Katherine Ann Maher, MD - Medicare Rheumatology in Frederick, MD

Katherine Ann Maher, MD is a medicare enrolled "Internal Medicine - Rheumatology" physician in Frederick, Maryland. She went to Georgetown University School Of Medicine and graduated in 2010 and has 14 years of diverse experience with area of expertise as Rheumatology. She is a member of the group practice Arthritis And Rheumatism Associates Pc, Amber Hill Physical Therapy Inc and her current practice location is 161 Thomas Johnson Dr Ste 250, Frederick, Maryland. You can reach out to her office (for appointments etc.) via phone at (301) 942-7600.

Katherine Ann Maher is licensed to practice in Maryland (license number D0088133) 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 1225353865.

Contact Information

Katherine Ann Maher, MD
161 Thomas Johnson Dr Ste 250,
Frederick, MD 21702-4314
(301) 942-7600
(301) 694-0187

Map and Direction




Physician's Profile

Full NameKatherine Ann Maher
GenderFemale
SpecialityRheumatology
Experience14 Years
Location161 Thomas Johnson Dr Ste 250, Frederick, 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:
  • Katherine Ann Maher attended and graduated from Georgetown University School Of Medicine in 2010
  NPI Data:
  • NPI Number: 1225353865
  • Provider Enumeration Date: 04/06/2010
  • Last Update Date: 02/16/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 8729218805
  • Enrollment ID: I20140312000282

Medical Identifiers

Medical identifiers for Katherine Ann Maher such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1225353865NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RR0500XInternal Medicine - Rheumatology D0088133 (Maryland)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Arthritis And Rheumatism Associates Pc559775070348
Amber Hill Physical Therapy Inc852796391768

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. Katherine Ann Maher allows following entities to bill medicare on her behalf.
Entity NameArthritis And Rheumatism Associates Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1447259866
PECOS PAC ID: 5597750703
Enrollment ID: O20040417000032

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. Katherine Ann Maher 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
Katherine Ann Maher, MD
2730 University Blvd W Ste 310,
Wheaton, MD 20902-1990

Ph: (301) 942-7600
Katherine Ann Maher, MD
161 Thomas Johnson Dr Ste 250,
Frederick, MD 21702-4314

Ph: (301) 942-7600

Reviews and Comments


Internal Medicine Doctors in Frederick, MD

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Dr. Kristin A Conley, DO
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Dr. Michael Terry Sullivan, MD
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Phone: 301-682-5683    Fax: 301-682-3499
Kellen Mulhern, D.O.
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Phone: 240-215-6310    

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.

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