Individual provider Active NPI

Charlotte O. Ladd, M.D., PH.D.

  • Psychiatry Physician
  • Madison, WI
National Provider Identifier
1225087091
Registry record updated Dec 8, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Psychiatry PhysicianTaxonomy code 2084P0800X
License
48134 Issued in WI
Practice address
6001 Research Park Blvd
Madison, WI 53719-1176
Phone
(608) 263-6100
NPI assigned
May 9, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 8, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Psychiatry Physician 2084P0800X 48134 WI Primary

Addresses

Primary practice location

6001 Research Park Blvd
Madison, WI 53719-1176

Mailing address

2229 Fox Ave
Madison, WI 53711-1922

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20251202001870 NY Practitioner - Psychiatry 5395846539 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Psychiatry
Education
Emory University School of Medicine, 2003
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

1425 Madison Ave
New York, NY 10029-6514
Phone (212) 824-8150

158 W 124TH St
New York, NY 10027-4919
Phone (212) 523-4000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
83.32 of 100Reported as group
Quality
87.78
Promoting interoperability
77
Improvement activities
40
Cost
75.8

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled
HHS exclusion list flag
Flagged The directory lists this NPI on an HHS exclusion list. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.
Credentials
Doctor of Medicine, Doctor of Philosophy

Practice roles

OrganizationSpecialtyStatusNew patients
Icahn School of Medicine at Mount Sinai CurrentSince Nov 20, 2025 Accepting new patients
Icahn School of Medicine at Mount Sinai CurrentSince Nov 20, 2025 Accepting new patients

Locations

2510 30th Ave
Long Island City, NY 11102
Phone (718) 267-4245

1425 Madison Ave
New York, NY 10029
Phone (212) 824-8150

Organizations & group practices 2

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.

Hospital & facility affiliations 2

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1147132800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765152000000",
    "number": "1225087091",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2229 FOX AVE",
            "city": "MADISON",
            "state": "WI",
            "postal_code": "537111922"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6001 RESEARCH PARK BLVD",
            "city": "MADISON",
            "state": "WI",
            "postal_code": "537191176",
            "telephone_number": "608-263-6100"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LADD",
        "first_name": "CHARLOTTE",
        "middle_name": "O.",
        "name_prefix": "Dr.",
        "credential": "M.D., PH.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-05-09",
        "last_updated": "2025-12-08",
        "certification_date": "2025-12-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "WI",
            "license": "48134",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Madison, WI

Sources for this page

Verify at the official NPI Registry.