Robert J Elsen, MD - Medicare Gastroenterology in San Francisco, CA

Robert J Elsen, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in San Francisco, California. He graduated from medical school in 1986 and has 38 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Daniel R Conlin Md And Robert J Elsen Md A Medical Corporation and his current practice location is 45 Castro St Ste 437, San Francisco, California. You can reach out to his office (for appointments etc.) via phone at (415) 469-0643.

Robert J Elsen is licensed to practice in California (license number G71096) 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 1639212624.

Contact Information

Robert J Elsen, MD
45 Castro St Ste 437,
San Francisco, CA 94114-1029
(415) 469-0643
Not Available

Map and Direction




Physician's Profile

Full NameRobert J Elsen
GenderMale
SpecialityGastroenterology
Experience38 Years
Location45 Castro St Ste 437, San Francisco, 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 J Elsen graduated from medical school in 1986
  NPI Data:
  • NPI Number: 1639212624
  • Provider Enumeration Date: 02/15/2007
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 5597862805
  • Enrollment ID: I20081013000223

Medical Identifiers

Medical identifiers for Robert J Elsen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1639212624NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology G71096 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
California Pacific Medical Ctr-davies Campus HospSan francisco, CAHospital
California Pacific Medical Center- Van Ness CampusSan francisco, CAHospital
California Pacific Medical Center - Mission BernalSan francisco, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Daniel R Conlin Md And Robert J Elsen Md A Medical Corporation04462077242

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 J Elsen allows following entities to bill medicare on his behalf.
Entity NameDaniel R Conlin Md & Robert J Elsen Md A Medical Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1568577955
PECOS PAC ID: 0446207724
Enrollment ID: O20050407001352

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 J Elsen 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 J Elsen, MD
54 Martha Ave,
San Francisco, CA 94131-2835

Ph: (415) 469-0643
Robert J Elsen, MD
45 Castro St Ste 437,
San Francisco, CA 94114-1029

Ph: (415) 469-0643

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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