Andrew Otto, MD - Medicare Emergency Medicine in Walnut Creek, CA

Andrew Otto, MD is a medicare enrolled "Emergency Medicine" physician in Walnut Creek, California. He graduated from medical school in 2010 and has 14 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Olney Emergency Group, A Professional Llc and his current practice location is 1990 N California Blvd, Suite #400, Walnut Creek, California. You can reach out to his office (for appointments etc.) via phone at (540) 981-7000.

Andrew Otto is licensed to practice in Washington (license number MD61129047) 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 1578862157.

Contact Information

Andrew Otto, MD
1990 N California Blvd, Suite #400,
Walnut Creek, CA 94596-3742
(540) 981-7000
Not Available

Map and Direction




Physician's Profile

Full NameAndrew Otto
GenderMale
SpecialityEmergency Medicine
Experience14 Years
Location1990 N California Blvd, Walnut Creek, 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:
  • Andrew Otto graduated from medical school in 2010
  NPI Data:
  • NPI Number: 1578862157
  • Provider Enumeration Date: 03/21/2011
  • Last Update Date: 06/15/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 2466762257
  • Enrollment ID: I20210611002590

Medical Identifiers

Medical identifiers for Andrew Otto such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1578862157NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine MD61129047 (Washington)Primary
207P00000XEmergency Medicine A138024 (California)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mid Valley HospitalOmak, WAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Olney Emergency Group, A Professional Llc842639996517

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. Andrew Otto allows following entities to bill medicare on his behalf.
Entity NameOkanogan County Public Hospital District No. 3
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1255387403
PECOS PAC ID: 6800707951
Enrollment ID: O20040128000027
Entity NameChelan County Public Hospital District No. 1
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1962406389
PECOS PAC ID: 3971491234
Enrollment ID: O20040308001273
Entity NameChelan County Public Hospital District No. 1
Entity TypePart A Provider - Critical Access Hospital
Entity IdentifiersNPI Number: 1962406389
PECOS PAC ID: 3971491234
Enrollment ID: O20080128000803
Entity NameOlney Emergency Group, A Professional Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1386108868
PECOS PAC ID: 8426399965
Enrollment ID: O20190409003071

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. Andrew Otto 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
Andrew Otto, MD
3559 Vernal Ave,
Merced, CA 95340-0638

Ph: () -
Andrew Otto, MD
1990 N California Blvd, Suite #400,
Walnut Creek, CA 94596-3742

Ph: (540) 981-7000

Reviews and Comments


Emergency Medicine Doctors in Walnut Creek, CA

Brook Andrew Woolley, M.D.
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Phone: 925-295-5100    
Malcolm C Johnson, MD
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Phone: 925-939-3000    
Alice Decker Hunter, M.D.
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Seigfred P. Jalalon, M.D.
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Practice Location: 1450 Treat Blvd # 160, Walnut Creek, CA 94597
Phone: 925-296-9000    
Theodore Ira Kloth, M.D.
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Medicare: Not Enrolled in Medicare
Practice Location: 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598
Phone: 925-939-3000    
Stephanie Carlson, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1425 S Main St, Walnut Creek, CA 94596
Phone: 925-295-4000    
Michael R. Lozano, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1425 S Main St, Walnut Creek, CA 94596
Phone: 925-295-4000    

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).

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