%12 of 184 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: 1852024: 7361%
Drugs named by CMS: 5 in 2024, 11 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
Dr. Leonard S. Marcus offers telehealth to Medicare patients
Dr. Marcus accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Marcus as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Leonard S. Marcus received $1,070 in industry payments from 2016 to 2025
CMS Open Payments shows 60 general payments to Dr. Marcus from 14 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. ITI, Inc. paid the most, $193.
General payments to Dr. Marcus by program year, 2016 to 2025
Companies that paid Dr. Marcus the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Leonard S. Marcus graduated from Boston University School of Medicine
Dr. Marcus graduated from Boston University School of Medicine in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Leonard S. Marcus'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 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) |
| 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. Leonard S. Marcus
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. Leonard S. Marcus' NPI number?
Dr. Leonard S. Marcus' NPI number is 1730165119. It was assigned on December 19, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Leonard S. Marcus?
Dr. Leonard S. Marcus is a psychiatrist in Randolph, Massachusetts. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Leonard S. Marcus practice?
Dr. Marcus practices at 1093 N Main St, Randolph, MA 02368. Dr. Marcus' primary practice is Southeastern Psychiatric Assoc in Randolph, Massachusetts. Dmand AI also links Dr. Marcus to 1 group practice or clinic.
What is Dr. Leonard S. Marcus' office phone number?
The practice phone on file for Dr. Marcus is (781) 963-7775.
What is Dr. Leonard S. Marcus' medical license number?
Dr. Marcus holds Massachusetts license 56380.
What medical group is Dr. Leonard S. Marcus part of?
Dr. Marcus is linked to Southeastern Psychiatric Associates.
Does Dr. Leonard S. Marcus accept Medicare?
Yes. CMS data shows Dr. Marcus billed Medicare for 144 services in 2024, and Dr. Marcus accepts Medicare assignment.
Does Dr. Leonard S. Marcus offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Marcus as offering telehealth services.
How many Medicare patients does Dr. Leonard S. Marcus see?
CMS counts 26 Medicare patients who saw Dr. Marcus in 2024, with an average age of 70.
What services does Dr. Leonard S. Marcus bill to Medicare?
In 2024, Dr. Marcus' most billed Medicare services were office visit, established patient (99213) and psychiatric service (90836).
Show 4 more questionsShow fewer questions
Where did Dr. Leonard S. Marcus go to medical school?
Dr. Marcus graduated from Boston University School of Medicine in 1985.
What drugs does Dr. Leonard S. Marcus prescribe most?
In 2024 Medicare Part D data, Dr. Marcus' most prescribed drugs by claims were Clonazepam, Escitalopram Oxalate and Bupropion XL.
Has Dr. Leonard S. Marcus received payments from drug or device companies?
CMS Open Payments shows $1,070 in general payments to Dr. Marcus from 14 companies from 2016 to 2025. The largest total came from ITI, Inc.
How long has Dr. Leonard S. Marcus been practicing?
Dr. Marcus graduated from medical school in 1985, 41 years ago.
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