Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Gregory N Entis, M.D.
Allergy Physician in Cincinnati, OH · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1528062890
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Dr. Gregory N Entis
Credential M.D.
Sex Male
Practice address 8245 Northcreek Dr, Cincinnati, OH, 45236
Phone (513) 246-7000
Fax (513) 246-5284
Enumeration date Jun 2, 2005
Last updated in NPPES Jul 15, 2015
Taxonomy & licenses
207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License 35.039575 (OH) Secondary
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 |
|---|---|---|---|
| 0459329 | Medicaid | OH | - |
| 0402853 | 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.
Frequently asked questions
What specialty is Gregory Entis?
Gregory Entis is registered in NPPES with the primary taxonomy of Allergy 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.
Other providers at this practice address
Browse all → Jennifer Marklay Internal Medicine Physician · Cincinnati, OH NPI 1467454850 Rodney Roof Podiatrist · Cincinnati, OH NPI 1356333249 John Samol Obstetrics & Gynecology Physician · Cincinnati, OH NPI 1558352419 Mayra Frias Internal Medicine Physician · Cincinnati, OH NPI 1093760589 Nancy Deblasis Pediatrics Physician · Cincinnati, OH NPI 1003862061 William Buckley Obstetrics & Gynecology Physician · Cincinnati, OH NPI 1558308197 Joseph Hamad Internal Medicine Physician · Cincinnati, OH NPI 1518906635 Robert Hellmann Internal Medicine Physician · Cincinnati, OH NPI 1528007648
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-07-15.