Dr Geoffrey A Geer, MD - Medicare Emergency Medicine in Louisville, CO

Dr Geoffrey A Geer, MD is a medicare enrolled "Emergency Medicine" physician in Louisville, Colorado. He went to University Of Southern California Keck School Of Medicine and graduated in 1988 and has 36 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Usacs Community Emergency Services Of Colorado Inc., Usacs Of Colorado Inc and his current practice location is 100 Health Park Dr, Louisville, Colorado. You can reach out to his office (for appointments etc.) via phone at (303) 673-1111.

Dr Geoffrey A Geer is licensed to practice in Colorado (license number 30936) 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 1396728481.

Contact Information

Dr Geoffrey A Geer, MD
100 Health Park Dr,
Louisville, CO 80027-9583
(303) 673-1111
(303) 673-1122

Map and Direction




Physician's Profile

Full NameDr Geoffrey A Geer
GenderMale
SpecialityEmergency Medicine
Experience36 Years
Location100 Health Park Dr, Louisville, Colorado
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 Geoffrey A Geer attended and graduated from University Of Southern California Keck School Of Medicine in 1988
  NPI Data:
  • NPI Number: 1396728481
  • Provider Enumeration Date: 11/22/2005
  • Last Update Date: 08/14/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 4587651211
  • Enrollment ID: I20101026001090

Medical Identifiers

Medical identifiers for Dr Geoffrey A Geer such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1396728481NPI-NPPES
20326023101OtherPACIFICARE SERCURE HORIZONS
01309368MedicaidCO
P01026967OtherRR MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 30936 (Colorado)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Centura Health-st Anthony North Health CampusWestminster, COHospital
Centura Health-avista Adventist HospitalLouisville, COHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Usacs Community Emergency Services Of Colorado Inc.2466711536169
Usacs Of Colorado Inc498150757146

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 Geoffrey A Geer allows following entities to bill medicare on his behalf.
Entity NameUsacs Of Colorado Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760415871
PECOS PAC ID: 4981507571
Enrollment ID: O20040130000439
Entity NamePremier Emergency Services Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1457755688
PECOS PAC ID: 0244554970
Enrollment ID: O20150128001221
Entity NameUsacs Observation Medicine Services Of Colorado Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1518491232
PECOS PAC ID: 9133498074
Enrollment ID: O20170707002144
Entity NameUsacs Community Emergency Services Of Colorado Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1053824979
PECOS PAC ID: 2466711536
Enrollment ID: O20180117002329

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 Geoffrey A Geer 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 Geoffrey A Geer, MD
Po Box 5788,
Denver, CO 80217-5788

Ph: (303) 202-1280
Dr Geoffrey A Geer, MD
100 Health Park Dr,
Louisville, CO 80027-9583

Ph: (303) 673-1111

Reviews and Comments


Emergency Medicine Doctors in Louisville, CO

Dr. Maria Regina F Oakes, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 100 Health Park Dr, Louisville, CO 80027
Phone: 303-673-1003    Fax: 303-202-1281
Dr. Stefanie A. Huff, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 100 Health Park Dr, Louisville, CO 80027
Phone: 720-321-4161    Fax: 720-321-4165
Dr. Ronald A Linton, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 100 Health Park Dr, Louisville, CO 80027
Phone: 303-673-1111    Fax: 303-673-1122
Dr. Ming-jay Jeffrey Wu, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 100 Health Park Dr, Louisville, CO 80027
Phone: 303-673-1111    Fax: 303-202-1281
Dr. Melissa M Greenfield Serlen, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 80 Health Park Dr, Ste 100, Louisville, CO 80027
Phone: 303-666-2720    Fax: 303-666-2734
Dr. Joe F. Turnbow, M.D.
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 679 Dahlia Way, Louisville, CO 80027
Phone: 303-664-1963    

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.