Ronald Alan Greeno, MD

Primary specialty

Pulmonary Disease PhysicianTaxonomy code 207RP1001X

License

G60795 Issued in CA

Practice address

1245 Wilshire Blvd
Suite 407
Los Angeles, CA 90017

Phone

(213) 977-4979

Fax

(213) 977-0544

NPI assigned

Oct 17, 2006

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Cogent Healthcare of Brockton PC

  • Internal Medicine Physician
  • Ware, MA
  • NPI 1558623777
  NPD (past) Authorized official
• Cogent Healthcare of Daly City, P.C.

  • Internal Medicine Physician
  • Daly City, CA
  • NPI 1568794881
  NPD (past)
• Cogent Healthcare of Kentucky, PSC

  • Internal Medicine Physician
  • Lexington, KY
  • NPI 1053362293
  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1161043200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1043390735",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1245 WILSHIRE BLVD",
            "address_2": "SUITE 407",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "90017",
            "telephone_number": "213-977-4979",
            "fax_number": "213-977-0544"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1245 WILSHIRE BLVD",
            "address_2": "SUITE 407",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "90017",
            "telephone_number": "213-977-4979",
            "fax_number": "213-977-0544"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREENO",
        "first_name": "RONALD",
        "middle_name": "ALAN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-10-17",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "G60795",
            "primary": false
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "CA",
            "license": "G60795",
            "primary": true
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "CA",
            "license": "G60795",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00G607950",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Aria Greenlee, MA, MS, MS, PSYD
• Nisha Thamban Greenlee, NP
• Sydney Greenlee
• Greenline Diagnostics
• Makishia Janetta Greeno
• Gerald Greenspan, MA
• Lola B Greenspan, MFT
• Mechelle R Greenspan, L.AC.
• David Greenstein
• Joseph Joshua Greenstein, RPH

• Pulmonary Disease Physician in Los Angeles, CA
• Providers in Los Angeles, CA by specialty
• Pulmonary Disease Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.