Michael N. Marcus, MD
Psychiatry Physician · Wilmington, DE
Michael N. Marcus, MD is a psychiatry physician with a practice address in Wilmington, Delaware, and NPI 1225013956, issued on Dec 15, 2005. Check the license (Delaware C10004933, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Michael N. Marcus
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- C10004933 DE
Self-reported in NPPES; status is on the state search - Practice location
- 205 W 14TH St, Wilmington, DE 19801
- Phone
- (302) 428-2100
- Enumerated
- Dec 15, 2005
- Record last updated
- Mar 3, 2022
- Fax
- (302) 428-2121
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 162 in Delaware → Look up another NPI →
Also registered at 205 W 14TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Janet Brown, APRNPsychiatric/Mental Health Nurse Practitioner1043290638
- Seema Dattani, M.D.Geriatric Medicine (Family Medicine) Physician1447427471
- Cynthia FanningClinical Social Worker1750755666
- Judith Marcus, MDPsychiatry Physician1437139011
- Mary Beth Transue, LCSWClinical Social Worker1013298652
Verify Michael N. Marcus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
Search for license C10004933Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average psychiatry physician in 2024
123 Medicare Part D claims for 18 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Dexmethylphenidate Hcl11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Michael N. Marcus among 162 psychiatry physician records in Delaware
Michael N. Marcus, MD is one of 162 psychiatry physician records with a practice address in Delaware. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 45% of these records are
- Record last updated2022 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
83 psychiatry physician records list a practice address in Wilmington
They are 83 of the 6,291 NPPES records with a practice address in Wilmington, and 162 psychiatry physician records in Delaware.
All 162 in Delaware → Every provider in Wilmington → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Nana Berikashvili, MDWilmington, DE 198011831129600
- Wolfgang Berten, MDWilmington, DE 198011932184686
- Adam Bowman, MDWilmington, DE 198011992877203
- Norman Broudy, MDWilmington, DE 198011346220928
- Jose Capiro, M.D.Wilmington, DE 198011881630507
- Sandeep Gupta, MDWilmington, DE 198011972577005
- Lara Jaradat, M.D.Wilmington, DE 198011508839309
- Mariam Mammen, MDWilmington, DE 198011093795759
Common questions
What is Michael N. Marcus, MD's NPI number?
Michael N. Marcus, MD's National Provider Identifier (NPI) is 1225013956, issued on Dec 15, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Michael N. Marcus, MD located?
The NPPES record lists a practice address at 205 W 14TH St, Wilmington, DE, 19801. Phone: (302) 428-2100. Providers update this record themselves, so call before visiting.
How can I verify Michael N. Marcus, MD's license?
NPPES lists Delaware license number C10004933, as entered by the provider. Search the Delaware Board of Medical Licensure and Discipline at https://delpros.delaware.gov/OH_VerifyLicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Michael N. Marcus, MD prescribe under Medicare Part D?
In 2024, Michael N. Marcus, MD had 123 Medicare Part D claims for 18 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.