Dr Diana V Jao, MD - Medicare Internal Medicine in San Mateo, CA

Dr Diana V Jao, MD is a medicare enrolled "Internal Medicine - Geriatric Medicine" physician in San Mateo, California. She went to Hahnemann University College Of Medicine and graduated in 1988 and has 36 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice County Of San Mateo and her current practice location is 222 W 39th Ave, San Mateo, California. You can reach out to her office (for appointments etc.) via phone at (650) 573-2426.

Dr Diana V Jao is licensed to practice in California (license number G068273) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1780683789.

Contact Information

Dr Diana V Jao, MD
222 W 39th Ave,
San Mateo, CA 94403-4364
(650) 573-2426
Not Available

Map and Direction




Physician's Profile

Full NameDr Diana V Jao
GenderFemale
SpecialityInternal Medicine
Experience36 Years
Location222 W 39th Ave, San Mateo, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Diana V Jao attended and graduated from Hahnemann University College Of Medicine in 1988
  NPI Data:
  • NPI Number: 1780683789
  • Provider Enumeration Date: 07/20/2005
  • Last Update Date: 05/09/2017
  Medicare PECOS Information:
  • PECOS PAC ID: 0941304687
  • Enrollment ID: I20070405000168

Medical Identifiers

Medical identifiers for Dr Diana V Jao such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1780683789NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0300XInternal Medicine - Geriatric Medicine G068273 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
San Mateo Medical CenterSan mateo, CAHospital
Peninsula Medical CenterBurlingame, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
County Of San Mateo9032023171262

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 Diana V Jao allows following entities to bill medicare on her behalf.
Entity NameCounty Of San Mateo
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1679642326
PECOS PAC ID: 9032023171
Enrollment ID: O20031126000292
Entity NameCounty Of San Mateo
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1780753434
PECOS PAC ID: 9032023171
Enrollment ID: O20040421001148

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 Diana V Jao 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 Diana V Jao, MD
222 W 39th Ave,
San Mateo, CA 94403-4364

Ph: (650) 573-2426
Dr Diana V Jao, MD
222 W 39th Ave,
San Mateo, CA 94403-4364

Ph: (650) 573-2426

Reviews and Comments


Internal Medicine Doctors in San Mateo, CA

Kent Marc-josef Adler, M.D.
Geriatric Medicine
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.
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 222 W 39th Ave, San Mateo, CA 94403
Phone: 650-573-2222    
Dr. Daniel Rengstorff, M.D.
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 218 De Anza Blvd, San Mateo, CA 94402
Phone: 650-341-9131    
Lisa Gooze, MD
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 222 W 39th Ave, San Mateo, CA 94403
Phone: 650-573-2222    
Vivian Levy, MD
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 222 W 39th Ave, San Mateo, CA 94403
Phone: 650-573-2222    
Dr. Tina Au,
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 222 W 39th Ave, San Mateo, CA 94403
Phone: 650-573-3702    
Julian Hardy Mclain, MD
Geriatric Medicine
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.