Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John Harbin Chelf, RN
Registered Nurse in Boley, OK · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1477997740
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Registry record
Entity type Individual (Type 1)
Name John Harbin Chelf
Credential RN
Sex Male
Practice address Rt 1, Box 35d, Boley, OK, 74829
Phone (918) 667-3367
Fax (918) 667-3387
Enumeration date Apr 17, 2013
Last updated in NPPES Apr 17, 2013
Taxonomy & licenses
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam.
About the RN credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 100685660D | Medicaid | OK | - |
| 100685660A | Medicaid | OK | - |
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.
Frequently asked questions
What specialty is John Chelf?
John Chelf is registered in NPPES with the primary taxonomy of Registered Nurse. 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
Browse all → Donna Magness Mental Health Counselor · Boley, OK NPI 1164753604 Michelle Brown Case Manager/Care Coordinator · Boley, OK NPI 1164741245 Darletta Hinds Case Manager/Care Coordinator · Boley, OK NPI 1346547452 Brian Moore Case Manager/Care Coordinator · Boley, OK NPI 1396099271 Rebekah Terrell Case Manager/Care Coordinator · Boley, OK NPI 1710220728 Brandi Cummings Case Manager/Care Coordinator · Boley, OK NPI 1366880619 Terri Burkhart Registered Nurse · Boley, OK NPI 1881022465 Brett Alford Case Manager/Care Coordinator · Boley, OK NPI 1952772980
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-04-17.