Michael W. Marcus, M.D., P.C.
NPI 1780891697 · Clinical Social Worker · Winchester, MA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael W. Marcus, M.D., P.C. is a Clinical Social Worker organization in Winchester, MA (NPI 1780891697).
Provider details
- NPI number
- 1780891697
- Entity type
- Organization
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Michael Marcus, President(781) 721-2737
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Psychiatry Physician2084P0800X
Allopathic & Osteopathic Physicians
- Clinical Nurse Specialist364S00000X
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-17
- Last updated
- 2025-09-11
Frequently asked questions
- What is Michael W. Marcus, M.D., P.C.'s NPI number?
- Michael W. Marcus, M.D., P.C.'s National Provider Identifier (NPI) is 1780891697, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Michael W. Marcus, M.D., P.C.?
- Michael W. Marcus, M.D., P.C. is classified in the NPPES registry as Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Michael W. Marcus, M.D., P.C. located?
- Michael W. Marcus, M.D., P.C.'s practice location on file with NPPES is 898 Main St, Winchester, MA 01890-1913.
- What is Michael W. Marcus, M.D., P.C.'s phone number?
- The practice phone number listed in the NPPES registry for Michael W. Marcus, M.D., P.C. is (781) 721-2737.
- Does Michael W. Marcus, M.D., P.C. accept Medicare?
- Michael W. Marcus, M.D., P.C. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Michael W. Marcus, M.D., P.C.?
- The authorized official listed on Michael W. Marcus, M.D., P.C.'s NPPES record is Michael Marcus, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Michael W. Marcus, M.D., P.C.'s NPI active?
- Yes — Michael W. Marcus, M.D., P.C.'s NPI (1780891697) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.