Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Christopher D Willis, DO

Psychiatry Physician in Bolivar, MO · enumerated 2018.

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

National Provider Identifier

1922509074

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Registry record

Entity type Individual (Type 1)

Name Dr. Christopher D Willis

Credential DO

Sex Male

Practice address 1240 N Butterfield Rd, Bolivar, MO, 65613

Phone (417) 326-6021

Enumeration date Feb 23, 2018

Last updated in NPPES Jul 3, 2026

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License E-16311 (AR) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 2019037704 (MO) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Christopher Willis?

Christopher Willis is registered in NPPES with the primary taxonomy of Psychiatry Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Ronda Entlicher-Stewart Nurse Practitioner · Bolivar, MO NPI 1740262278 Bolivar Family Care Center, LLC Family Medicine Physician · Bolivar, MO NPI 1043265986 Mary Hogan Family Medicine Physician · Bolivar, MO NPI 1932147808 William Donnell Family Medicine Physician · Bolivar, MO NPI 1639191125 Ronald Evans Family Medicine Physician · Bolivar, MO NPI 1679595102 Laura Vance Family Medicine Physician · Bolivar, MO NPI 1225050784 Leigh O'Connor Medical Physician Assistant · Bolivar, MO NPI 1740202142 Louis Harris Family Medicine Physician · Bolivar, MO NPI 1922018076

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-03.