Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Michael Jeffrey Leinwand, MD
Surgery Physician in Kalamazoo, MI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1447230032
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Michael Jeffrey Leinwand
Credential MD
Sex Male
Practice address 601 John St, Suite M351, Kalamazoo, MI, 49007
Phone (226) 934-1690
Fax (269) 341-7883
Enumeration date Jan 19, 2006
Last updated in NPPES Jan 6, 2025
Taxonomy & licenses
2086S0120X Pediatric Surgery Physician Allopathic & Osteopathic Physicians · License 4301086349 (MI) Secondary
2086S0120X Pediatric Surgery Physician Allopathic & Osteopathic Physicians · License 75727 (AZ) 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 |
|---|---|---|---|
| 4765549 | 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
What specialty is Michael Leinwand?
Michael Leinwand is registered in NPPES with the primary taxonomy of Surgery 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 → Fadi Ajine Rheumatology Physician · Kalamazoo, MI NPI 1275533986 Kim Mills Cytopathology Physician · Kalamazoo, MI NPI 1386637692 Marijo Snyder Obstetrics & Gynecology Physician · Kalamazoo, MI NPI 1881689123 Susan Fuller Women's Health Nurse Practitioner · Kalamazoo, MI NPI 1366437303 Houssam Attal Cytopathology Physician · Kalamazoo, MI NPI 1760478598 Linda Dyer Ertl Pediatrics Physician · Kalamazoo, MI NPI 1083602924 James Goodspeed Obstetrics & Gynecology Physician · Kalamazoo, MI NPI 1568443042 Tom Garling Obstetrics & Gynecology Physician · Kalamazoo, MI NPI 1780665257
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-06.