Gillian Elizabeth Chase, MD - Medicare Obstetrics & Gynecology in Warwick, RI

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Gillian Elizabeth Chase, MD is a medicare enrolled "Obstetrics & Gynecology" physician in Warwick, Rhode Island. Her current practice location is 166 Toll Gate Rd, Warwick, Rhode Island. You can reach out to her office (for appointments etc.) via phone at (401) 739-2000.

Gillian Elizabeth Chase is licensed to practice in Rhode Island (license number MD19409) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1336708635.

Contact Information

Gillian Elizabeth Chase, MD
166 Toll Gate Rd,
Warwick, RI 02886-4411
(401) 739-2000
(401) 732-7842

Map and Direction




Physician's Profile

Full NameGillian Elizabeth Chase
GenderFemale
SpecialityObstetrics & Gynecology
Location166 Toll Gate Rd, Warwick, Rhode Island
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1336708635
  • Provider Enumeration Date: 06/10/2019
  • Last Update Date: 09/05/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 0244650018
  • Enrollment ID: I20230830003504

Medical Identifiers

Medical identifiers for Gillian Elizabeth Chase such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1336708635NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology MD19409 (Rhode Island)Primary

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. Gillian Elizabeth Chase allows following entities to bill medicare on her behalf.
Entity NameAffinity Physicians Llc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1184944662
PECOS PAC ID: 0244413391
Enrollment ID: O20110326000053
Entity NameLifespan Physician Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1407116643
PECOS PAC ID: 2567455082
Enrollment ID: O20121029000368
Entity NamePrime Healthcare Services Landmark Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1457772543
PECOS PAC ID: 3274761069
Enrollment ID: O20140404000644
Entity NamePrime Healthcare Services Landmark Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1518388651
PECOS PAC ID: 3274761069
Enrollment ID: O20140428000588

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. Gillian Elizabeth Chase 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
Gillian Elizabeth Chase, MD
455 Toll Gate Rd,
Warwick, RI 02886-2759

Ph: (012) 730-6414		Gillian Elizabeth Chase, MD
166 Toll Gate Rd,
Warwick, RI 02886-4411

Ph: (401) 739-2000

Reviews and Comments


Obstetrics & Gynecology Doctors in Warwick, RI

Dr. Althea Lindsay, DO
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 166 Toll Gate Rd, Caring For Women, Warwick, RI 02886
Phone: 401-739-2000    
Luce Auriane Amon Kassi, MD
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 455 Toll Gate Rd, Warwick, RI 02886
Phone: 401-737-7010    Fax: 401-736-4546
Mark Francis Scott, M.D.
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 390 Toll Gate Rd, Suite 201, Warwick, RI 02886
Phone: 401-738-8800    Fax: 401-738-7670
Dr. Jessica F Moore, MD
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 455 Toll Gate Rd, Warwick, RI 02886
Phone: 401-737-7010    Fax: 401-736-4546
Dr. Bethany Wortman, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 166 Toll Gate Rd, Warwick, RI 02886
Phone: 401-739-7000    
J Douglas Nisbet Ii, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 390 Toll Gate Rd Ste 201, Warwick, RI 02886
Phone: 401-738-8803    Fax: 401-738-7658
Marian Craighill, M.D.
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 475 Kilvert St, Suite 310, Warwick, RI 02886
Phone: 401-732-7324    

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.