NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Darrell Heck, M.D.

Anesthesiology Physician in Tulsa, OK · enumerated 2006 · practices at St. John Dialysis, LLC.

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

National Provider Identifier

1053373167

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Darrell Heck
Credential M.D.
Sex Male
Practice address 1515 N Harvard Ave, Suite E, Tulsa, OK, 74115
Fax (918) 832-6055
Enumeration date Apr 4, 2006
Last updated in NPPES Dec 11, 2009

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 22315 (OK) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
100763610B 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.

Read the full guide → Validate an NPI →

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 Darrell Heck?
Darrell Heck is registered in NPPES with the primary taxonomy of Anesthesiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-12-11.