Stephen Lewis Grossman, DDS

Stephen Lewis Grossman is a General Practice Dentistry provider (Dentist) practicing in Babylon, NY, registered in the NPPES registry with NPI 1447270749 since 2006. The credential DDS stands for Doctor of Dental Surgery.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1447270749
Entity type	Individual (Type 1)
Name	Stephen Lewis Grossman
Credential	DDS
Sex	Male
Practice address	Babylon, NY, 11702
Phone	6316616666
Fax	6316617865
Enumeration date	2006-07-20
Last updated in NPPES	2007-07-08

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
1223G0001X	General Practice Dentistry	Primary	032713	NY

DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Copy-ready billing details

Provider: Stephen Grossman, DDS
NPI: 1447270749
Taxonomy: 1223G0001X (General Practice Dentistry)
Address: Babylon, NY, 11702

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1841362316	John Zimmerly	Individual	Obstetrics & Gynecology Physician	Babylon, NY
1184755811	Carl Girolamo DDS P.C.	Organization	Dentist	Babylon, NY
1194980466	Blumenthal and Rogers DDS, PC	Organization	Dentist	Babylon, NY

Verify this record

Cross-check NPI 1447270749 against the authoritative CMS record: view Stephen Lewis Grossman 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 Stephen Grossman?

Stephen Grossman is registered in NPPES with the primary taxonomy of General Practice Dentistry. 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 2007-07-08.