Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Douglas Isgrigg, CFA
Specialist in Tulsa, OK · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1174578959
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Registry record
Entity type Individual (Type 1)
Name Douglas Isgrigg
Credential CFA
Sex Male
Practice address 6802 S Olympia Ave, Ste 300, Tulsa, OK, 74132
Phone (918) 749-0762
Fax (918) 744-4246
Enumeration date May 23, 2006
Last updated in NPPES Aug 17, 2007
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| F01232 | Other | OK | STATE ID # |
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
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.
What specialty is Douglas Isgrigg?
Douglas Isgrigg is registered in NPPES with the primary taxonomy of Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-08-17.