Ronald F Feinberg, MD, PHD

Primary specialty

Reproductive Endocrinology PhysicianTaxonomy code 207VE0102X

License

C10004849 Issued in DE

Practice address

4735 Ogletown Stanton Rd
Suite 3217
Newark, DE 19713-2072

Phone

(302) 623-4244

Fax

(302) 623-4241

NPI assigned

Apr 20, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Doctor of Medicine, Doctor of Philosophy

State licenses

Interoperability endpoints

• Direct secure messaging: ronald.feinberg.1@17469.direct.athenahealth.com

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

{
    "created_epoch": "1145491200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1689639668",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4735 OGLETOWN STANTON RD",
            "address_2": "SUITE 3217",
            "city": "NEWARK",
            "state": "DE",
            "postal_code": "197132072",
            "telephone_number": "302-623-4244",
            "fax_number": "302-623-4241"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4735 OGLETOWN STANTON RD",
            "address_2": "SUITE 3217",
            "city": "NEWARK",
            "state": "DE",
            "postal_code": "197132072",
            "telephone_number": "302-623-4244",
            "fax_number": "302-623-4241"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FEINBERG",
        "first_name": "RONALD",
        "middle_name": "F",
        "credential": "MD, PHD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-20",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207VE0102X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology, Reproductive Endocrinology",
            "state": "DE",
            "license": "C10004849",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Michael Thomas Favara, D.O.
• Ryan James Fedewitz, MSN, CRNA
• Raymond V Feehery Jr., DPM, MS
• Madison Feeser
• Stephanie Anne Fegley, APN
• Riley Feinour
• Monica Felder, MSW
• Daniel Ryan Feldman, DO, MPH
• Susan C. Felicia, FNP
• Eric T Felker, PAC

• Reproductive Endocrinology Physician in Newark, DE
• Providers in Newark, DE by specialty
• Reproductive Endocrinology Physician in Delaware

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; 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.