MICHAEL N MARCUS MD
NPI 1225013956
Psychiatry & Neurology - Psychiatry in Wilmington, DE

Q: What is Michael Marcus's NPI number?

The NPI number for Michael Marcus is 1225013956. It was assigned to this individual provider in the NPPES registry on December 15, 2005.

Q: What is Michael Marcus's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Q: When was this NPI record last updated?

The NPPES record for Michael Marcus was last updated on March 3, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since December 15, 2005PECOS Enrolled

205 W 14TH ST, SUITE100, WILMINGTON, DE 19801(302) 428-2100(302) 428-2121 Get Directions Write a Review

NPPES record last updated: March 3, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 3, 2022, Feb 4, 2022 (2 updates tracked since 2022).

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About Michael N Marcus Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MICHAEL N MARCUS MD (NPI 1225013956) is an individual psychiatry provider in Wilmington, Delaware, licensed in Delaware (C10004933) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1225013956

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameMICHAEL N MARCUSCredential: MD

Location Address205 W 14TH ST, SUITE100Wilmington, DE 19801-1114

Mailing Address205 W 14th St, Suite100Wilmington, DE 19801-1114 · (302) 428-2100 · Fax (302) 428-2121

Phone(302) 428-2100

Fax(302) 428-2121

Sole ProprietorNo

Enumeration DateDecember 15, 2005

Last NPPES UpdateMarch 3, 20222 updates tracked since enumeration

✔ NPI 1225013956 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

License✔ Licensed in DE · C10004933

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

205 W 14TH ST, Wilmington, DE 19801

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Kaiser Permanente.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Michael N Marcus Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Michael Marcus reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sapphire At Gresham Rehab, LLC

2,388 mi

Skilled Nursing Facility

405 NE 5TH ST
Gresham, OR 97030

Reassigned Medicare billing, Oregon and Washington enrollments
Medicare enrollment name: Kaiser Foundation Health Plan Of The Northwest
Also billed through NPI 1609171081 (Washington)
3,207 clinicians in this Medicare group

NPI 1033740899 (503) 666-5600

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19801 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$173.08 typical visit price

range $57.12 – $173.08

Typical copayment $43.27 (range $14.28 – $43.27)

Most-billed visit code 99205

Established Patient

$71.19 typical visit price

range $18.36 – $141.05

Typical copayment $17.79 (range $4.59 – $35.26)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARY BETH TRANSUE LCSW

Social Worker (Clinical)

205 W 14TH ST, SWANK MEMORY CARE CENTER, SUITE 100A
WILMINGTON, DE 19801

New Castle County (302) 428-2664

JANET BROWN APRN

Nurse Practitioner (Psychiatric/Mental Health)

205 W 14TH ST, SUITE 100
WILMINGTON, DE 19801

New Castle County (302) 421-2100

JUDITH T MARCUS MD

Psychiatry & Neurology (Psychiatry)

205 W 14TH ST, SUITE 100
WILMINGTON, DE 19801

New Castle County (302) 428-2100

DR. SEEMA BIPIN DATTANI M.D.

Family Medicine (Geriatric Medicine)

205 W 14TH ST
WILMINGTON, DE 19801

New Castle County (302) 428-2637

CYNTHIA M FANNING

Social Worker (Clinical)

205 W 14TH ST, SUITE 100A
WILMINGTON, DE 19801

New Castle County (302) 320-2620

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Michael Marcus's NPI number?

The NPI number for Michael Marcus is 1225013956. It was assigned to this individual provider in the NPPES registry on December 15, 2005.

Where is Michael Marcus located?

Michael Marcus practices at 205 W 14th St Suite100, Wilmington, DE 19801. The listed phone number is (302) 428-2100.

What is Michael Marcus's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Michael Marcus enrolled in Medicare?

Yes. Michael Marcus is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Michael Marcus's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Marcus reassigns Medicare benefits to Sapphire At Gresham Rehab, LLC (Gresham, OR). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Michael Marcus's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Michael Marcus accept?

Health plans from Kaiser Permanente list Michael Marcus as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Michael Marcus was last updated on March 3, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.