Gerard Demers, DO - Medicare Emergency Medicine in San Diego, CA

Gerard Demers, DO is a medicare enrolled "Emergency Medicine" physician in San Diego, California. He went to Rowan University School Of Osteopathic Medicine and graduated in 1998 and has 26 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Sharp Rees-stealy Medical Group Inc, Providence Medical Foundation, Ihc-beaver Dam Emergency Physicians, Llc and his current practice location is 34800 Bob Wilson Dr, Nmcsd- Emergency Department-suite 118, San Diego, California. You can reach out to his office (for appointments etc.) via phone at (619) 532-8276.

Gerard Demers is licensed to practice in California (license number 20A11662) 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 1487626032.

Contact Information

Gerard Demers, DO
34800 Bob Wilson Dr, Nmcsd- Emergency Department-suite 118,
San Diego, CA 92134-1005
(619) 532-8276
Not Available

Map and Direction




Physician's Profile

Full NameGerard Demers
GenderMale
SpecialityEmergency Medicine
Experience26 Years
Location34800 Bob Wilson Dr, San Diego, California
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:
  • Gerard Demers attended and graduated from Rowan University School Of Osteopathic Medicine in 1998
  NPI Data:
  • NPI Number: 1487626032
  • Provider Enumeration Date: 02/06/2006
  • Last Update Date: 01/09/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 2668643016
  • Enrollment ID: I20110915000701

Medical Identifiers

Medical identifiers for Gerard Demers such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1487626032NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 02002377A (Indiana)Secondary
207P00000XEmergency Medicine 20A11662 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Beaver Dam Community Hospital Dba Marshfield Medical Center - Beaver DamBeaver dam, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Sharp Rees-stealy Medical Group Inc8628972759783
Providence Medical Foundation89219932051312
Ihc-beaver Dam Emergency Physicians, Llc812312965718

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. Gerard Demers allows following entities to bill medicare on his behalf.
Entity NameSharp Rees-stealy Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285616177
PECOS PAC ID: 8628972759
Enrollment ID: O20031120000996
Entity NameProvidence Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285890624
PECOS PAC ID: 8921993205
Enrollment ID: O20040216001346

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. Gerard Demers 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
Gerard Demers, DO
3776 Mactibby St,
San Diego, CA 92117-6136

Ph: () -
Gerard Demers, DO
34800 Bob Wilson Dr, Nmcsd- Emergency Department-suite 118,
San Diego, CA 92134-1005

Ph: (619) 532-8276

Reviews and Comments


Emergency Medicine Doctors in San Diego, CA

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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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