Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ivy Sue Masserman, M.D.
Pediatrics Physician in Wheaton, MD · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821102450
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Registry record
Entity type Individual (Type 1)
Name Ivy Sue Masserman
Credential M.D.
Sex Female
Practice address 2401 Blueridge Ave, Wheaton, MD, 20902
Phone (301) 933-6440
Fax (301) 933-5923
Enumeration date Aug 19, 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 |
|---|---|---|---|
| 561161200 | Medicaid | MD | - |
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 is the NPI number for Ivy Masserman?
The National Provider Identifier (NPI) for Ivy Masserman is 1821102450, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ivy Masserman practice?
The practice location on file with NPPES is in Wheaton, MD. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Ann Starchman Pediatrics Physician · Wheaton, MD NPI 1316921372 Henry Sakai Pediatrics Physician · Wheaton, MD NPI 1912968082 Samuel Leibowitz Pediatrics Physician · Wheaton, MD NPI 1528029055 Bonnie Harte Pediatrics Physician · Silver Spring, MD NPI 1629030697 Geri Hoggard Pediatric Nurse Practitioner · Wheaton, MD NPI 1831157635 Yasmeen Abernathy Pediatric Adolescent Medicine Physician · Silver Spring, MD NPI 1508892787 Erik Rubinson Pediatrics Physician · Silver Spring, MD NPI 1750397394 Capital Care, Inc Intellectual and/or Developmental Disabilities Community Based Residential Treatment Facility · Silver Spring, MD NPI 1366527111
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.