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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JOHN J HELLMANN D.D.S.
NPI 1659318731
Dentist in Cincinnati, OH

Active since May 31, 2006
476 RIDDLE RD, CINCINNATI, OH 45220(513) 281-8001 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. John J Hellmann D.d.s. NPPES

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

DR. JOHN J HELLMANN D.D.S. (NPI 1659318731) is an individual dentist in Cincinnati, Ohio, licensed in Ohio (30017063) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1659318731
Entity TypeIndividualMale
Primary Taxonomy122300000X
Provider Legal NameDR. JOHN J HELLMANNCredential: D.D.S.
Location Address476 RIDDLE RDCincinnati, OH 45220-2411
Mailing Address850 Miami Ridge DrLoveland, OH 45140-8100 · (513) 583-1002
Phone(513) 281-8001
Sole ProprietorNo
Enumeration DateMay 31, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1659318731 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentistDental Providers
Taxonomy Code122300000X
License✔ Licensed in OH · 30017063
Definition
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.
476 RIDDLE RD, Cincinnati, OH 45220
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Other Identifiers 1

Medicaid0523115OH

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Guardian, Renaissance Dental.Insurance ›

Other Providers at the Same Location NPPES 8

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

HAMILTON HEALTHCARE ASSOCIATES, LLC
Skilled Nursing Facility
476 RIDDLE RD
CINCINNATI, OH 45220
Hamilton County (513) 281-8001
AMANDA SUZANNE THOMAS CTRS
Recreation Therapist
476 RIDDLE RD
CINCINNATI, OH 45220
Hamilton County (513) 281-8001
BRITTANY JENKINS
Physical Therapy Assistant
476 RIDDLE RD
CINCINNATI, OH 45220
Hamilton County (513) 386-9439
LITTLE SISTERS OF THE POOR-CINCINNATI
Nursing Facility/Intermediate Care Facility
476 RIDDLE RD
CINCINNATI, OH 45220
Hamilton County (513) 281-8001
CARLA SUE DAASCH
Nursing Home Administrator
476 RIDDLE RD
CINCINNATI, OH 45220
Hamilton County (513) 281-8001
HAMILTON HEALTHCARE ASSOCIATES, LLC
Assisted Living Facility
476 RIDDLE RD
CINCINNATI, OH 45220
Hamilton County (513) 281-8001
BRIDGETTE BECKER COTA/L
Occupational Therapy Assistant
476 RIDDLE RD
CINCINNATI, OH 45220
Hamilton County (513) 281-8001
REBECCA ANN MOORE COTA/L
Occupational Therapy Assistant
476 RIDDLE RD
CINCINNATI, OH 45220
Hamilton County (513) 281-8001

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 John Hellmann's NPI number?

The NPI number for John Hellmann is 1659318731. It was assigned to this individual provider in the NPPES registry on May 31, 2006.

Where is John Hellmann located?

John Hellmann practices at 476 Riddle Rd, Cincinnati, OH 45220. The listed phone number is (513) 281-8001.

What is John Hellmann's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

What insurance does John Hellmann accept?

Health plans from Guardian and Renaissance Dental list John Hellmann 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 John Hellmann was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 25 days 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.