Active NPI
Valerie Lynn Armstrong, MD
- Surgical Oncology Physician
- San Francisco, CA
National Provider Identifier
1871122911
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Surgical Oncology Physician
- License
- A208648
- Practice address
- 1600 Divisadero St FL 4
San Francisco, CA 94143-3010 - Phone
- (415) 353-7687
- NPI assigned
- Apr 1, 2020
- 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 4
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Surgery Physician | 208600000X | R78008 | AZ | |
| Surgery Physician | 208600000X | A208648 | CA | |
| Surgical Oncology Physician | 2086X0206X | A208648 | CA | Primary |
| Student in an Organized Health Care Education/Training Program | 390200000X |
Addresses
Primary practice location
1600 Divisadero St FL 4
San Francisco, CA 94143-3010
Mailing address
13400 E Shea Blvd
Scottsdale, AZ 85259-5452
Phone (480) 301-8000
Other practice location 1
13400 E Shea Blvd
Scottsdale, AZ 85259-5452
Phone (480) 301-8000
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | varmstrong1214268@ehrdirect.mayoclinicmsg.org |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20260530000377 | CA | Practitioner - General Surgery | 4385067487 |
Care Compare profile
Medicare Care Compare- Specialty
- General Surgery
- Education
- University of Miami, LM Miller School of Medicine, 2020
- Medicare assignment
- May accept Medicare assignment
Practice addresses (Care Compare)
1600 Divisadero St
FL 4
San Francisco, CA 94143-3066
490 Illinois St
FL 6
San Francisco, CA 94143-2510
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A208648 | CA | MD | Surgery Physician |
Hospital & facility affiliations 1
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": "1585699200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1778976000000",
"number": "1871122911",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "13400 E SHEA BLVD",
"city": "SCOTTSDALE",
"state": "AZ",
"postal_code": "852595452",
"telephone_number": "480-301-8000"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1600 DIVISADERO ST FL 4",
"city": "SAN FRANCISCO",
"state": "CA",
"postal_code": "941433010",
"telephone_number": "415-353-7687"
}
],
"practiceLocations": [
{
"address_1": "13400 E Shea Blvd",
"address_purpose": "LOCATION",
"city": "Scottsdale",
"state": "AZ",
"postal_code": "852595452",
"country_code": "US",
"telephone_number": "480-301-8000",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "ARMSTRONG",
"first_name": "VALERIE",
"middle_name": "LYNN",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2020-04-01",
"last_updated": "2026-05-17",
"certification_date": "2026-05-17",
"status": "A"
},
"taxonomies": [
{
"code": "208600000X",
"taxonomy_group": "",
"desc": "Surgery",
"state": "AZ",
"license": "R78008",
"primary": false
},
{
"code": "208600000X",
"taxonomy_group": "",
"desc": "Surgery",
"state": "CA",
"license": "A208648",
"primary": false
},
{
"code": "2086X0206X",
"taxonomy_group": "",
"desc": "Surgery, Surgical Oncology",
"state": "CA",
"license": "A208648",
"primary": true
},
{
"code": "390200000X",
"taxonomy_group": "",
"desc": "Student in an Organized Health Care Education/Training Program",
"state": null,
"license": null,
"primary": false
}
],
"identifiers": [],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "varmstrong1214268@ehrdirect.mayoclinicmsg.org",
"affiliation": "N",
"address_1": "13400 E Shea Blvd",
"city": "Scottsdale",
"state": "AZ",
"country_code": "US",
"postal_code": "852595452",
"country_name": "United States",
"address_type": "DOM"
}
],
"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 17, 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.