Dr. Michael Steven Dahn, MD

Dr. Michael Steven Dahn is a Vascular Surgery Physician provider (Surgery) practicing in Bluffton, SC, registered in the NPPES registry with NPI 1114924677 since 2005. The credential MD stands for Doctor of Medicine. Practices at Hilton Head Regional Physician Group LLC (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum

NPI	1114924677
Entity type	Individual (Type 1)
Name	Dr. Michael Steven Dahn
Credential	MD
Sex	Male
Practice address	111 PERSIMMONS ST, Bluffton, SC, 29910
Phone	9126297800
Fax	9123551414
Enumeration date	2005-06-30
Last updated in NPPES	2022-09-13

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
2086S0129X	Vascular Surgery Physician	Secondary	074240	GA
2086S0129X	Vascular Surgery Physician	Primary	38328	SC

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
383285	Medicaid	SC	—

Copy-ready billing details

Provider: Michael Dahn, MD
NPI: 1114924677
Taxonomy: 2086S0129X (Vascular Surgery Physician)
Address: 111 PERSIMMONS ST, Bluffton, SC, 29910

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1407882582	Christopher Wixon	Individual	Vascular Surgery Physician	Bluffton, SC
1821755372	Melissa Brown	Individual	Nurse Practitioner	Bluffton, SC
1386506004	Hilton Head Regional Physician Group LLC	Organization	Vascular Surgery Physician	Bluffton, SC

Verify this record

Cross-check NPI 1114924677 against the authoritative CMS record: view Dr. Michael Steven Dahn on the official NPPES registry .

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 or validate an NPI number.

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 Michael Dahn?

Michael Dahn is registered in NPPES with the primary taxonomy of Vascular Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2022-09-13.