Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

PETER JAMES SCHLEGEL M.D.
NPI 1891785838
Internal Medicine - Medical Oncology in Walla Walla, WA

Active since October 21, 2005PECOS EnrolledAccepts Medicare Assignment
401 W POPLAR ST, WALLA WALLA, WA 99362(509) 897-5700(509) 897-5705 Get Directions Write a Review

NPPES record last updated: August 14, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 14, 2026, Mar 24, 2017, Jul 12, 2016 (3 updates tracked since 2016).

About Peter James Schlegel M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

PETER JAMES SCHLEGEL M.D. (NPI 1891785838) is an individual medical oncology provider in Walla Walla, Washington, licensed in Washington (MD00037257) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with Providence St Mary Medical Center, and is a graduate of Rush Medical College Of Rush University (1994).

NPPES Registry Identity

NPI1891785838
Entity TypeIndividualMale
Primary Taxonomy207RX0202X
Provider Legal NamePETER JAMES SCHLEGELCredential: M.D.
Location Address401 W POPLAR STWalla Walla, WA 99362-2846
Mailing Address401 W Poplar StWalla Walla, WA 99362-2846 · (509) 897-5700 · Fax (509) 897-5705
Fax(509) 897-5705
Sole ProprietorNo
Medical School CMSRush Medical College Of Rush UniversityGraduated 1994
Enumeration DateOctober 21, 2005
Last NPPES UpdateAugust 14, 20263 updates tracked since enumeration
NPPES CertifiedAugust 14, 2026
NPI 1891785838 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License Licensed in WA · MD00037257
Definition
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
401 W POPLAR ST, Walla Walla, WA 99362

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Peter James Schlegel M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8224110747
PECOS Enrollment IDI20081027000312
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Providence St Mary Medical Center

Acute Care Hospitals · Walla Walla, WA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500002
Location401 W Poplar StWalla Walla, WA 99362 · Walla Walla County
Emergency services Birthing friendly

Prov Sacred Hrt Med Ctr & Childs Hosp.

Acute Care Hospitals · Spokane, WA
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number500054
Location101 West 8th AvenueSpokane, WA 99204 · Spokane County
Emergency services Birthing friendly

Kadlec Regional Medical Center

Acute Care Hospitals · Richland, WA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500058
Location888 Swift BlvdRichland, WA 99352 · Benton County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 99362 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$172.80 typical visit price
range $57.27 – $172.80
Typical copayment $43.20 (range $14.31 – $43.20)
Most-billed visit code 99205
Established Patient
$100.78 typical visit price
range $18.56 – $141.11
Typical copayment $25.19 (range $4.64 – $35.27)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Documentation of Current Medications in the Medical Record
Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.
36%2,576 patients1/55-star benchmark: 100%
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
82%1,226 patients3/55-star benchmark: 100%
Falls: Screening for Future Fall Risk
Percentage of patients 65 years of age and older who were screened for future fall risk during the measurement period
100%314 patients5/55-star benchmark: 99%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
81%327 patients3/55-star benchmark: 100%
Oncology: Medical and Radiation - Pain Intensity Quantified
Percentage of patient visits, regardless of patient age, with a diagnosis of cancer currently receiving chemotherapy or radiation therapy in which pain intensity is quantified
99%793 patients4/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
38%1,237 patients2/55-star benchmark: 99%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
61%564 patients3/55-star benchmark: 97%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Percentage of patients aged 18 years and older who were screened for tobacco use one or more times within 24 months AND who received tobacco cessation intervention if identified as a tobacco user
Patients screenedForUse: 90% · 366 patients
Patients tobacco: 79% · 366 patients
10%49 patients1/55-star benchmark: 98%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
63%1,237 patients3/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
1%1,237 patients1/55-star benchmark: 59%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner
401 W POPLAR ST, SLEEP MEDICINE CENTER
WALLA WALLA, WA 99362
Registered Nurse
401 W POPLAR ST
WALLA WALLA, WA 99362
Anesthesiology
401 W POPLAR ST
WALLA WALLA, WA 99362
Pharmacist
401 W POPLAR ST
WALLA WALLA, WA 99362
Occupational Therapist
401 W POPLAR ST
WALLA WALLA, WA 99362
Occupational Therapy Assistant
401 W POPLAR ST, REBAB SERVICE
WALLA WALLA, WA 99362
Physical Medicine & Rehabilitation
401 W POPLAR ST
WALLA WALLA, WA 99362
Emergency Medicine
401 W POPLAR ST, PSMMC ER
WALLA WALLA, WA 99362

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Peter Schlegel's NPI number?

The NPI number for Peter Schlegel is 1891785838. It was assigned to this individual provider in the NPPES registry on October 21, 2005.

Where is Peter Schlegel located?

Peter Schlegel practices at 401 W Poplar St, Walla Walla, WA 99362. The listed phone number is (509) 897-5700.

What is Peter Schlegel's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is Peter Schlegel enrolled in Medicare?

Yes. Peter Schlegel is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Peter Schlegel accept?

Health plans from PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Peter Schlegel as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Peter Schlegel affiliated with any hospitals?

According to CMS data, Peter Schlegel is affiliated with Providence St Mary Medical Center, Prov Sacred Hrt Med Ctr & Childs Hosp. and Kadlec Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Peter Schlegel was last updated on August 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.