Dr Aaron Pessl, MD - Medicare Emergency Medicine in Hayward, CA

Dr Aaron Pessl, MD is a medicare enrolled "Emergency Medicine" physician in Hayward, California. He went to Tulane University School Of Medicine and graduated in 2003 and has 21 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Permanente Medical Group Inc and his current practice location is 27400 Hesperian Blvd, Hayward, California. You can reach out to his office (for appointments etc.) via phone at (510) 784-4525.

Dr Aaron Pessl is licensed to practice in California (license number A89998) 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 1063425072.

Contact Information

Dr Aaron Pessl, MD
27400 Hesperian Blvd,
Hayward, CA 94545-4235
(510) 784-4525
Not Available

Map and Direction




Physician's Profile

Full NameDr Aaron Pessl
GenderMale
SpecialityEmergency Medicine
Experience21 Years
Location27400 Hesperian Blvd, Hayward, 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 Aaron Pessl attended and graduated from Tulane University School Of Medicine in 2003
  NPI Data:
  • NPI Number: 1063425072
  • Provider Enumeration Date: 08/14/2006
  • Last Update Date: 12/09/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 3476575085
  • Enrollment ID: I20051223000205

Medical Identifiers

Medical identifiers for Dr Aaron Pessl such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1063425072NPI-NPPES
00A899980MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine A89998 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Kaiser Foundation Hospital - San LeandroSan leandro, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Permanente Medical Group Inc89219102258376

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 Aaron Pessl allows following entities to bill medicare on his behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710

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 Aaron Pessl 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 Aaron Pessl, MD
2247 31st Ave,
San Francisco, CA 94116-1640

Ph: (415) 731-1125
Dr Aaron Pessl, MD
27400 Hesperian Blvd,
Hayward, CA 94545-4235

Ph: (510) 784-4525

Reviews and Comments


Emergency Medicine Doctors in Hayward, CA

Rameshchandra Naranbhai Patel, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 27400 Hesperian Blvd, Hayward, CA 94545
Phone: 510-784-4000    
Sarah Lynn Welsh, D.O.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 27200 Calaroga Ave, Hayward, CA 94545
Phone: 510-264-4026    
Dr. Shao-i Huang, D.O.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 27200 Calaroga Ave, Hayward, CA 94545
Phone: 510-264-4000    
Dr. Christopher Wan, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 27400 Hesperian Blvd, Kaiser Hayward Emergency Dept., Hayward, CA 94545
Phone: 510-784-4521    
Charles Getz, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 27400 Hesperian Blvd, Hayward, CA 94545
Phone: 510-784-4000    
Eric Anderson, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 27400 Hesperian Blvd, Hayward, CA 94545
Phone: 510-784-4000    

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.