Cecillia Tsao, MD - Medicare Internal Medicine in Washington, DC

Cecillia Tsao, MD is a medicare enrolled "Internal Medicine - Endocrinology, Diabetes & Metabolism" physician in Washington, District Of Columbia. She went to Indiana University School Of Medicine and graduated in 1988 and has 36 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Providence Health Services Inc and her current practice location is 128 M St Nw, Washington, District Of Columbia. You can reach out to her office (for appointments etc.) via phone at (202) 854-3840.

Cecillia Tsao is licensed to practice in District Of Columbia (license number MD034412) 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 1821101767.

Contact Information

Cecillia Tsao, MD
128 M St Nw,
Washington, DC 20001-1205
(202) 854-3840
(202) 854-3854

Map and Direction




Physician's Profile

Full NameCecillia Tsao
GenderFemale
SpecialityInternal Medicine
Experience36 Years
Location128 M St Nw, Washington, District Of Columbia
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:
  • Cecillia Tsao attended and graduated from Indiana University School Of Medicine in 1988
  NPI Data:
  • NPI Number: 1821101767
  • Provider Enumeration Date: 08/16/2006
  • Last Update Date: 01/18/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 6406848811
  • Enrollment ID: I20040402000862

Medical Identifiers

Medical identifiers for Cecillia Tsao such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1821101767NPI-NPPES
035300800MedicaidDC
P00431121OtherDCMEDICARE RAILROAD
410695400MedicaidMD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RE0101XInternal Medicine - Endocrinology, Diabetes & Metabolism MD034412 (District Of Columbia)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Providence Health Services Inc438554162221

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. Cecillia Tsao allows following entities to bill medicare on her behalf.
Entity NameProvidence Health Services Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1669453809
PECOS PAC ID: 4385541622
Enrollment ID: O20031216000187

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. Cecillia Tsao 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
Cecillia Tsao, MD
1150 Varnum St Ne,
Washington, DC 20017-2180

Ph: (202) 854-4069
Cecillia Tsao, MD
128 M St Nw,
Washington, DC 20001-1205

Ph: (202) 854-3840

Reviews and Comments


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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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