Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Barrett & Geiss Dermatology Inc

Specialist in Granville, OH · enumerated 2007 · authorized official David Geiss, Physician.

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

National Provider Identifier

1720204514

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Registry record

Entity type Organization (Type 2)

Legal business name Barrett & Geiss Dermatology Inc

Practice address 2000 Newark Granville Rd Ste 202, Granville, OH, 43023

Phone (740) 587-3376

Fax (740) 587-1424

Enumeration date Apr 18, 2007

Last updated in NPPES Mar 12, 2008

Taxonomy & classification

174400000X Specialist Other Service Providers · License 34005696G (OH) Primary

Authorized official

Name David Geiss

Title Physician

Phone (740) 344-1415

Other identifiers

Identifier	Type	State	Issuer
0190289	Medicaid	OH	-

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

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Barrett & Geiss Dermatology Inc?

Barrett & Geiss Dermatology Inc is registered in NPPES as a Specialist (its primary provider taxonomy).

Providers at this address

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David Geiss Dermatology Physician · Granville, OH NPI 1619970639

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-12.