Dr Daniel Rengstorff, MD - Medicare Gastroenterology in San Mateo, CA

Dr Daniel Rengstorff, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in San Mateo, California. He went to Georgetown University School Of Medicine and graduated in 1998 and has 26 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Regents Of The University Of California - Ucsf and his current practice location is 218 De Anza Blvd, San Mateo, California. You can reach out to his office (for appointments etc.) via phone at (650) 341-9131.

Dr Daniel Rengstorff is licensed to practice in California (license number A75430) 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 1033295662.

Contact Information

Dr Daniel Rengstorff, MD
218 De Anza Blvd,
San Mateo, CA 94402-3913
(650) 341-9131
Not Available

Map and Direction




Physician's Profile

Full NameDr Daniel Rengstorff
GenderMale
SpecialityGastroenterology
Experience26 Years
Location218 De Anza Blvd, San Mateo, 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 Daniel Rengstorff attended and graduated from Georgetown University School Of Medicine in 1998
  NPI Data:
  • NPI Number: 1033295662
  • Provider Enumeration Date: 10/27/2006
  • Last Update Date: 10/07/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 0143295998
  • Enrollment ID: I20040826000752

Medical Identifiers

Medical identifiers for Dr Daniel Rengstorff such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1033295662NPI-NPPES
GR0025350MedicaidCA
ZZZ12647ZOtherCABLUE SHIED

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology A75430 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
El Camino HospitalMountain view, CAHospital
Sequoia HospitalRedwood city, CAHospital
Stanford Health CareStanford, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Regents Of The University Of California - Ucsf337582247163

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 Daniel Rengstorff allows following entities to bill medicare on his behalf.
Entity NamePeninsula Gastroenterology Medical Group, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1558434589
PECOS PAC ID: 4082661392
Enrollment ID: O20050407000820
Entity NameRegents Of The University Of California - Ucsf
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1265890263
PECOS PAC ID: 3375822471
Enrollment ID: O20161114000177

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 Daniel Rengstorff 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 Daniel Rengstorff, MD
2900 Whipple Ave Ste 245,
Redwood City, CA 94062-2851

Ph: (650) 365-3700
Dr Daniel Rengstorff, MD
218 De Anza Blvd,
San Mateo, CA 94402-3913

Ph: (650) 341-9131

Reviews and Comments


Internal Medicine Doctors in San Mateo, CA

Kent Marc-josef Adler, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 218 De Anza Blvd, San Mateo, CA 94402
Phone: 650-341-9131    Fax: 650-341-9135
Stanley Cheung-kit Hui, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 222 W 39th Ave, San Mateo, CA 94403
Phone: 650-573-2222    
Lisa Gooze, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 222 W 39th Ave, San Mateo, CA 94403
Phone: 650-573-2222    
Vivian Levy, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 222 W 39th Ave, San Mateo, CA 94403
Phone: 650-573-2222    
Dr. Tina Au,
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 222 W 39th Ave, San Mateo, CA 94403
Phone: 650-573-3702    
Julian Hardy Mclain, MD
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 50 S San Mateo Dr, San Mateo, CA 94401
Phone: 650-696-5420    

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.