Peter James Schlegel, M.D.

Primary specialty

Medical Oncology PhysicianTaxonomy code 207RX0202X

License

MD00037257 Issued in WA

Practice address

401 W Poplar St
Walla Walla, WA 99362-2846

Phone

(509) 897-5700

Fax

(509) 897-5705

NPI assigned

Oct 21, 2005

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in WA

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

Specialty

Medical Oncology

Education

Rush Medical College of Rush University, 1994

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Providence Health and Services - WashingtonGroup PAC ID 2860552973, 266 clinicians

Cancer Care Northwest Centers P SGroup PAC ID 4688561939, 40 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Providence St Mary Medical Center Hospital, Walla Walla, WA, CCN 500002
• Prov Sacred HRT Med Ctr & Childs Hosp. Hospital, Spokane, WA, CCN 500054
• Kadlec Regional Medical Center Hospital, Richland, WA, CCN 500058

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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.

• Cancer Care Northwest Centers P S

  • Hematology & Oncology Physician
  • Spokane Valley, WA
  • NPI 1922072081

  Medical Oncology

  Medicare reassignment Care Compare group NPD
• Providence Health & Services - Washington

  • Family Medicine Physician
  • Walla Walla, WA
  • NPI 1922259738
  Medicare reassignment Care Compare group
• RCCH Trios Health LLC

  • Internal Medicine Physician
  • Kennewick, WA
  • NPI 1831682806
  Medicare reassignment NPD
• Cancer Care Northwest Centers P S

  • Non-Pharmacy Dispensing Site
  • Spokane, WA
  • NPI 1144900705
  NPD
• Medical Oncology Associates, PS

  • Radiation Oncology Physician
  • Spokane Valley, WA
  • NPI 1831524073
  NPD (past)
• Michael Kos MD, PS

  • Radiation Oncology Physician
  • Lewiston, ID
  • NPI 1528735917
  NPD (past)
• St. Joseph Hospital, LLC

  • Psychiatric Hospital Unit
  • Lewiston, ID
  • NPI 1205975851
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Kadlec Regional Medical Center

  • General Acute Care Hospital
  • Richland, WA
  • NPI 1972507580
  Care Compare affiliation
• Providence Health & Services - Wa

  • General Acute Care Hospital
  • Spokane, WA
  • NPI 1144471715
  Care Compare affiliation
• Providence Health & Services - Washington

  • General Acute Care Hospital
  • Walla Walla, WA
  • NPI 1386895886
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1129852800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786665600000",
    "number": "1891785838",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "401 W POPLAR ST",
            "city": "WALLA WALLA",
            "state": "WA",
            "postal_code": "993622846",
            "telephone_number": "509-897-5700",
            "fax_number": "509-897-5705"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "401 W POPLAR ST",
            "city": "WALLA WALLA",
            "state": "WA",
            "postal_code": "993622846",
            "telephone_number": "509-897-5700",
            "fax_number": "509-897-5705"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SCHLEGEL",
        "first_name": "PETER",
        "middle_name": "JAMES",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-10-21",
        "last_updated": "2026-08-14",
        "certification_date": "2026-08-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "WA",
            "license": "MD00037257",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kristin Marie Satterfield, MD
• Jon Paul Saunders
• Maria Carolina Sbodio, PT, DPT
• Alexander Shane Scalf, LSWAIC
• Carla Schettler
• Kurt J Schlicker, MD
• Audrey Brooke Schmid, M.S., CCC-SLP
• Joanne M Schmitz, M.D.
• Rosanne F Schneller, O.D.
• Luisa S Scholar, M.D.

• Medical Oncology Physician in Walla Walla, WA
• Providers in Walla Walla, WA by specialty
• Medical Oncology Physician in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 14, 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.

Verify at the official NPI Registry.