Dr Otis Upson Warren, MD - Medicare Emergency Medicine in Providence, RI

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Dr Otis Upson Warren, MD is a medicare enrolled "Emergency Medicine" physician in Providence, Rhode Island. He went to Perelman School Of Med At The University Of Pennsylvania and graduated in 2005 and has 19 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Affinity Physicians Llc., Brown Emergency Medicine and his current practice location is 593 Eddy St, Providence, Rhode Island. You can reach out to his office (for appointments etc.) via phone at (401) 519-1604.

Dr Otis Upson Warren is licensed to practice in Rhode Island (license number MD12935) 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 1285898890.

Contact Information

Dr Otis Upson Warren, MD
593 Eddy St,
Providence, RI 02903-4923
(401) 519-1604
(401) 272-0538

Map and Direction




Physician's Profile

Full NameDr Otis Upson Warren
GenderMale
SpecialityEmergency Medicine
Experience19 Years
Location593 Eddy St, Providence, 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:
  • Dr Otis Upson Warren attended and graduated from Perelman School Of Med At The University Of Pennsylvania in 2005
  NPI Data:
  • NPI Number: 1285898890
  • Provider Enumeration Date: 07/12/2008
  • Last Update Date: 02/05/2010
  Medicare PECOS Information:
  • PECOS PAC ID: 9537216775
  • Enrollment ID: I20090824000285

Medical Identifiers

Medical identifiers for Dr Otis Upson Warren such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1285898890NPI-NPPES
08/01/2009OtherRIUNITED HEALTHCARE
1962455022OtherRIUEMF GROUP NPI
07/30/2009OtherRIBCBS
09/22/2009OtherMATUFTS HEALTH PLAN
OW76308MedicaidRI
001187301OtherRIMEDICARE
08/13/2009OtherRINHPRI
11082647AMedicaidMA
939025129OtherRIMEDICARE GROUP NUMBER

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207PE0004XEmergency Medicine - Emergency Medical Services A98804 (California)Secondary
207P00000XEmergency Medicine MD12935 (Rhode Island)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
The Miriam HospitalProvidence, RIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Affinity Physicians Llc.0244413391616
Brown Emergency Medicine7214833169140

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. Dr Otis Upson Warren allows following entities to bill medicare on his behalf.
Entity NameBrown Emergency Medicine
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1962455022
PECOS PAC ID: 7214833169
Enrollment ID: O20040116000868
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 NameEmergency Associates Of Woonsocket Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1912342528
PECOS PAC ID: 6002050648
Enrollment ID: O20130920000246
Entity NamePhysicians At Landmark
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1255038212
PECOS PAC ID: 4688039084
Enrollment ID: O20230508000159

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. Dr Otis Upson Warren 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
Dr Otis Upson Warren, MD
Po Box 9484,
Providence, RI 02940-9484

Ph: (401) 854-2500		Dr Otis Upson Warren, MD
593 Eddy St,
Providence, RI 02903-4923

Ph: (401) 519-1604

Reviews and Comments


Emergency Medicine Doctors in Providence, RI

Dr. Robert A Partridge, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 593 Eddy St, Claverick 2, Providence, RI 02903
Phone: 401-519-1604    Fax: 401-272-0538
Dr. Gregory R Lockhart, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 593 Eddy St, Claverick 2, Providence, RI 02903
Phone: 401-444-4000    Fax: 401-427-7795
Ian M Jacobson, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 825 Chalkstone Ave, Providence, RI 02908
Phone: 330-493-4443    
Dr. Daniel Shanin, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 593 Eddy St., Claverick 2, Providence, RI 02903
Phone: 401-444-4000    
Dr. Oriane Diana Longerstaey, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 164 Summit Ave, Providence, RI 02906
Phone: 704-355-3181    
Rachel Smith Shain, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 593 Eddy St, Providence, RI 02903
Phone: 401-444-6489    Fax: 401-444-6662
Otto Liebmann, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 593 Eddy St, Claverick 2, Providence, RI 02903
Phone: 401-519-1604    Fax: 401-272-0538

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.