Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Leonard Block, MD
Surgery Physician in Nashua, NH · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1982618013
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Registry record
Entity type Individual (Type 1)
Name Leonard Block
Credential MD
Sex Male
Practice address 280 Main St, Suite 441, Nashua, NH, 03060
Phone (603) 577-3160
Fax (603) 577-3199
Enumeration date Jul 27, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
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 |
|---|---|---|---|
| 0102361Y0NH03 | Other | NH | ANTHEM |
| 006804 | Other | NH | TUFTS |
| B72924 | Other | NH | HARVARD PILGRIM HEALTH |
| 30203683 | Medicaid | NH | - |
| 35040 | Other | NH | CIGNA HEALTHCARE |
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 NPI 1982618013 active?
Yes, as of the latest NPPES snapshot, NPI 1982618013 is active (record last updated 2007-07-08).
How do I verify Leonard Block's NPI record?
Cross-check NPI 1982618013 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → James Peterson Family Medicine Physician · Nashua, NH NPI 1538158522 Yulan Wang Physical Medicine & Rehabilitation Physician · Nashua, NH NPI 1992795538 Sandhya Dasari Internal Medicine Physician · Nashua, NH NPI 1417929076 Mark Mallek Gastroenterology Physician · Nashua, NH NPI 1609841832 Jennifer Winslow Family Nurse Practitioner · Nashua, NH NPI 1922073220 Evergreen Womens Health Care Pllc Obstetrics & Gynecology Physician · Nashua, NH NPI 1891754974 Rebecca Green Obstetrics & Gynecology Physician · Nashua, NH NPI 1639139942 Donna Caron Psychiatric/Mental Health Nurse Practitioner · Nashua, NH NPI 1548220767
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.