Robert Ward Hagar, MD - Medicare Internal Medicine in Oakland, CA

Robert Ward Hagar, MD is a medicare enrolled "Internal Medicine" physician in Oakland, California. He went to University Of Virginia School Of Medicine and graduated in 1983 and has 41 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Ucsf Medical Group Business Services and his current practice location is 747 52nd St, Oakland, California. You can reach out to his office (for appointments etc.) via phone at (510) 428-3885.

Robert Ward Hagar is licensed to practice in California (license number G53126) 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 1760549182.

Contact Information

Robert Ward Hagar, MD
747 52nd St,
Oakland, CA 94609-1809
(510) 428-3885
Not Available

Map and Direction




Physician's Profile

Full NameRobert Ward Hagar
GenderMale
SpecialityInternal Medicine
Experience41 Years
Location747 52nd St, Oakland, 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:
  • Robert Ward Hagar attended and graduated from University Of Virginia School Of Medicine in 1983
  NPI Data:
  • NPI Number: 1760549182
  • Provider Enumeration Date: 01/03/2007
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 0749179950
  • Enrollment ID: I20040315000752

Medical Identifiers

Medical identifiers for Robert Ward Hagar such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1760549182NPI-NPPES
00G531260MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine G53126 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Children's Hospital & Research Center OaklandOakland, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Ucsf Medical Group Business Services37794978701092

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. Robert Ward Hagar allows following entities to bill medicare on his behalf.
Entity NameRegents Of The University Of California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1881763597
PECOS PAC ID: 4284547274
Enrollment ID: O20031106000389
Entity NameUniversity Of California San Francisco
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861578973
PECOS PAC ID: 4486567229
Enrollment ID: O20031212000897
Entity NameUcsf Medical Group Business Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477624104
PECOS PAC ID: 3779497870
Enrollment ID: O20040622001513

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. Robert Ward Hagar 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
Robert Ward Hagar, MD
5528 Pacheco Blvd, #a,
Pacheco, CA 94553-5126

Ph: (925) 363-8170
Robert Ward Hagar, MD
747 52nd St,
Oakland, CA 94609-1809

Ph: (510) 428-3885

Reviews and Comments


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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.

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