NPIMap

Individual provider Active NPI

Ahmer Ishtiaq, MD

  • Internal Medicine Physician
  • Worcester, MA
National Provider Identifier
1508205535
Registry record updated Jul 28, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
269054 Issued in MA
Practice address
123 Summer St
Worcester, MA 01608-1216
Phone
(508) 363-6849
NPI assigned
Jun 24, 2013
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 28, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Hospitalist Physician 208M00000X V3617 TX
Internal Medicine Physician 207R00000X 269054 MA Primary

Addresses

Primary practice location

123 Summer St
Worcester, MA 01608-1216

Mailing address

477 Johnson Ave
Ronkonkoma, NY 11779-6120
Phone (347) 553-5056

Other practice location 1

40 Wright Street
Palmer, MA 01069-1138
Phone (413) 794-6297

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY, TX2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20190104000974 NY Practitioner - Internal Medicine 4385924216 Reassigns benefits to 4 organizations
I20250605003804 TX Practitioner - Internal Medicine 4385924216 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Other, 2008
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Hospitalist Medicine Physicians of Texas PLLCGroup PAC ID 3476688318, 685 clinicians
Quantum Emergency Physicians PAGroup PAC ID 1153414503, 79 clinicians

Practice addresses (Care Compare)

11801 S Fwy
I 35W
Burleson, TX 76028-7021
Phone (817) 293-9110

1501 Burnet Rd
Brownwood, TX 76801-8520
Phone (865) 560-8423

Hospital & facility affiliations

  • Hendrick Medical Center Brownwood Hospital, Brownwood, TX, CCN 450587
  • Texas Health Huguley Hospital Fort Worth South Hospital, Fort Worth, TX, CCN 450677
  • Eastland Memorial Hospital Hospital, Eastland, TX, CCN 450411
  • Comanche County Medical Center Hospital, Comanche, TX, CCN 451382

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Scott & White Clinic Internal Medicine CurrentSince Jul 17, 2025 Accepting new patients
Delphi Hospitalist Services LLC Hospitalist CurrentSince Jan 1, 2019 Accepting new patients
Hospitalist Medicine Physicians of New York, PLLC CurrentSince Jan 1, 2022 Accepting new patients
Carthage Area Hospital Inc CurrentSince Apr 1, 2019 Accepting new patients
Quantum Emergency Physicians PA Internal Medicine CurrentSince Apr 29, 2025 Accepting new patients
Starmd Internal Medicine Current Accepting new patients
Carthage Area Hospital Inc CurrentSince Apr 1, 2019 Accepting new patients
Scott & White Clinic Internal Medicine CurrentSince Jul 17, 2025 Accepting new patients
Optcare LLC Internal Medicine Current Accepting new patients
Cogent Medical Care PC Internal Medicine CurrentSince Sep 28, 2019 Accepting new patients
Scott & White Clinic Internal Medicine Current Accepting new patients
Ector County Hospital District Past Accepting new patients
Long Island Community Hospital at NYU Langone Health Past Accepting new patients
Hendrick Medical Center Brownwood Past Accepting new patients
Scott & White Hospital - Taylor Past Accepting new patients

Locations

169 Riverside Dr
Binghamton, NY 13905
Phone (607) 798-5111

565 Abbott Rd
Rm 8632
Buffalo, NY 14220
Phone (607) 798-5671

1001 West St
Carthage, NY 13619
Phone (315) 493-1000

101 Hospital Rd
Patchogue, NY 11772
Phone (631) 654-7100

160 E Main St
Port Jervis, NY 12771
Phone (845) 856-7000

191 N Main St
Wellsville, NY 14895
Phone (585) 593-1100

1900 Pine St
Abilene, TX 79601
Phone (325) 670-4220

700 Medical Pkwy
Brenham, TX 77833
Phone (979) 337-5000

1501 Burnet Rd
Brownwood, TX 76801
Phone (325) 646-8541

1280 Arrington Rd
Ste 200
College Station, TX 77845
Phone (979) 207-6550

2401 S 31st St
Temple, TX 76508
Phone (254) 724-2459

2401 S 31st St
#200
Temple, TX 76508
Phone (254) 215-0100

Interoperability endpoints

  • Direct secure messaging: aishtiaq@hiemail.healtheconnections.org
  • Direct secure messaging: aishtiaq38870@direct.southcoast.org

Organizations & group practices 17

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.

View all 17

Hospital & facility affiliations 5

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": "1372032000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753660800000",
    "number": "1508205535",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "477 JOHNSON AVE",
            "city": "RONKONKOMA",
            "state": "NY",
            "postal_code": "117796120",
            "telephone_number": "347-553-5056"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "123 SUMMER ST",
            "city": "WORCESTER",
            "state": "MA",
            "postal_code": "016081216",
            "telephone_number": "508-363-6849"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "40 Wright Street",
            "address_purpose": "LOCATION",
            "city": "Palmer",
            "state": "MA",
            "postal_code": "010691138",
            "country_code": "US",
            "telephone_number": "413-794-6297",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ISHTIAQ",
        "first_name": "AHMER",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2013-06-24",
        "last_updated": "2025-07-28",
        "certification_date": "2025-07-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "TX",
            "license": "V3617",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "269054",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Worcester, MA

Sources for this page

Verify at the official NPI Registry.