Individual provider Active NPI

Yao Yao Guan Pollock, MD

  • Hematology & Oncology Physician
  • Santa Rosa, CA
National Provider Identifier
1154692549
Registry record updated Nov 9, 2021
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology & Oncology PhysicianTaxonomy code 207RH0003X
License
A147607 Issued in CA
Practice address
3555 Round Barn Cir
Santa Rosa, CA 95403-1757
Phone
(707) 528-1050
Fax
(707) 525-3874
NPI assigned
Jan 18, 2012
Last updated
Nov 9, 2021By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 9, 2021

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Geriatric Medicine (Internal Medicine) Physician 207RG0300X A147607 CA
Hematology & Oncology Physician 207RH0003X A147607 CA Primary

Addresses

Primary practice location

3555 Round Barn Cir
Santa Rosa, CA 95403-1757

Mailing address

3555 Round Barn Cir
Santa Rosa, CA 95403-1757
Phone (707) 528-1050

Other practice location 1

301 Mason Lord Drive
Baltimore, MD 21224
Phone (410) 550-0530

Other names 1

  • Yaoyao Guan Former name

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address ypollock1658165@oc.providencedirect.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
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20200813000703 CA Practitioner - Hematology/OncologyPractitioner - Geriatric Medicine 2961798269 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Hematology/OncologyAlso: Geriatric Medicine
Education
Johns Hopkins University School of Medicine, 2013
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Providence Medical FoundationGroup PAC ID 8921993205, 1,461 clinicians
Sutter Bay Medical FoundationGroup PAC ID 4284538778, 3,783 clinicians

Practice addresses (Care Compare)

3555 Round Barn Cir
Santa Rosa, CA 95403-1757
Phone (707) 528-1050

3883 Airway Dr
Suite 320
Santa Rosa, CA 95403-1671
Phone (707) 521-7750

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A147607CAMDHematology & Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Sutter Bay Medical Foundation CurrentSince Jan 1, 2026 Accepting new patients
Providence Medical Foundation Current Accepting new patients
Providence Medical Foundation CurrentSince Aug 17, 2020 Accepting new patients
Sutter Bay Medical Foundation CurrentSince Jan 1, 2026 Accepting new patients
Providence Medical Foundation CurrentSince Aug 17, 2020 Accepting new patients
Sutter Bay Medical Foundation Past Accepting new patients
St. Joseph Health Northern California, LLC Past Accepting new patients

Locations

200 W Ctr St Promenade
Ste 300
Anaheim, CA 92805
Phone (714) 449-4841

18400 US Highway 18
Apple Valley, CA 92307
Phone (760) 810-7590

350 John Muir Pkwy
Ste 160
Brentwood, CA 94513
Phone (925) 204-1920

1950 University Ave
Ste 160
East Palo Alto, CA 94303
Phone (650) 317-8100

3200 Kearney St
Fremont, CA 94538
Phone (510) 498-2800

1189 E Herndon Ave
Ste 103
Fresno, CA 93720
Phone (559) 450-7777

2501 W La Habra Blvd
La Habra, CA 90631

370 Distel Cir
Los Altos, CA 94022
Phone (650) 254-5200

600 Coffee Rd
Modesto, CA 95355
Phone (209) 550-4755

101 Rowland Way
Ste 220
Novato, CA 94945
Phone (415) 878-7200

795 El Camino Real
Palo Alto, CA 94301
Phone (650) 324-1832

1555 East St
Ste 200
Redding, CA 96001
Phone (530) 229-0911

151 N Sunrise Ave
Ste 1205
Roseville, CA 95661
Phone (916) 780-0110

3838 California St
Rm 410
San Francisco, CA 94118
Phone (415) 751-1847

123 S San Mateo Dr
San Mateo, CA 94401
Phone (650) 343-4200

1165 Montgomery Dr
#1112
Santa Rosa, CA 95405
Phone (707) 546-3210

3555 Round Barn Cir
Santa Rosa, CA 95403
Phone (707) 528-1050

3883 Airway Dr
Ste 220
Santa Rosa, CA 95403
Phone (707) 521-7750

3883 Airway Dr
Ste 320
Santa Rosa, CA 95403
Phone (707) 521-7750

500 Doyle Park Dr
Ste 100
Santa Rosa, CA 95405
Phone (714) 449-4842

10200 Trinity Pkwy
Ste 101
Stockton, CA 95219
Phone (209) 323-3488

550 S Green Valley Rd
Watsonville, CA 95076
Phone (831) 458-5865

Interoperability endpoints

  • Direct secure messaging: yaoyao.pollock@stjoe.direct.varian.com
  • Direct secure messaging: ypollock1658165@oc.providencedirect.org

Organizations & group practices 7

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.

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": "1326844800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1636416000000",
    "number": "1154692549",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3555 ROUND BARN CIR",
            "city": "SANTA ROSA",
            "state": "CA",
            "postal_code": "954031757",
            "telephone_number": "707-528-1050",
            "fax_number": "707-525-3874"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3555 ROUND BARN CIR",
            "city": "SANTA ROSA",
            "state": "CA",
            "postal_code": "954031757",
            "telephone_number": "707-528-1050",
            "fax_number": "707-525-3874"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "301 Mason Lord Drive",
            "address_purpose": "LOCATION",
            "city": "Baltimore",
            "state": "MD",
            "postal_code": "21224",
            "country_code": "US",
            "telephone_number": "410-550-0530",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "POLLOCK",
        "first_name": "YAO YAO",
        "middle_name": "GUAN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2012-01-18",
        "last_updated": "2021-11-09",
        "certification_date": "2021-11-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Geriatric Medicine",
            "state": "CA",
            "license": "A147607",
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "CA",
            "license": "A147607",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "ypollock1658165@oc.providencedirect.org",
            "affiliation": "N",
            "address_1": "3555 Round Barn Cir",
            "city": "Santa Rosa",
            "state": "CA",
            "country_code": "US",
            "postal_code": "954031757",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "YAOYAO",
            "last_name": "GUAN",
            "credential": "MD",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Santa Rosa, CA

Sources for this page

Verify at the official NPI Registry.