William James Mesnard, MD
William James Mesnard is a Rheumatology Physician provider (Internal Medicine) practicing in Millburn, NJ, registered in the NPPES registry with NPI 1467559617 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1467559617 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | William James Mesnard |
| Credential | MD |
| Sex | Male |
| Practice address | 116 MILLBURN AVE, Millburn, NJ, 07041 |
| Phone | 9733752545 |
| Fax | 9734674207 |
| Enumeration date | 2006-09-20 |
| Last updated in NPPES | 2025-09-11 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207R00000X | Internal Medicine Physician | Secondary | MA46581 | NJ |
| 207RR0500X | Rheumatology Physician | Primary | MA46581 | NJ |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Copy-ready billing details
Provider: William Mesnard, MD NPI: 1467559617 Taxonomy: 207RR0500X (Rheumatology Physician) Address: 116 MILLBURN AVE, Millburn, NJ, 07041
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1730150632 | Michael Rosen | Individual | Gastroenterology Physician | Millburn, NJ |
| 1407829955 | Qaisra Saeed | Individual | Cardiovascular Disease Physician | Millburn, NJ |
| 1306867478 | Pratibha Kulkarni | Individual | Internal Medicine Physician | Millburn, NJ |
| 1982618146 | Lonnie Hanauer | Individual | Specialist | Millburn, NJ |
| 1922015361 | Marc Goldman | Individual | Periodontics | Millburn, NJ |
| 1144338641 | Rajendra Desai | Individual | Cardiovascular Disease Physician | Millburn, NJ |
| 1518043470 | Mariavida Tecson | Individual | Specialist | Millburn, NJ |
| 1205908118 | Yatinder Bains | Individual | Gastroenterology Physician | Millburn, NJ |
Verify this record
Cross-check NPI 1467559617 against the authoritative CMS record: view William James Mesnard 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
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-09-11.