NPIMap

Individual provider Active NPI

Terence Lee Ahern, MD

  • Emergency Medicine Physician
  • Palo Alto, CA
National Provider Identifier
1104195916
Registry record updated Jul 5, 2024
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
A123764 Issued in CA
Practice address
300 Pasteur Dr
Palo Alto, CA 94304-2203
Phone
(650) 723-4000
NPI assigned
Dec 22, 2011
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 5, 2024

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X A123764 CA Primary
Emergency Medicine Physician 207P00000X M-13191 ID
Emergency Medicine Physician 207P00000X MD170843 OR

Addresses

Primary practice location

300 Pasteur Dr
Palo Alto, CA 94304-2203

Mailing address

300 Pasteur Dr
Palo Alto, CA 94304-2203
Phone (650) 723-4000

Other practice location 1

100 Hospital Drive
Ketchum, ID 83340
Phone (208) 727-8800

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA, HI2 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
I20140821002390 CA Practitioner - Emergency Medicine 3971721614 Reassigns benefits to 3 organizations
I20250911002416 HI Practitioner - Emergency Medicine 3971721614 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
Other, 2011
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Stanford Health CareGroup PAC ID 6709797491, 3,152 clinicians

Practice addresses (Care Compare)

300 Pasteur Dr
Stanford, CA 94305-2200
Phone (650) 723-4000

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A123764CAMDEmergency Medicine Physician
M-13191IDMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Stanford Health Care Emergency Medicine Current Accepting new patients
LPCH Medical Group Div of Lucile CurrentSince Apr 18, 2024 Accepting new patients
San Francisco Physicians International Medical Group, Inc Emergency Medicine CurrentSince Jun 1, 2022 Accepting new patients
Swope Medical Group Inc Emergency Medicine CurrentSince Sep 1, 2022 Accepting new patients
Hawaii Emergency Physicians Associated Inc Emergency Medicine CurrentSince Jul 1, 2025 Accepting new patients
Stanford Health Care CurrentSince Apr 18, 2024 Accepting new patients
Stanford Health Care CurrentSince Apr 18, 2024 Accepting new patients
Midpacific Hospitalists LLC Past Accepting new patients

Locations

155 Glasson Way
Grass Valley, CA 95945
Phone (530) 274-6000

300 Pasteur Dr
Palo Alto, CA 94304
Phone (650) 723-6469

725 Welch Rd
Palo Alto, CA 94304
Phone (650) 497-8979

6001 Norris Canyon Rd
San Ramon, CA 94583
Phone (925) 275-8273

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

1800 N California St
Stockton, CA 95204
Phone (209) 467-6400

640 Ulukahiki St
Kailua, HI 96734
Phone (808) 261-3326

67-1125 Mamalahoa Hwy
Kamuela, HI 96743
Phone (808) 881-4400

4401 W Memorial Rd
Ste 121
Oklahoma City, OK 73134
Phone (405) 749-4560

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 and National Provider Directory roles.

Hospital & facility affiliations 7

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": "1324512000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1720137600000",
    "number": "1104195916",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943042203",
            "telephone_number": "650-723-4000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943042203",
            "telephone_number": "650-723-4000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "100 Hospital Drive",
            "address_purpose": "LOCATION",
            "city": "Ketchum",
            "state": "ID",
            "postal_code": "83340",
            "country_code": "US",
            "telephone_number": "208-727-8800",
            "fax_number": "208-727-8124",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "AHERN",
        "first_name": "TERENCE",
        "middle_name": "LEE",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2011-12-22",
        "last_updated": "2024-07-05",
        "certification_date": "2024-07-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "A123764",
            "primary": true
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "ID",
            "license": "M-13191",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "OR",
            "license": "MD170843",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Palo Alto, CA

Sources for this page

Verify at the official NPI Registry.