Active NPI
Iona Machado, M.D.
- Psychiatry Physician
- San Francisco, CA
National Provider Identifier
1871025403
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychiatry Physician
- License
- 340521
- Practice address
- 582 Market St Ste 812
San Francisco, CA 94104-5309 - Phone
- (415) 922-9122
- NPI assigned
- Apr 2, 2017
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Psychiatry Physician | 2084P0800X | A157026 | CA | |
| Psychiatry Physician | 2084P0800X | 340521 | NY | Primary |
Addresses
Primary practice location
582 Market St Ste 812
San Francisco, CA 94104-5309
Mailing address
582 Market St Ste 812
San Francisco, CA 94104-5309
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Opted out of Medicare
- Yes, effective Nov 1, 2021 through Nov 1, 2027
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 340521 | NY | MD | Licensed Practical Nurse |
| A157026 | CA | MD | Psychiatry Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1491091200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1779408000000",
"number": "1871025403",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "582 MARKET ST STE 812",
"city": "SAN FRANCISCO",
"state": "CA",
"postal_code": "941045309"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "582 MARKET ST STE 812",
"city": "SAN FRANCISCO",
"state": "CA",
"postal_code": "941045309",
"telephone_number": "415-922-9122"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MACHADO",
"first_name": "IONA",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2017-04-02",
"last_updated": "2026-05-22",
"certification_date": "2026-05-22",
"status": "A"
},
"taxonomies": [
{
"code": "2084P0800X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Psychiatry",
"state": "CA",
"license": "A157026",
"primary": false
},
{
"code": "2084P0800X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Psychiatry",
"state": "NY",
"license": "340521",
"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 May 22, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Opt Out Affidavits.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.