Dr Keith Barclay Mercer, MD - Medicare Ophthalmology in Grass Valley, CA

  1. Home
  2. Ophthalmology
  3. CA
  4. Grass Valley
Dr Keith Barclay Mercer, MD is a medicare enrolled "Ophthalmology" physician in Grass Valley, California. He went to University Of California, Irvine, California College Of Medicine and graduated in 1977 and has 49 years of diverse experience with area of expertise as Ophthalmology. He is a member of the group practice Sierra View Medical Eye Inc and his current practice location is 400 Sierra College Dr, Suite A, Grass Valley, California. You can reach out to his office (for appointments etc.) via phone at (530) 272-3411.

Dr Keith Barclay Mercer is licensed to practice in California (license number G37695) 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 1568543049.

Contact Information

Dr Keith Barclay Mercer, MD
400 Sierra College Dr, Suite A,
Grass Valley, CA 95945-5089
(530) 272-3411
(530) 272-3474

Map and Direction




Physician's Profile

Full NameDr Keith Barclay Mercer
GenderMale
SpecialityOphthalmology
Experience49 Years
Location400 Sierra College Dr, Grass Valley, 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:
  • Dr Keith Barclay Mercer attended and graduated from University Of California, Irvine, California College Of Medicine in 1977
  NPI Data:
  • NPI Number: 1568543049
  • Provider Enumeration Date: 10/18/2006
  • Last Update Date: 01/10/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 5890716534
  • Enrollment ID: I20051209000475

Medical Identifiers

Medical identifiers for Dr Keith Barclay Mercer such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1568543049NPI-NPPES
GR0004680MedicaidCA
G37695OtherCALICENSE NUMBER
G376950MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207W00000XOphthalmology G37695 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Sierra Nevada Memorial HospitalGrass valley, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Sierra View Medical Eye Inc71139418086

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 Keith Barclay Mercer allows following entities to bill medicare on his behalf.
Entity NameSierra View Medical Eye Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1982631941
PECOS PAC ID: 7113941808
Enrollment ID: O20060120000508

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 Keith Barclay Mercer 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 Keith Barclay Mercer, MD
400 Sierra College Dr, Suite A,
Grass Valley, CA 95945-5089

Ph: (530) 272-3411		Dr Keith Barclay Mercer, MD
400 Sierra College Dr, Suite A,
Grass Valley, CA 95945-5089

Ph: (530) 272-3411

Reviews and Comments


Ophthalmology Doctors in Grass Valley, CA

Dr. John Edward Hagele, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 400 Sierra College Dr, Suite A, Grass Valley, CA 95945
Phone: 530-272-3411    Fax: 530-272-3474
Dr. Matthew Zealear, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 400 Sierra College Dr, Suite A, Grass Valley, CA 95945
Phone: 530-272-3411    Fax: 530-272-3474

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.