Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Dana J Greenberg, MD
Ophthalmology Physician in Troy, MI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1487627428
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Dr. Dana J Greenberg
Credential MD
Sex Female
Practice address 3001 W Big Beaver Rd, Ste 105, Troy, MI, 48084
Phone (248) 649-2820
Fax (248) 649-1444
Enumeration date Feb 9, 2006
Last updated in NPPES May 20, 2008
Taxonomy & licenses
207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 4301076892 (MI) Primary
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 |
|---|---|---|---|
| 1806338822 | Other | MI | BLUE CROSS BLUE SHIELD |
| H49395 | Other | MI | MEDICARE RAILROAD |
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 Dana Greenberg?
Dana Greenberg is registered in NPPES with the primary taxonomy of Ophthalmology 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 →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-20.