Active NPI
Yousif Ahmad, MD, PHD
- Interventional Cardiology Physician
- San Francisco, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Interventional Cardiology Physician
- License
- SPI840
- Practice address
- 505 Parnassus Ave
San Francisco, CA 94143-2204 - Phone
- (415) 353-2873
- NPI assigned
- Feb 12, 2019
- Last updated
- Dec 4, 2025
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Interventional Cardiology Physician | 207RI0011X | SPI840 | CA | Primary |
Addresses
Primary practice location
505 Parnassus Ave
San Francisco, CA 94143-2204
Mailing address
505 Parnassus Ave
San Francisco, CA 94143-2204
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in NY, CT, CA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 3
Care Compare profile
Medicare Care Compare- Specialty
- Cardiovascular Disease (Cardiology)
- Education
- Other, 2009
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
2330 Post St
San Francisco, CA 94115-3465
Phone (415) 476-4029
400 Parnassus Ave
San Francisco, CA 94143-2202
505 Parnassus Ave
San Francisco, CA 94143-2204
Phone (415) 476-1000
521 Parnassus Ave
San Francisco, CA 94143-2204
Phone (415) 476-1000
Hospital & facility affiliations
Merit-based Incentive Payment System (MIPS)
- Final score
- 100 of 100
- Quality
- 95
- Improvement activities
- 40
- Cost
- 80.65
Merit-based Incentive Payment System (MIPS)
- Final score
- 84.89 of 100
- Quality
- 81.13
- Improvement activities
- 40
- Cost
- 71.5
Merit-based Incentive Payment System (MIPS)
- Final score
- 87.36 of 100
- Quality
- 77.36
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 74.27
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Coronary angioplasty and stenting | 158 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine, Doctor of Philosophy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| SPI840 | CA | MD | Interventional Cardiology Physician |
Practice roles
Locations
2001 The Embarcadero
Ste 1500
San Francisco, CA 94143
Phone (415) 353-1606
2330 Post St
San Francisco, CA 94115
Phone (415) 502-4444
400 Parnassus Ave
#A632
San Francisco, CA 94143
Phone (415) 473-1000
505 Parnassus Ave
San Francisco, CA 94143
Phone (415) 476-9058
135 College St
Ste 101
New Haven, CT 06510
50 Division St
New Haven, CT 06511
Phone (203) 785-2140
800 Howard Ave
New Haven, CT 06519
Phone (203) 785-2140
400 Kelby St
Fl 7
Fort Lee, NJ 07024
161 Fort Washington Ave
New York, NY 10032
Phone (212) 305-8559
Interoperability endpoints
- https://epicproxy-pub.et1089.epichosted.com/FHIRProxy/api/FHIR/DSTU2/
- https://epicproxy-pub.et1089.epichosted.com/FHIRProxy/api/FHIR/R4/
- yahmad374221@direct-ucsfmedicalcenter.org
Organizations & group practices 13
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.
-
dba UCSF Dept of Medicine General Medicine
- Internal Medicine Physician
- San Francisco, CA
- NPI 1760552343
Cardiovascular Disease
-
- Internal Medicine Physician
- San Francisco, CA
- NPI 1477624104
-
dba UCSF Pediatrics Group
- Pediatrics Physician
- San Francisco, CA
- NPI 1861578973
-
- Surgery Physician
- New York, NY
- NPI 1508266347
-
dba UCSF Orthotic and Prosthetic Center - Gateway Medical Building
- Health Service Clinic/Center
- San Francisco, CA
- NPI 1194115246
-
dba UCSF Medical Center
- Internal Medicine Physician
- San Francisco, CA
- NPI 1164512851
Cardiovascular Disease
-
dba UCSF Outpatient Pharmacy at Parnassus
- Community/Retail Pharmacy
- San Francisco, CA
- NPI 1659141711
-
- Internal Medicine Physician
- New York, NY
- NPI 1699289488
-
- Internal Medicine Physician
- New York, NY
- NPI 1861907321
-
- Durable Medical Equipment & Medical Supplies
- Fairfield, CT
- NPI 1548066962
-
dba UCSF Department of Medicine Rheumatology
- Rheumatology Physician
- San Francisco, CA
- NPI 1881763597
Hospital & facility affiliations 2
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba Alta Bates Summit Medical Center - Alta Bates Campus
- General Acute Care Hospital
- Berkeley, CA
- NPI 1639523004
-
dba UCSF Medical Center
- General Acute Care Hospital
- San Francisco, CA
- NPI 1689772592
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1549929600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1764806400000",
"number": "1447716725",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "505 PARNASSUS AVE",
"city": "SAN FRANCISCO",
"state": "CA",
"postal_code": "941432204"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "505 PARNASSUS AVE",
"city": "SAN FRANCISCO",
"state": "CA",
"postal_code": "941432204",
"telephone_number": "415-353-2873"
}
],
"practiceLocations": [],
"basic": {
"last_name": "AHMAD",
"first_name": "YOUSIF",
"name_prefix": "Dr.",
"credential": "MD, PHD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2019-02-12",
"last_updated": "2025-12-04",
"certification_date": "2025-12-04",
"status": "A"
},
"taxonomies": [
{
"code": "207RI0011X",
"taxonomy_group": "",
"desc": "Internal Medicine, Interventional Cardiology",
"state": "CA",
"license": "SPI840",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in San Francisco, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 4, 2025; 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.