David O Greenleaf, PH.D.

Primary specialty

Clinical PsychologistTaxonomy code 103TC0700X

License

3944 Issued in MA

Practice address

115 Mill St
Belmont, MA 02478-1041

Phone

(617) 855-2681

Fax

(617) 855-3722

NPI assigned

Jun 5, 2006

Last updated

Jul 13, 2026By the provider in NPPES

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

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in MA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: No
• Power mobility devices: No
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Clinical Psychologist

Education

Other, 1985

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Philosophy

State licenses

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

{
    "created_epoch": "1149465600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1275572430",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "115 MILL ST",
            "city": "BELMONT",
            "state": "MA",
            "postal_code": "024781041",
            "telephone_number": "617-855-2681",
            "fax_number": "617-855-3722"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "115 MILL ST",
            "city": "BELMONT",
            "state": "MA",
            "postal_code": "024781041",
            "telephone_number": "617-855-2681",
            "fax_number": "617-855-3722"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREENLEAF",
        "first_name": "DAVID",
        "middle_name": "O",
        "credential": "PH.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-05",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "MA",
            "license": "3944",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS",
            "identifier": "W03927",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Andrew T Gouse, MD
• James John Greaney Jr., PHARMD
• Mark Green, MD
• Sharon Greenfield, PSY.D.
• Shelly Faith Greenfield, M.D., MPH
• Allison Gregg
• Leslie Gregory
• David J Grelotti, M.D.
• Diane Lee Grimaldi, R.N., M.S., C.S.
• Tara Grimm, O.D.

• Clinical Psychologist in Belmont, MA
• Providers in Belmont, MA by specialty
• Clinical Psychologist in Massachusetts

• 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.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.