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DR. RONALD ALAN GREENO MD
NPI 1043390735
Internal Medicine - Pulmonary Disease in Los Angeles, CA

Active since October 17, 2006
1245 WILSHIRE BLVD, SUITE 407, LOS ANGELES, CA 90017(213) 977-4979(213) 977-0544 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Ronald Alan Greeno Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. RONALD ALAN GREENO MD (NPI 1043390735) is an individual pulmonary disease provider in Los Angeles, California, licensed in California (G60795) and active in the NPI registry since October 2006.

NPPES Registry Identity

NPI1043390735
Entity TypeIndividualMale
Primary Taxonomy207RP1001X
Provider Legal NameDR. RONALD ALAN GREENOCredential: MD
Location Address1245 WILSHIRE BLVD, SUITE 407Los Angeles, CA 90017
Mailing Address1245 Wilshire Blvd, Suite 407Los Angeles, CA 90017 · (213) 977-4979 · Fax (213) 977-0544
Phone(213) 977-4979
Fax(213) 977-0544
Sole ProprietorNo
Enumeration DateOctober 17, 2006
Last NPPES UpdateSeptember 11, 2025
✔ NPI 1043390735 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RP1001X
License✔ Licensed in CA · G60795
Definition
An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.
Also ListedInternal MedicineTaxonomy 207R00000X · License G60795 (CA)
Also ListedHospitalistTaxonomy 208M00000X · License G60795 (CA)
1245 WILSHIRE BLVD, Los Angeles, CA 90017
Open in Google Maps ↗

Other Identifiers 1

Medicaid00G607950CA

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PETER LORBER, M.D., A MEDICAL CORPORATION
Psychiatry & Neurology (Neurology)
1245 WILSHIRE BLVD, SUITE 814
LOS ANGELES, CA 90017
Los Angeles County (213) 481-0592
HOMAYOUN TABANDEH M.D.
Ophthalmology
1245 WILSHIRE BLVD, 380
LOS ANGELES, CA 90017
Los Angeles County (213) 483-8810
DR. JAMES C.S. HAHN M.D.
Internal Medicine
1245 WILSHIRE BLVD, SUITE 790
LOS ANGELES, CA 90017
Los Angeles County (323) 735-1111
DR. ELLSWORTH RAYMOND GRANT M.D
Internal Medicine (Hematology & Oncology)
1245 WILSHIRE BLVD, SUITE 801
LOS ANGELES, CA 90017
Los Angeles County (213) 481-3948
DR. ALEXIS GEORG HOEN MD
Internal Medicine
1245 WILSHIRE BLVD, STE 307
LOS ANGELES, CA 90017
Los Angeles County (213) 977-1165
DOWNTOWN LOS ANGELES MEDICAL GROUP INC
Specialist
1245 WILSHIRE BLVD, SUITE 905
LOS ANGELES, CA 90017
Los Angeles County (213) 481-0584
RICHARD H. ROE M.D.
Ophthalmology
1245 WILSHIRE BLVD, 380
LOS ANGELES, CA 90017
Los Angeles County (213) 483-8810
SKY JAZEL MCINTYRE AUD
Audiologist
1245 WILSHIRE BLVD, SUITE 100
LOS ANGELES, CA 90017
Los Angeles County (213) 483-9930

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ronald Greeno's NPI number?

The NPI number for Ronald Greeno is 1043390735. It was assigned to this individual provider in the NPPES registry on October 17, 2006.

Where is Ronald Greeno located?

Ronald Greeno practices at 1245 Wilshire Blvd Suite 407, Los Angeles, CA 90017. The listed phone number is (213) 977-4979.

What is Ronald Greeno's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

When was this NPI record last updated?

The NPPES record for Ronald Greeno was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.