Individual provider Active NPI

Madelyn M Geary, PA-C

  • Physician Assistant
  • Palo Alto, CA
National Provider Identifier
1821645110
Registry record updated May 10, 2022
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
57067 Issued in CA
Practice address
725 Welch Rd
Palo Alto, CA 94304-1601
Phone
(650) 497-8000
NPI assigned
Aug 21, 2019
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 10, 2022

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X 085007244 IL
Student in an Organized Health Care Education/Training Program 390200000X
Physician Assistant 363A00000X 57067 CA Primary

Addresses

Primary practice location

725 Welch Rd
Palo Alto, CA 94304-1601

Mailing address

725 Welch Rd
Palo Alto, CA 94304-1601
Phone (650) 497-8000

Other practice location 1

635 N Fairbanks Ct
Chicago, IL 60611-5435
Phone (312) 694-2273

Other practice location 2

1333 W Belmont Ave Ste 100
Chicago, IL 60657-5785
Phone (312) 694-2273

Other practice location 3

171 N Aberdeen St Ste 100
Chicago, IL 60607-1671
Phone (312) 694-2273

Other practice location 4

635 N Dearborn St
Chicago, IL 60654-4618
Phone (227) 331-2694

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20220314000607 CA Practitioner - Physician Assistant 2062744659 Reassigns benefits to 2 organizations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
57067CAMDPhysician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Stanford Health Care CurrentSince Jul 26, 2025 Accepting new patients
Stanford Health Care CurrentSince Jul 26, 2025 Accepting new patients

Locations

300 Pasteur Dr
Stanford, CA 94305
Phone (650) 498-5710

Organizations & group practices 4

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.

NPI Registry JSON

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

{
    "created_epoch": "1566345600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1652140800000",
    "number": "1821645110",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "725 WELCH RD",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943041601",
            "telephone_number": "650-497-8000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "725 WELCH RD",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943041601",
            "telephone_number": "650-497-8000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "635 N Fairbanks Ct",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606115435",
            "country_code": "US",
            "telephone_number": "312-694-2273",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1333 W Belmont Ave Ste 100",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606575785",
            "country_code": "US",
            "telephone_number": "312-694-2273",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "171 N Aberdeen St Ste 100",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606071671",
            "country_code": "US",
            "telephone_number": "312-694-2273",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "635 N Dearborn St",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606544618",
            "country_code": "US",
            "telephone_number": "227-331-2694",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GEARY",
        "first_name": "MADELYN",
        "middle_name": "M",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-08-21",
        "last_updated": "2022-05-10",
        "certification_date": "2022-05-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "IL",
            "license": "085007244",
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "57067",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Palo Alto, CA

Sources for this page

Verify at the official NPI Registry.