Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Jonathan Philip Winickoff, MD MPH
Pediatrics Physician in Waltham, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1720049760
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Registry record
Entity type Individual (Type 1)
Name Dr. Jonathan Philip Winickoff
Credential MD MPH
Sex Male
Practice address 40 2nd Ave, Ste 400 Mass General West Medical Group Waltham, Waltham, MA, 02451
Phone (781) 522-9000
Fax (781) 522-9095
Enumeration date Mar 29, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| J22483 | Other | MA | BCBS MA |
| 0100650 | Medicaid | MA | - |
| 205857 | Other | MA | TUFTS HEALTH PLAN |
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
How do I verify Jonathan Winickoff's NPI record?
Cross-check NPI 1720049760 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1720049760 active?
Yes, as of the latest NPPES snapshot, NPI 1720049760 is active (record last updated 2007-07-08).
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.