Martin Greenberg, M.D
NPI 1669698528 · Specialist · Chicago, IL
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Martin Greenberg, M.D is a Specialist provider in Chicago, IL (NPI 1669698528).
Provider details
- NPI number
- 1669698528
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- No
- License
- 036055515 (IL)
Specialties & taxonomies
Other Service 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
- 2007-04-18
- Last updated
- 2018-05-18
Frequently asked questions
- What is Martin Greenberg's NPI number?
- Martin Greenberg's National Provider Identifier (NPI) is 1669698528, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Martin Greenberg's specialty?
- Martin Greenberg is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Martin Greenberg located?
- Martin Greenberg's practice location on file with NPPES is 3000 N Halsted St, Chicago, IL 60657-5196.
- What is Martin Greenberg's phone number?
- The practice phone number listed in the NPPES registry for Martin Greenberg is (773) 296-3900.
- Does Martin Greenberg accept Medicare?
- Martin Greenberg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Martin Greenberg's NPI active?
- Yes — Martin Greenberg's NPI (1669698528) is active in the NPPES registry as of the last update on 2018-05-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.