Physician Profile

Justin C. Greiwe, M.D.

Unclaimed Profile

About Dr. Greiwe

Justin C. Greiwe, M.D. practices allergy & immunology in Cincinnati, OH. Medicare claims data shows Justin provided 223 services to 132 patients. The services billed most often include professional service for multiple injections of allergen, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more.

Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.

Specialty

Allergy & Immunology (Primary)

Credentials & Licensing

OH license35.09897
NPI1942444807
NPI issued04/22/2009

License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.

Medicare information

Medicare opt-outYes, since May 2025
Can order and refer in MedicareYes

Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.

Common questions

What does Justin C. Greiwe specialize in?

Justin C. Greiwe is an allergist in Cincinnati, OH. That is the designation recorded for this NPI in the federal registry, where it is listed as “Allergy & Immunology”.

NPI registry

Where is Justin C. Greiwe located?

Justin C. Greiwe is listed at 4665 E Galbraith Rd Fl 2, Cincinnati, OH 45236. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Justin C. Greiwe's phone number?

The number on file is (513) 931-0775. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is the NPI for Justin C. Greiwe?

Justin C. Greiwe's National Provider Identifier is 1942444807. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.

NPI registry

How much experience does Justin C. Greiwe have?

Justin C. Greiwe has 17+ years experience. Registered with an NPI since 2009. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.

NPI registry

What does Justin C. Greiwe do most often?

According to Medicare billing data, Justin C. Greiwe provides treatments such as professional service for multiple injections of allergen and test to measure expiratory airflow and volume, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.

Medicare claims

Is Justin C. Greiwe's profile verified?

Not yet. This profile is built from public federal data and has not been confirmed by Justin C. Greiwe. If this is you, claiming it is free.

Guide.md

Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.