Individual provider Active NPI

Hashem Ayyad, M.D.

  • Anatomic Pathology & Clinical Pathology Physician
  • Sun City, AZ
National Provider Identifier
1891075172
Registry record updated May 5, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anatomic Pathology & Clinical Pathology PhysicianTaxonomy code 207ZP0102X
License
57974 Issued in AZ
Practice address
10401 W Thunderbird Blvd
Sun City, AZ 85351-3004
Phone
(602) 685-5211
Fax
(602) 685-5325
NPI assigned
Aug 18, 2011
Last updated
May 5, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 5, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X MD19976 RI
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X 57974 AZ Primary

Addresses

Primary practice location

10401 W Thunderbird Blvd
Sun City, AZ 85351-3004

Mailing address

PO Box 42210
Phoenix, AZ 85080-2210
Phone (623) 266-7770

Other practice location 1

825 Chalkstone Ave
Providence, RI 02908-4728
Phone (401) 456-2109

Other practice location 2

1493 Cambridge St
Cambridge, MA 02139-1099
Phone (617) 665-1846

Other identifiers 1

IdentifierTypeStateIssuer
534201MedicaidAZ

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in AZ, RI, MA, CT4 enrollments
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 4

Enrollment IDStateProvider typePAC IDDetails
I20190526000021 AZ Practitioner - PathologyPractitioner - Diagnostic Radiology 3870726375 Reassigns benefits to 2 organizations
I20240618001592 RI Practitioner - Pathology 3870726375 Reassigns benefits to 1 organization
I20240618001974 MA Practitioner - Pathology 3870726375 Reassigns benefits to 4 organizations
I20240813002146 CT Practitioner - Pathology 3870726375 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Pathology
Education
Other, 2007
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
University Pathologists, LLCGroup PAC ID 4981780061, 20 clinicians

Practice addresses (Care Compare)

1493 Cambridge St
Cambridge, MA 02139-1047
Phone (617) 665-1000

320 Pomfret St
Putnam, CT 06260-1836
Phone 86092865412452

363 Highland Ave
Fall River, MA 02720-3703
Phone (508) 679-7168

825 Chalkstone Ave
Providence, RI 02908-4728
Phone (401) 456-2109

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
94.64 of 100Reported as group
Quality
85
Improvement activities
40

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
57974AZMDAnatomic Pathology & Clinical Pathology Physician
MD19976RIMDAnatomic Pathology & Clinical Pathology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
The General Hospital Corporation CurrentSince Sep 29, 2025 Accepting new patients
Pathology Specialist of Arizona, LLP Anatomic Pathology & Clinical Pathology CurrentSince Jul 17, 2019 Accepting new patients
St Josephs Pathology Clinical Pathology CurrentSince Jun 1, 2019 Accepting new patients
Cambridge Public Health Commission Current Accepting new patients
University Pathologists, LLC Clinical Pathology CurrentSince Jun 25, 2024 Accepting new patients
Massachusetts General Physicians Organization Inc Anatomic Pathology & Clinical Pathology CurrentSince Sep 25, 2025 Accepting new patients
Cambridge Public Health Commission CurrentSince Jul 1, 2025 Accepting new patients
University Pathologists Diagnostics LLC PastSince Apr 20, 2021 Accepting new patients

Locations

7300 N 99th Ave
Glendale, AZ 85307
Phone (480) 339-5001

1400 S Dobson Rd
Mesa, AZ 85202
Phone (480) 412-3000

350 W Thomas Rd
Phoenix, AZ 85013
Phone (480) 339-5001

10401 W Thunderbird Blvd
Sun City, AZ 85351
Phone (623) 815-7690

14502 W Meeker Blvd
Sun City West, AZ 85375
Phone (623) 214-4000

1255 W Washington St
Tempe, AZ 85288
Phone 602685521145166

320 Pomfret St
Putnam, CT 06260
Phone (860) 963-6331

55 Fruit St
Boston, MA 02114

55 Fruit St
#2
Boston, MA 02114
Phone (617) 726-2967

1493 Cambridge St
Cambridge, MA 02139
Phone (617) 665-1185

103 Garland St
Everett, MA 02149
Phone (617) 381-7150

363 Highland Ave
Fall River, MA 02720
Phone (508) 679-7052

67 Slades Ferry Ave
Ste 6720
Somerset, MA 02726
Phone (401) 921-0252

825 Chalkstone Ave
Providence, RI 02908
Phone (401) 456-2000

Interoperability endpoints

  • Direct secure messaging: hayyad124387@direct.challiance.masshiway.net

Organizations & group practices 8

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 6

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": "1313625600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777939200000",
    "number": "1891075172",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 42210",
            "city": "PHOENIX",
            "state": "AZ",
            "postal_code": "850802210",
            "telephone_number": "623-266-7770",
            "fax_number": "623-322-4639"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "10401 W THUNDERBIRD BLVD",
            "city": "SUN CITY",
            "state": "AZ",
            "postal_code": "853513004",
            "telephone_number": "602-685-5211",
            "fax_number": "602-685-5325"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "825 Chalkstone Ave",
            "address_purpose": "LOCATION",
            "city": "Providence",
            "state": "RI",
            "postal_code": "029084728",
            "country_code": "US",
            "telephone_number": "401-456-2109",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1493 Cambridge St",
            "address_purpose": "LOCATION",
            "city": "Cambridge",
            "state": "MA",
            "postal_code": "021391099",
            "country_code": "US",
            "telephone_number": "617-665-1846",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "AYYAD",
        "first_name": "HASHEM",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2011-08-18",
        "last_updated": "2026-05-05",
        "certification_date": "2026-05-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207ZP0102X",
            "taxonomy_group": "",
            "desc": "Pathology, Anatomic Pathology & Clinical Pathology",
            "state": "RI",
            "license": "MD19976",
            "primary": false
        },
        {
            "code": "207ZP0102X",
            "taxonomy_group": "",
            "desc": "Pathology, Anatomic Pathology & Clinical Pathology",
            "state": "AZ",
            "license": "57974",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "534201",
            "state": "AZ"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Sun City, AZ

Sources for this page

Verify at the official NPI Registry.