Maureen D Passaro, MD - Medicare Endocrinology in Olney, MD

Maureen D Passaro, MD is a medicare enrolled "Internal Medicine - Endocrinology, Diabetes & Metabolism" physician in Olney, Maryland. She went to New York Medical College and graduated in 1990 and has 34 years of diverse experience with area of expertise as Endocrinology. She is a member of the group practice Medstar Medical Group Ii Llc and her current practice location is 18109 Prince Philip Dr Ste B, Olney, Maryland. You can reach out to her office (for appointments etc.) via phone at (301) 774-4529.

Maureen D Passaro is licensed to practice in Maryland (license number D0044487) 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 1316940141.

Contact Information

Maureen D Passaro, MD
18109 Prince Philip Dr Ste B,
Olney, MD 20832-1519
(301) 774-4529
(301) 774-5652

Map and Direction




Physician's Profile

Full NameMaureen D Passaro
GenderFemale
SpecialityEndocrinology
Experience34 Years
Location18109 Prince Philip Dr Ste B, Olney, 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:
  • Maureen D Passaro attended and graduated from New York Medical College in 1990
  NPI Data:
  • NPI Number: 1316940141
  • Provider Enumeration Date: 05/24/2005
  • Last Update Date: 01/30/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 2860543014
  • Enrollment ID: I20100427000038

Medical Identifiers

Medical identifiers for Maureen D Passaro such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1316940141NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RE0101XInternal Medicine - Endocrinology, Diabetes & Metabolism D0044487 (Maryland)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Medstar Montgomery Medical CenterOlney, MDHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Medstar Medical Group Ii Llc05474138251776

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. Maureen D Passaro allows following entities to bill medicare on her behalf.
Entity NameMedstar Medical Group Ii Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1184046187
PECOS PAC ID: 0547413825
Enrollment ID: O20130117000415

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. Maureen D Passaro 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
Maureen D Passaro, MD
2901 Olney Sandy Spring Rd,
Olney, MD 20832-1521

Ph: (301) 774-6655
Maureen D Passaro, MD
18109 Prince Philip Dr Ste B,
Olney, MD 20832-1519

Ph: (301) 774-4529

Reviews and Comments


Internal Medicine Doctors in Olney, MD

Dr. Ata Motamedi, MD
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 17904 Georgia Ave, Suite # 304, Olney, MD 20832
Phone: 301-924-2790    Fax: 301-924-1631
Amit Pathak, MD
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 2901 Olney Sandy Spring Rd, Olney, MD 20832
Phone: 301-774-6655    Fax: 301-774-5652
Kunwardeep Singh Sohal, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Medicare Enrolled
Practice Location: 18101 Prince Philip Dr, Olney, MD 20832
Phone: 301-774-8882    
Robert J Kreitman, MP
Endocrinology, Diabetes & Metabolism
Medicare: Not Enrolled in Medicare
Practice Location: 18111 Prince Philip Dr, #327, Olney, MD 20832
Phone: 301-774-6136    Fax: 301-570-0136
Dr. Christopher John Mays, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 18111 Prince Philip Dr, Suite 207, Olney, MD 20832
Phone: 301-774-7170    Fax: 301-774-6676
Dr. Joseph Garrett Reilly, M.D., PH.D.
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 3418 Olandwood Ct, Suite 111, Olney, MD 20832
Phone: 301-774-8198    Fax: 301-774-8199
Dr. Keith Mark Hull, MD, PHD
Endocrinology, Diabetes & Metabolism
Medicare: Not Enrolled in Medicare
Practice Location: 18315 Leedstown Way, Olney, MD 20832
Phone: 301-774-7831    

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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