Andrew Greiner
NPI 1649720004 · Physician Assistant · Chicago, IL
Enrolled with Medicare as Order and Referring Only - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andrew Greiner is a Physician Assistant provider in Chicago, IL (NPI 1649720004).
Provider details
- NPI number
- 1649720004
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 085006039 (IL)
Specialties & taxonomies
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
9 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
- 2016-10-10
- Last updated
- 2021-04-26
- Certified
- 2021-04-26
Frequently asked questions
- What is Andrew Greiner's NPI number?
- Andrew Greiner's National Provider Identifier (NPI) is 1649720004, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andrew Greiner's specialty?
- Andrew Greiner is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Andrew Greiner located?
- Andrew Greiner's practice location on file with NPPES is 2800 S California Ave, Chicago, IL 60608-5107.
- What is Andrew Greiner's phone number?
- The practice phone number listed in the NPPES registry for Andrew Greiner is (773) 674-7488.
- Does Andrew Greiner accept Medicare?
- Andrew Greiner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andrew Greiner's NPI active?
- Yes — Andrew Greiner's NPI (1649720004) is active in the NPPES registry as of the last update on 2021-04-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.