Warren Andrew Ong, MD - Medicare Psychiatry in Johnston, RI

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Warren Andrew Ong, MD is a medicare enrolled "Psychiatry & Neurology - Psychiatry" physician in Johnston, Rhode Island. He went to University Of Missouri, Kansas City, School Of Medicine and graduated in 1992 and has 32 years of diverse experience with area of expertise as Psychiatry. He is a member of the group practice Thundermist Health Center and his current practice location is 1443 Hartford Ave, Johnston, Rhode Island. You can reach out to his office (for appointments etc.) via phone at (401) 273-8100.

Warren Andrew Ong is licensed to practice in Rhode Island (license number 9162) 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 1003896101.

Contact Information

Warren Andrew Ong, MD
1443 Hartford Ave,
Johnston, RI 02919
(401) 273-8100
(401) 553-1072

Map and Direction




Physician's Profile

Full NameWarren Andrew Ong
GenderMale
SpecialityPsychiatry
Experience32 Years
Location1443 Hartford Ave, Johnston, Rhode Island
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:
  • Warren Andrew Ong attended and graduated from University Of Missouri, Kansas City, School Of Medicine in 1992
  NPI Data:
  • NPI Number: 1003896101
  • Provider Enumeration Date: 01/17/2006
  • Last Update Date: 01/13/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 4385678044
  • Enrollment ID: I20050921001151

Medical Identifiers

Medical identifiers for Warren Andrew Ong such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1003896101NPI-NPPES
7005366MedicaidRI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084P0800XPsychiatry & Neurology - Psychiatry 9162 (Rhode Island)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Thundermist Health Center1557270477131

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. Warren Andrew Ong allows following entities to bill medicare on his behalf.
Entity NameThe Providence Center Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1104847946
PECOS PAC ID: 9739080292
Enrollment ID: O20040116000840
Entity NameThundermist Health Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700041001
PECOS PAC ID: 1557270477
Enrollment ID: O20040211000909

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. Warren Andrew Ong 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
Warren Andrew Ong, MD
249 Roosevelt Ave, Suite 205,
Pawtucket, RI 02860

Ph: (401) 724-8400		Warren Andrew Ong, MD
1443 Hartford Ave,
Johnston, RI 02919

Ph: (401) 273-8100

Reviews and Comments


Psychiatry & Neurology Doctors in Johnston, RI

Dr. Albert Joseph Marano, M.D.
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 1524 Atwood Ave, Suite 244, Johnston, RI 02919
Phone: 401-272-7660    Fax: 401-421-2730
Cyril O Burke Iii, M.D.
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 1524 Atwood Ave, Suite 120, Johnston, RI 02919
Phone: 401-521-9620    Fax: 401-521-4651
Farhad Amani, DO
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 1443 Hartford Ave, Johnston, RI 02919
Phone: 401-273-8100    Fax: 401-553-1072
Nicholas Gelormini, M.D.
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 1443 Hartford Ave, Johnston, RI 02919
Phone: 401-553-1000    Fax: 401-722-5280

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.