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DR. ROBERT GEOFFREY GELLIN D.M.D., M.H.S.
NPI 1104989847
Dentist - Periodontics in Charleston, SC

Active since December 17, 2006
173 ASHLEY AVE, DENTAL FACULTY PRACTICE, BSB ROOM 346, CHARLESTON, SC 29425(843) 792-3444(843) 792-0348 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Robert Geoffrey Gellin D.m.d., M.h.s. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ROBERT GEOFFREY GELLIN D.M.D., M.H.S. (NPI 1104989847) is an individual periodontics provider in Charleston, South Carolina, licensed in South Carolina (345) and active in the NPI registry since December 2006.

NPPES Registry Identity

NPI1104989847
Entity TypeIndividualMale
Primary Taxonomy1223P0300X
Provider Legal NameDR. ROBERT GEOFFREY GELLINCredential: D.M.D., M.H.S.
Location Address173 ASHLEY AVE, DENTAL FACULTY PRACTICE, BSB ROOM 346Charleston, SC 29425-0001
Mailing Address173 Ashley Ave, Dental Faculty Practice, Bsb Room 346Charleston, SC 29425-0001 · (843) 792-3444 · Fax (843) 792-0348
Phone(843) 792-3444
Fax(843) 792-0348
Sole ProprietorYes
Enumeration DateDecember 17, 2006
Last NPPES UpdateSeptember 11, 2025
✔ NPI 1104989847 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyDentist · PeriodonticsDental Providers
Taxonomy Code1223P0300X
License✔ Licensed in SC · 345
Definition
That specialty of dentistry which encompasses the prevention, diagnosis and treatment of diseases of the supporting and surrounding tissues of the teeth or their substitutes and the maintenance of the health, function and esthetics of these structures and tissues.
Also ListedDentist · General PracticeTaxonomy 1223G0001X · License 2797 (SC)
173 ASHLEY AVE, Charleston, SC 29425
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and more.Insurance ›

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. RACHEL WANG CHEN DMD
Dentist (General Practice)
173 ASHLEY AVE
CHARLESTON, SC 29425
Charleston County (843) 792-2101
DR. MULLEN O COOVER D.D.S.
Dentist (General Practice)
173 ASHLEY AVE, BSB-335
CHARLESTON, SC 29425
Charleston County (843) 792-3765
MALLORY DENISE SWEDBERG
Dentist (General Practice)
173 ASHLEY AVE
CHARLESTON, SC 29425
Charleston County (843) 792-2344
DR. DEVON COLLINS PEREZ DDS
Dentist (Pediatric Dentistry)
173 ASHLEY AVE
CHARLESTON, SC 29425
Charleston County (843) 876-7645
DR. SAMUEL THEODORE MCGILL DMD
Dentist
173 ASHLEY AVE
CHARLESTON, SC 29425
Charleston County (843) 792-3444
DR. STEPHEN WILLIAM MALLEY D.D.S
Dentist (Prosthodontics)
173 ASHLEY AVE, BSB 547
CHARLESTON, SC 29425
Charleston County (843) 792-4456
TIMOTHY ROHDE DDS
Dentist (Endodontics)
173 ASHLEY AVE, BSB 546, MSC 507
CHARLESTON, SC 29425
Charleston County (843) 792-8335
DR. OLGA LUCIA HAHN 52 DMD
Dentist
173 ASHLEY AVE
CHARLESTON, SC 29425
Charleston County (843) 876-7645

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Robert Gellin's NPI number?

The NPI number for Robert Gellin is 1104989847. It was assigned to this individual provider in the NPPES registry on December 17, 2006.

Where is Robert Gellin located?

Robert Gellin practices at 173 Ashley Ave Dental Faculty Practice, Bsb Room 346, Charleston, SC 29425. The listed phone number is (843) 792-3444.

What is Robert Gellin's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Periodontics, with taxonomy code 1223P0300X.

What insurance does Robert Gellin accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and BlueCross BlueShield of South Carolina list Robert Gellin as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Robert Gellin was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.