Individual provider Active NPI

Sara J Grethlein, MD

  • Hematology & Oncology Physician
  • Seattle, WA
National Provider Identifier
1326083445
Registry record updated Nov 9, 2021
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology & Oncology PhysicianTaxonomy code 207RH0003X
License
MD61107310 Issued in WA
Practice address
1221 Madison St
2ND FL
Seattle, WA 98104-3588
Phone
(206) 386-2323
Fax
(206) 215-6165
NPI assigned
Jun 20, 2006
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
Medical Oncology Physician 207RX0202X MD61107310 WA
Hematology & Oncology Physician 207RH0003X MD61107310 WA Primary

Addresses

Primary practice location

1221 Madison St
2ND FL
Seattle, WA 98104-3588

Mailing address

PO Box 25608
Salt Lake City, UT 84125-0608
Phone (206) 320-4476

Other identifiers 2

IdentifierTypeStateIssuer
01498439MedicaidNY
201177200MedicaidIN

Other names 1

  • Sara J Friedman Former name

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address sgrethlein1427859@wm.providencedirect.org Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in AK
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
I20251220000547 AK Practitioner - Hematology/Oncology 3870635857 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Hematology/Oncology
Education
Other, 1988
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
PeacehealthGroup PAC ID 9436067618, 71 clinicians

Practice addresses (Care Compare)

3100 Tongass Ave
Ketchikan, AK 99901-5746
Phone (907) 228-8300

Hospital & facility affiliations

  • Peacehealth Ketchikan Medical Center Hospital, Ketchikan, AK, CCN 021311
  • Swedish Medical Center Hospital, Seattle, WA, CCN 500027

Merit-based Incentive Payment System (MIPS)

Final score
87.1 of 100Reported as group
Quality
84.53
Promoting interoperability
100
Improvement activities
40
Cost
72.46

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Peacehealth CurrentSince Dec 1, 2025 Accepting new patients
University Physiatric Associates, Inc. Past Accepting new patients
Major Hospital Past Accepting new patients
Ozarks Medical Center Past Accepting new patients

Locations

3100 Tongass Ave
Ketchikan, AK 99901
Phone (907) 225-4104

Organizations & group practices 4

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.

Hospital & facility affiliations 2

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": "1150761600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1636416000000",
    "number": "1326083445",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 25608",
            "city": "SALT LAKE CITY",
            "state": "UT",
            "postal_code": "841250608",
            "telephone_number": "206-320-4476",
            "fax_number": "206-568-7043"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1221 MADISON ST",
            "address_2": "2ND FL",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981043588",
            "telephone_number": "206-386-2323",
            "fax_number": "206-215-6165"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GRETHLEIN",
        "first_name": "SARA",
        "middle_name": "J",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-06-20",
        "last_updated": "2021-11-09",
        "certification_date": "2021-11-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "WA",
            "license": "MD61107310",
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "WA",
            "license": "MD61107310",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "01498439",
            "state": "NY"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "201177200",
            "state": "IN"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "sgrethlein1427859@wm.providencedirect.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "1221 Madison St",
            "address_2": "2nd Fl",
            "city": "Seattle",
            "state": "WA",
            "country_code": "US",
            "postal_code": "981043588",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "SARA",
            "last_name": "FRIEDMAN",
            "middle_name": "J",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Seattle, WA

Sources for this page

Verify at the official NPI Registry.