Dr Ralph Bernard Armstrong, DO - Medicare Obstetrics/gynecology in Hollister, CA

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Dr Ralph Bernard Armstrong, DO is a medicare enrolled "Obstetrics & Gynecology" physician in Hollister, California. He graduated from medical school in 2001 and has 25 years of diverse experience with area of expertise as Obstetrics/gynecology. He is a member of the group practice Obstetrix Medical Group Of California A Professional Corporation and his current practice location is 931 Sunset Dr, Hollister, California. You can reach out to his office (for appointments etc.) via phone at (831) 635-0604.

Dr Ralph Bernard Armstrong is licensed to practice in California (license number 20A9256) and he also participates in the medicare program. He may accept medicare assignments (which means he may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and his NPI Number is 1477526028.

Contact Information

Dr Ralph Bernard Armstrong, DO
931 Sunset Dr,
Hollister, CA 95023-5602
(831) 635-0604
(831) 665-5750

Map and Direction




Physician's Profile

Full NameDr Ralph Bernard Armstrong
GenderMale
SpecialityObstetrics/gynecology
Experience25 Years
Location931 Sunset Dr, Hollister, California
Accepts Medicare AssignmentsMay be. He may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Ralph Bernard Armstrong graduated from medical school in 2001
  NPI Data:
  • NPI Number: 1477526028
  • Provider Enumeration Date: 02/13/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 2860413697
  • Enrollment ID: I20051208000552

Medical Identifiers

Medical identifiers for Dr Ralph Bernard Armstrong such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1477526028NPI-NPPES
00AX92560MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 20A9256 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Hazel Hawkins Memorial HospitalHollister, CAHospital

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 Ralph Bernard Armstrong allows following entities to bill medicare on his behalf.
Entity NameObstetrix Medical Group Of California A Professional Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1629175336
PECOS PAC ID: 0244120939
Enrollment ID: O20040317000435

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 Ralph Bernard Armstrong 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 Ralph Bernard Armstrong, DO
931 Sunset Dr,
Hollister, CA 95023-5602

Ph: (831) 635-0604		Dr Ralph Bernard Armstrong, DO
931 Sunset Dr,
Hollister, CA 95023-5602

Ph: (831) 635-0604

Reviews and Comments


Obstetrics & Gynecology Doctors in Hollister, CA

Zarin Amin, DO
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 911 Sunset Dr, Hollister, CA 95023
Phone: 831-635-9788    
Dr. Parviz Tabibian, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 901 Sunset Drive, Suite 6, Hollister, CA 95023
Phone: 831-637-9238    Fax: 831-637-1715
Mohammad Aslam Barra, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 930 Sunnyslope Rd E 1, Hollister, CA 95023
Phone: 831-636-1212    Fax: 831-636-8164

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.