Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Joel S Greenberg, D.O.
Pediatrics Physician in Lansing, MI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1194838581
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Registry record
Entity type Individual (Type 1)
Name Dr. Joel S Greenberg
Credential D.O.
Sex Male
Practice address 7335 Westshire Dr Ste 102, Lansing, MI, 48917
Phone (517) 622-1012
Fax (517) 622-1033
Enumeration date Aug 17, 2006
Last updated in NPPES Jun 29, 2023
Taxonomy & licenses
208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 5101010629 (MI) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD.
About the DO credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 3343948 | Medicaid | MI | - |
| 1194838581 | Medicaid | MI | - |
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
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 Joel Greenberg?
Joel Greenberg is registered in NPPES with the primary taxonomy of Pediatrics Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-06-29.