Individual provider Active NPI

Heather Elaine Williams, PA

  • Physician Assistant
  • Jacksonville, FL
National Provider Identifier
1134437999
Registry record updated Jan 20, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
PA9105633 Issued in FL
Practice address
4500 San Pablo Rd S
Jacksonville, FL 32224-1865
Phone
(904) 953-2000
NPI assigned
Sep 15, 2010
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 20, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X PA9105633 FL Primary

Addresses

Primary practice location

4500 San Pablo Rd S
Jacksonville, FL 32224-1865

Mailing address

PO Box 860912
Minneapolis, MN 55486-0912

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address hwilliams2608941@ehrdirect.mayoclinicmsg.org

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in FL
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
I20101022001063 FL Practitioner - Physician Assistant 8123211059 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2010
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Mayo Clinic JacksonvilleGroup PAC ID 5698689297, 1,595 clinicians

Practice addresses (Care Compare)

4500 San Pablo Rd S
Jacksonville, FL 32224-1865
Phone (904) 953-2000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
81.01 of 100Reported as group
Quality
62.34
Promoting interoperability
95
Improvement activities
40
Cost
78.51

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Mayo Clinic Jacksonville CurrentSince Jan 5, 2026 Accepting new patients
Mayo Clinic Jacksonville CurrentSince Jan 5, 2026 Accepting new patients

Locations

4500 San Pablo Rd S
Jacksonville, FL 32224
Phone (904) 721-4815

655 W 8th St
Jacksonville, FL 32209
Phone (904) 244-1680

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 1

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": "1284508800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768867200000",
    "number": "1134437999",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 860912",
            "city": "MINNEAPOLIS",
            "state": "MN",
            "postal_code": "554860912"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4500 SAN PABLO RD S",
            "city": "JACKSONVILLE",
            "state": "FL",
            "postal_code": "322241865",
            "telephone_number": "904-953-2000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "HEATHER",
        "middle_name": "ELAINE",
        "credential": "PA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2010-09-15",
        "last_updated": "2026-01-20",
        "certification_date": "2026-01-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "FL",
            "license": "PA9105633",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "hwilliams2608941@ehrdirect.mayoclinicmsg.org",
            "affiliation": "N",
            "address_1": "4500 San Pablo Rd S",
            "city": "Jacksonville",
            "state": "FL",
            "country_code": "US",
            "postal_code": "322241865",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Jacksonville, FL

Sources for this page

Verify at the official NPI Registry.