Active NPI
Aijaz Ahmed, MD
- Hepatology Physician
- Stanford, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Hepatology Physician
- License
- A60520
- Practice address
- 300 Pasteur Dr
Stanford, CA 94305-2200 - Phone
- (650) 723-4000
- NPI assigned
- Sep 26, 2006
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 4
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Gastroenterology Physician | 207RG0100X | A60520 | CA | |
| Hepatology Physician | 207RI0008X | A60520 | CA | Primary |
| Obesity Medicine (Family Medicine) Physician | 207QB0002X | A60520 | CA | |
| Transplant Hepatology Physician | 207RT0003X | A60520 | CA |
Addresses
Primary practice location
300 Pasteur Dr
Stanford, CA 94305-2200
Mailing address
300 Pasteur Dr
Stanford, CA 94305-2200
Phone (650) 723-4000
Other practice location 1
1255 Las Tablas Rd Ste 201
Templeton, CA 93465-9750
Phone (805) 739-3890
Other practice location 2
1551 Bishop St Ste 510
San Luis Obispo, CA 93401-4665
Phone (805) 434-5530
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 00A605200 | Medicaid | CA |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in NV, CA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Gastroenterology
- Education
- Other, 1990
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
1310 Las Tablas Rd
Suite 204
Templeton, CA 93465-9747
Phone (805) 434-3458
170 Alameda de Las Pulgas
Redwood City, CA 94062-2751
Phone (650) 369-5811
2585 Samaritan Dr
San Jose, CA 95124-4107
Phone (650) 723-4000
300 Pasteur Dr
Stanford, CA 94305-2200
Phone (650) 723-4000
420 Broadway St
Redwood City, CA 94063-3132
Phone (650) 723-4000
450 Broadway St
Redwood City, CA 94063-3132
Phone (650) 723-4000
5555 W Las Positas Blvd
Pleasanton, CA 94588-4000
Phone (925) 847-3000
5565 W Las Positas Blvd
Suite 150
Pleasanton, CA 94588-5805
Phone (650) 723-4000
5800 Hollis St
Emeryville, CA 94608-2016
Phone (510) 806-2100
Hospital & facility affiliations
- Stanford Health Care
- Marian Regional Medical Center
- French Hospital Medical Center
- Renown Regional Medical Center
- Adventist Health Twin Cities
Merit-based Incentive Payment System (MIPS)
- Final score
- 88.53 of 100
- Quality
- 87.08
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 69.51
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Colonoscopy | 1-10 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 1-10 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A60520 | CA | MD | Transplant Hepatology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| County of Santa Clara | Current | Accepting new patients | |
| County of Santa Clara | Current | Accepting new patients | |
| Stanford Health Care | Current | Accepting new patients | |
| County of Santa Clara | Current | Accepting new patients | |
| Stanford Health Care | Current | Accepting new patients | |
| The Hospital Committee for the Livermore-Pleasanton Areas | Past | Accepting new patients | |
| Stanford Health Care Tri-Valley | Past | Accepting new patients | |
| Stanford Hospital and Clinics | Past | Accepting new patients | |
| Barton Healthcare System | Past | Accepting new patients | |
| Pacific Central Coast Health Centers | Past | Accepting new patients | |
| Lucile Salter Packard Children'S Hospital at Stanford | Past | Accepting new patients | |
| County of Santa Clara | Past | Accepting new patients |
Locations
7710 N Fresno St
Ste 102
Fresno, CA 93720
Phone (559) 437-9100
7999 Gateway Blvd
Ste 200
Newark, CA 94560
Phone (510) 806-2947
450 Broadway St
Redwood City, CA 94063
Phone (650) 723-5643
450 Broadway St
Fl 2
Redwood City, CA 94063
Phone (650) 498-3931
751 S Bascom Ave
San Jose, CA 95128
Phone (408) 885-5110
525 Plaza Dr
Ste 307
Santa Maria, CA 93454
Phone (805) 434-3458
361 Town Ctr W
Santa Maria, CA 93458
Phone (805) 922-6581
300 Pasteur Dr
#5500
Stanford, CA 94305
Phone (415) 723-5525
300 Pasteur Dr
Stanford, CA 94305
Phone (650) 498-5710
1255 Las Tablas Rd
Ste 201
Templeton, CA 93465
Phone (805) 434-0339
1310 Las Tablas Rd
Ste 204
Templeton, CA 93465
Phone (805) 434-0333
10001 S Eastern Ave
Ste 408
Henderson, NV 89052
Phone (702) 263-0117
Interoperability endpoints
- aahmed36809@direct.stanfordhealthcare.org
Organizations & group practices 12
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.
-
- Mental Health Clinic/Center (Including Community Mental Health Center)
- San Jose, CA
- NPI 1699885079
-
- Anesthesiology Physician
- San Jose, CA
- NPI 1588721500
-
- Pharmacy
- San Jose, CA
- NPI 1891871919
-
- Specialty Pharmacy
- Mountain View, CA
- NPI 1760366132
-
- Home Health Agency
- South Lake Tahoe, CA
- NPI 1356348890
-
- General Acute Care Hospital
- San Jose, CA
- NPI 1063406551
-
- Children's Hospital
- Palo Alto, CA
- NPI 1467442749
-
- Community Health Clinic/Center
- Bakersfield, CA
- NPI 1720752355
-
- General Acute Care Hospital
- Pleasanton, CA
- NPI 1144389941
-
- Clinical Medical Laboratory
- Palo Alto, CA
- NPI 1174698468
-
- Rehabilitation Hospital Unit
- Livermore, CA
- NPI 1427117233
Hospital & facility affiliations 12
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- San Luis Obispo, CA
- NPI 1881760452
-
- General Acute Care Hospital
- Santa Maria, CA
- NPI 1760510937
-
- General Acute Care Hospital
- Emeryville, CA
- NPI 1275076325
-
- General Acute Care Hospital
- Emeryville, CA
- NPI 1285177337
-
- General Acute Care Hospital
- Stanford, CA
- NPI 1437292927
-
- General Acute Care Hospital
- Pleasanton, CA
- NPI 1467990465
-
- General Acute Care Hospital
- Stanford, CA
- NPI 1871543215
-
- General Acute Care Hospital
- Templeton, CA
- NPI 1396778197
-
- General Acute Care Hospital
- Reno, NV
- NPI 1124098421
-
- General Acute Care Hospital
- Sparks, NV
- NPI 1932517299
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1159228800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1788393600000",
"number": "1447351747",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "300 PASTEUR DR",
"city": "STANFORD",
"state": "CA",
"postal_code": "943052200",
"telephone_number": "650-723-4000"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "300 PASTEUR DR",
"city": "STANFORD",
"state": "CA",
"postal_code": "943052200",
"telephone_number": "650-723-4000"
}
],
"practiceLocations": [
{
"address_1": "1255 Las Tablas Rd Ste 201",
"address_purpose": "LOCATION",
"city": "Templeton",
"state": "CA",
"postal_code": "934659750",
"country_code": "US",
"telephone_number": "805-739-3890",
"fax_number": "805-434-0023",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "1551 Bishop St Ste 510",
"address_purpose": "LOCATION",
"city": "San Luis Obispo",
"state": "CA",
"postal_code": "934014665",
"country_code": "US",
"telephone_number": "805-434-5530",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "AHMED",
"first_name": "AIJAZ",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-09-26",
"last_updated": "2026-09-03",
"certification_date": "2026-09-03",
"status": "A"
},
"taxonomies": [
{
"code": "207RG0100X",
"taxonomy_group": "",
"desc": "Internal Medicine, Gastroenterology",
"state": "CA",
"license": "A60520",
"primary": false
},
{
"code": "207RI0008X",
"taxonomy_group": "",
"desc": "Internal Medicine, Hepatology",
"state": "CA",
"license": "A60520",
"primary": true
},
{
"code": "207QB0002X",
"taxonomy_group": "",
"desc": "Family Medicine, Obesity Medicine",
"state": "CA",
"license": "A60520",
"primary": false
},
{
"code": "207RT0003X",
"taxonomy_group": "",
"desc": "Internal Medicine, Transplant Hepatology",
"state": "CA",
"license": "A60520",
"primary": false
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "00A605200",
"state": "CA"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Stanford, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 3, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.