Andrea Massar, - Medicare Clinical Social Worker in Rockville, MD

Andrea Massar, is a medicare enrolled "Social Worker - Clinical" provider in Rockville, Maryland. She graduated from medical school in 1996 and has 28 years of diverse experience with area of expertise as Clinical Social Worker. She is a member of the group practice Jewish Social Service Agency and her current practice location is 6123 Montrose Rd, Rockville, Maryland. You can reach out to her office (for appointments etc.) via phone at (018) 813-7003.

Andrea Massar is licensed to practice in Maryland (license number 13815) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1497125793.

Contact Information

Andrea Massar,
6123 Montrose Rd,
Rockville, MD 20852-4860
(018) 813-7003
(301) 468-1862

Map and Direction




Healthcare Provider's Profile

Full NameAndrea Massar
GenderFemale
SpecialityClinical Social Worker
Experience28 Years
Location6123 Montrose Rd, Rockville, Maryland
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Andrea Massar graduated from medical school in 1996
  NPI Data:
  • NPI Number: 1497125793
  • Provider Enumeration Date: 09/29/2015
  • Last Update Date: 03/05/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 6709215106
  • Enrollment ID: I20200407000405

Medical Identifiers

Medical identifiers for Andrea Massar such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1497125793NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
1041C0700XSocial Worker - Clinical 13815 (Maryland)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Jewish Social Service Agency812392009716

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Andrea Massar allows following entities to bill medicare on her behalf.
Entity NameJewish Social Service Agency
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1962414284
PECOS PAC ID: 8123920097
Enrollment ID: O20040121001177

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Andrea Massar is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Andrea Massar,
200 Wood Hill Rd,
Rockville, MD 20850-8724

Ph: (301) 838-4200
Andrea Massar,
6123 Montrose Rd,
Rockville, MD 20852-4860

Ph: (018) 813-7003

Reviews and Comments


Social Worker in Rockville, MD

Mrs. Rebecca Paige Abrahams, LCSW-C
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 3200 Tower Oaks Blvd Ste 200, Rockville, MD 20852
Phone: 301-593-6554    
Dana Naparsteck,
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 1301 Piccard Dr, Suite 4100, Rockville, MD 20850
Phone: 240-777-1370    
Ms. Beth Tabachnick, LCSW-C
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 313 Fallsgrove Dr, Rockville, MD 20850
Phone: 301-455-0843    
Aimee Ochoa,
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 1301 Piccard Dr, Rockville, MD 20850
Phone: 240-777-4000    
Jennifer Mittler Cohen, LCSW C
Clinical Social Worker
Medicare: Accepting Medicare Assignments
Practice Location: 15701 Crabbs Branch Way, Rockville, MD 20855
Phone: 301-251-8965    Fax: 301-251-0136
Ms. Roberta Drucker, LCSW-C
Clinical Social Worker
Medicare: Accepting Medicare Assignments
Practice Location: 6288 Montrose Rd, Rockville, MD 20852
Phone: 301-526-3611    
Julie Baron, MSW, LCSW-C
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 5942 Hubbard Dr, Rockville, MD 20852
Phone: 301-230-9490    Fax: 301-230-9865

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.