Michael S Greenbaum MD S C
NPI 1841311636 · Psychiatry Physician · Libertyville, IL
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael S Greenbaum MD S C is a Psychiatry Physician organization in Libertyville, IL (NPI 1841311636).
Provider details
- NPI number
- 1841311636
- Entity type
- Organization
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Michael Greenbaum, Psychiatrist(847) 680-2715
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2007-04-02
- Last updated
- 2008-04-20
Frequently asked questions
- What is Michael S Greenbaum MD S C's NPI number?
- Michael S Greenbaum MD S C's National Provider Identifier (NPI) is 1841311636, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Michael S Greenbaum MD S C?
- Michael S Greenbaum MD S C is classified in the NPPES registry as Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Michael S Greenbaum MD S C located?
- Michael S Greenbaum MD S C's practice location on file with NPPES is 31480 N US Highway 45, Libertyville, IL 60048-9444.
- What is Michael S Greenbaum MD S C's phone number?
- The practice phone number listed in the NPPES registry for Michael S Greenbaum MD S C is (847) 680-2715.
- Does Michael S Greenbaum MD S C accept Medicare?
- Michael S Greenbaum MD S 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 S Greenbaum MD S C?
- The authorized official listed on Michael S Greenbaum MD S C's NPPES record is Michael Greenbaum, Psychiatrist. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Michael S Greenbaum MD S C's NPI active?
- Yes — Michael S Greenbaum MD S C's NPI (1841311636) is active in the NPPES registry as of the last update on 2008-04-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.