Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David Humphrey Drenning, M.D.

Interventional Cardiology Physician in Huntsville, AL · enumerated 2006.

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

National Provider Identifier

1437129152

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Registry record

Entity type Individual (Type 1)

Name Dr. David Humphrey Drenning

Credential M.D.

Sex Male

Practice address 930 Franklin St Se, Huntsville, AL, 35801

Phone (256) 539-4080

Fax (256) 539-4099

Enumeration date Jan 25, 2006

Last updated in NPPES May 8, 2018

Taxonomy & licenses

207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians · License 18148 (AL) 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
25-10185	Other	-	UNITED HEALTHCARE
510-49210	Other	AL	BCBS
510-49211	Other	AL	BCBS
510-49212	Other	AL	BCBS
060037262	Other	-	RAILROAD MEDICARE
112052	Medicaid	AL	-
112063	Medicaid	AL	-
515-99694	Other	AL	BCBS
0196865	Other	TN	BCBS
515-99693	Other	AL	BCBS
000031079	Medicaid	AL	-
112065	Medicaid	AL	-
4484161	Other	-	AETNA
112045	Medicaid	AL	-
P00772001	Other	AL	RAILROAD MEDICARE
515-98515	Other	AL	BCBS
112059	Medicaid	AL	-
112061	Medicaid	AL	-
51031079	Other	AL	BCBS

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

What specialty is David Drenning?

David Drenning is registered in NPPES with the primary taxonomy of Interventional Cardiology 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-08.