Alan F Gruenefeldt, MD - Medicare Family Practice in Auburn, CA

Alan F Gruenefeldt, MD is a medicare enrolled "Family Medicine" physician in Auburn, California. He went to Oregon Health Sciences University School Of Medicine and graduated in 1989 and has 35 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Western Sierra Medical Clinic Inc. and his current practice location is 404 Auburn Folsom Rd, Auburn, California. You can reach out to his office (for appointments etc.) via phone at (530) 885-6221.

Alan F Gruenefeldt is licensed to practice in California (license number G69052) 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 1780795930.

Contact Information

Alan F Gruenefeldt, MD
404 Auburn Folsom Rd,
Auburn, CA 95603-5515
(530) 885-6221
(530) 885-9403

Map and Direction




Physician's Profile

Full NameAlan F Gruenefeldt
GenderMale
SpecialityFamily Practice
Experience35 Years
Location404 Auburn Folsom Rd, Auburn, 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:
  • Alan F Gruenefeldt attended and graduated from Oregon Health Sciences University School Of Medicine in 1989
  NPI Data:
  • NPI Number: 1780795930
  • Provider Enumeration Date: 08/31/2006
  • Last Update Date: 10/04/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 8921994146
  • Enrollment ID: I20040225000343

Medical Identifiers

Medical identifiers for Alan F Gruenefeldt such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1780795930NPI-NPPES
00G690520MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine G69052 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Progressive Home Care - AuburnAuburn, CAHome health agency
Sierra Nevada Memorial HospitalGrass valley, CAHospital
Sutter Auburn Faith HospitalAuburn, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Western Sierra Medical Clinic Inc.397157121727

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. Alan F Gruenefeldt allows following entities to bill medicare on his behalf.
Entity NameWestern Sierra Medical Clinic Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851513469
PECOS PAC ID: 3971571217
Enrollment ID: O20040923000686

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. Alan F Gruenefeldt 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
Alan F Gruenefeldt, MD
844 Old Tunnel Rd Ste 100,
Grass Valley, CA 95945-8524

Ph: (530) 274-9762
Alan F Gruenefeldt, MD
404 Auburn Folsom Rd,
Auburn, CA 95603-5515

Ph: (530) 885-6221

Reviews and Comments


Family Medicine Doctors in Auburn, CA

Michael P Mulligan, MD
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Dr. Michael D Boyd, MD
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Scott C. Schmidt, DO
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Dr. Mark E Knoble, M.D.
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Dr. William N Tucker, M.D.
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Phone: 530-886-2300    Fax: 530-886-2301

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.