Mr Marwan Castellani, LCSW-C - Medicare Clinical Social Worker in Montgomery Village, MD

Mr Marwan Castellani, LCSW-C is a medicare enrolled "Social Worker - Clinical" provider in Montgomery Village, Maryland. He graduated from medical school in 2011 and has 13 years of diverse experience with area of expertise as Clinical Social Worker. He is a member of the group practice Midcounty Therapy Llc and his current practice location is 18502 Office Park Drive, Montgomery Village, Maryland. You can reach out to his office (for appointments etc.) via phone at (301) 509-9359.

Mr Marwan Castellani is licensed to practice in Maryland (license number 16981) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1679002471.

Contact Information

Mr Marwan Castellani, LCSW-C
18502 Office Park Drive,
Montgomery Village, MD 20886
(301) 509-9359
Not Available

Map and Direction




Healthcare Provider's Profile

Full NameMr Marwan Castellani
GenderMale
SpecialityClinical Social Worker
Experience13 Years
Location18502 Office Park Drive, Montgomery Village, Maryland
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Mr Marwan Castellani graduated from medical school in 2011
  NPI Data:
  • NPI Number: 1679002471
  • Provider Enumeration Date: 06/06/2017
  • Last Update Date: 07/21/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 9032540216
  • Enrollment ID: I20200505000028

Medical Identifiers

Medical identifiers for Mr Marwan Castellani such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1679002471NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
1041C0700XSocial Worker - Clinical 16981 (Maryland)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Midcounty Therapy Llc84263181972

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. Mr Marwan Castellani allows following entities to bill medicare on his behalf.
Entity NameMidcounty Therapy Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1518339498
PECOS PAC ID: 8426318197
Enrollment ID: O20180129002082

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. Mr Marwan Castellani 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
Mr Marwan Castellani, LCSW-C
18502 Office Park Dr,
Montgomery Village, MD 20886-0585

Ph: (301) 509-9359
Mr Marwan Castellani, LCSW-C
18502 Office Park Drive,
Montgomery Village, MD 20886

Ph: (301) 509-9359

Reviews and Comments


Social Worker in Montgomery Village, MD

Shamaria A Fahie, LICSW
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 18204 Willow Creek Way Apt G, Montgomery Village, MD 20886
Phone: 619-597-9512    
Mrs. Veronica Jacques, LCSW
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 19901 Spur Hill Dr, Montgomery Village, MD 20886
Phone: 305-978-4989    
Denise Mccollin-twyman, LCSW-C
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 8701 Tryal Court, Montgomery Village, MD 20886
Phone: 301-787-2049    
Mr. Bradley Mark Wasserman, LCSW-C
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 18900 Bluewillow Ln, Montgomery Village, MD 20886
Phone: 301-325-2103    Fax: 301-740-9001
Ramona Zeender, LCSW-C
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 18502 Office Park Dr, Montgomery Village, MD 20886
Phone: 240-603-9652    
Nathaniel Addison Sawyer, LCSW-C
Clinical Social Worker
Medicare: Accepting Medicare Assignments
Practice Location: 18502 Office Park Dr, Montgomery Village, MD 20886
Phone: 301-509-9359    
Mr. Tomas Earl, LCSW-C
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 75 Brassie Ct, Montgomery Village, MD 20886
Phone: 240-888-4750    

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).

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