Andrea Massar
Clinical Social Worker · Rockville, MD
Andrea Massar is a clinical social worker with a practice address in Rockville, Maryland, and NPI 1497125793, issued on Sep 29, 2015. Check the license (Maryland 13815, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Andrea Massar
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 13815 MD
Self-reported in NPPES; status is on the state search - Practice location
- 6123 Montrose RD, Rockville, MD 20852
- Phone
- (018) 813-7003
- Enumerated
- Sep 29, 2015
- Record last updated
- Mar 5, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (301) 468-1862
- Medicare enrollment
- Enrolled (PECOS I20200407000405); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 9,007 in Maryland → Look up another NPI →
Also registered at 6123 Montrose RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anna Altman, LMSWSocial Worker1700627296
- Wendy Baber, LCSW-CSocial Worker1366454670
- Rebecca Batt, LCSW CSocial Worker1548272826
- Avi CridenSocial Worker1164389698
- Renee Delacroix, LCSW-CSocial Worker1356646798
- Deepal Dharia, D.O.Hospice and Palliative Medicine (Family Medicine) Physician1700260437
Verify Andrea Massar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license 13815Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Jewish Social Service AgencyRockville, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Andrea Massar among 9,007 clinical social worker records in Maryland
Andrea Massar is one of 9,007 clinical social worker records with a practice address in Maryland. 11% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 47% of them.
- NPI issued2015 · 47% of these records are older, 49% newer
- In a Medicare fileYes · 11% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated1996 · median 2006 among the 1,685 with a school on file
- Record last updated2020 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
410 clinical social worker records list a practice address in Rockville
They are 410 of the 14,353 NPPES records with a practice address in Rockville, and 9,007 clinical social worker records in Maryland.
All 9,007 in Maryland → Every provider in Rockville → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Mary Blotzer, LCSW CRockville, MD 208521114062866
- Kathleen Bogado, LCSW-CRockville, MD 208521659403053
- John Dunn, LCSW-CRockville, MD 208521316093107
- Lara Gregorio, LCSW, LGSWRockville, MD 208521811069826
- Helen McDowell, LCSWRockville, MD 208521104904705
- Cecilia McKay, MSWRockville, MD 208521316923477
- Joanne Milobsky, LCSW-CRockville, MD 208521467446179
- Britt Rathbone, MSSWRockville, MD 208521063418770
Common questions
What is Andrea Massar's NPI number?
Andrea Massar's National Provider Identifier (NPI) is 1497125793, issued on Sep 29, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Andrea Massar located?
The NPPES record lists a practice address at 6123 Montrose RD, Rockville, MD, 20852. Phone: (018) 813-7003. Providers update this record themselves, so call before visiting.
How can I verify Andrea Massar's license?
NPPES lists Maryland license number 13815, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.