Louis S Liou, MD, PHD - Medicare Urology in Cambridge, MA

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Louis S Liou, MD, PHD is a medicare enrolled "Urology" physician in Cambridge, Massachusetts. He went to Boston University School Of Medicine and graduated in 1996 and has 29 years of diverse experience with area of expertise as Urology. He is a member of the group practice Milford Regional Physician Group, Inc., Emerson Practice Associates, Inc and his current practice location is 1493 Cambridge St, Cambridge, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (617) 665-3590.

Louis S Liou is licensed to practice in Massachusetts (license number 216911) 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 1346212404.

Contact Information

Louis S Liou, MD, PHD
1493 Cambridge St,
Cambridge, MA 02139-1047
(617) 665-3590
Not Available

Map and Direction




Physician's Profile

Full NameLouis S Liou
GenderMale
SpecialityUrology
Experience29 Years
Location1493 Cambridge St, Cambridge, Massachusetts
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:
  • Louis S Liou attended and graduated from Boston University School Of Medicine in 1996
  NPI Data:
  • NPI Number: 1346212404
  • Provider Enumeration Date: 02/03/2006
  • Last Update Date: 09/03/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 5799671467
  • Enrollment ID: I20070822001210

Medical Identifiers

Medical identifiers for Louis S Liou such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1346212404NPI-NPPES
2013592MedicaidMA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208800000XUrology 216911 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Emerson Hospital -W concord, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Milford Regional Physician Group, Inc.5597679449224
Emerson Practice Associates, Inc8123188117222

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. Louis S Liou allows following entities to bill medicare on his behalf.
Entity NameLahey Clinic Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538194980
PECOS PAC ID: 2264336528
Enrollment ID: O20031120000097
Entity NamePratt Urology Associates, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1497795025
PECOS PAC ID: 8426949025
Enrollment ID: O20040323000991
Entity NameMilford Regional Physician Group, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902856024
PECOS PAC ID: 5597679449
Enrollment ID: O20040503001341
Entity NameLahey Clinic Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1063447316
PECOS PAC ID: 2264336528
Enrollment ID: O20040629001269
Entity NameCambridge Public Health Commission
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1932313228
PECOS PAC ID: 8921910894
Enrollment ID: O20050808000725
Entity NameEmerson Practice Associates, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1508020199
PECOS PAC ID: 8123188117
Enrollment ID: O20081120000518
Entity NameSteward Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1629398219
PECOS PAC ID: 2860688728
Enrollment ID: O20101119000332
Entity NameAoa Urological Associates Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1922802438
PECOS PAC ID: 8123543642
Enrollment ID: O20250417000593

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. Louis S Liou 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
Louis S Liou, MD, PHD
1493 Cambridge St,
Cambridge, MA 02139-1047

Ph: (617) 665-3590		Louis S Liou, MD, PHD
1493 Cambridge St,
Cambridge, MA 02139-1047

Ph: (617) 665-3590

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).

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.