Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Derk August Mueller, MD

Pediatric Critical Care Medicine Physician in Spokane, WA · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1992907208

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Registry record

Entity type Individual (Type 1)

Name Derk August Mueller

Credential MD

Sex Male

Practice address Spokane, WA, 99204

Phone (509) 474-5233

Enumeration date May 31, 2007

Last updated in NPPES Aug 6, 2010

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2080H0002X Pediatric Hospice and Palliative Medicine Physician Allopathic & Osteopathic Physicians · License 11012049A (IN) Secondary

2080P0203X Pediatric Critical Care Medicine Physician Allopathic & Osteopathic Physicians · License 60153803 (WA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify Derk Mueller's NPI record?

Cross-check NPI 1992907208 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1992907208 active?

Yes, as of the latest NPPES snapshot, NPI 1992907208 is active (record last updated 2010-08-06).

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Sandra Fornwalt Obstetrics Physician · Spokane, WA NPI 1588660427 Alva Childress Obstetrics & Gynecology Physician · Spokane, WA NPI 1467451906 Eric Anacker Internal Medicine Physician · Spokane, WA NPI 1033110911 Michael Leachman Ophthalmology Physician · Spokane, WA NPI 1538160460 Jeff Johnson Internal Medicine Physician · Spokane, WA NPI 1558353201 Judy Felgenhauer Pediatric Hematology & Oncology Physician · Spokane, WA NPI 1386631059 Angela Trobaugh-Lotrario Pediatric Hematology & Oncology Physician · Spokane, WA NPI 1215924782 Jason Brouillard Pharmacist · Spokane, WA NPI 1447248406

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-08-06.