Harrison To, - Medicare Anesthesiology in San Diego, CA

Harrison To, is a medicare enrolled "Anesthesiology" physician in San Diego, California. He went to University Of Mississippi School Of Medicine and graduated in 2016 and has 8 years of diverse experience with area of expertise as Anesthesiology. He is a member of the group practice Anesthesia Service Medical Group and his current practice location is 3626 Ruffin Rd, San Diego, California. You can reach out to his office (for appointments etc.) via phone at (858) 565-9666.

Harrison To is licensed to practice in California (license number A153820) 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 1578925756.

Contact Information

Harrison To,
3626 Ruffin Rd,
San Diego, CA 92123-1810
(858) 565-9666
(858) 565-9441

Map and Direction




Physician's Profile

Full NameHarrison To
GenderMale
SpecialityAnesthesiology
Experience8 Years
Location3626 Ruffin Rd, San Diego, 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:
  • Harrison To attended and graduated from University Of Mississippi School Of Medicine in 2016
  NPI Data:
  • NPI Number: 1578925756
  • Provider Enumeration Date: 03/25/2016
  • Last Update Date: 11/21/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 6507280054
  • Enrollment ID: I20200716003905

Medical Identifiers

Medical identifiers for Harrison To such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1578925756NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207L00000XAnesthesiology A153820 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Grossmont HospitalLa mesa, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Anesthesia Service Medical Group1153223219237

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. Harrison To allows following entities to bill medicare on his behalf.
Entity NameSouthern California Permanente Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1770515280
PECOS PAC ID: 6002729175
Enrollment ID: O20031110000678
Entity NameAnesthesia Service Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1053354233
PECOS PAC ID: 1153223219
Enrollment ID: O20040121000450

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. Harrison To 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
Harrison To,
3626 Ruffin Rd,
San Diego, CA 92123-1810

Ph: (858) 565-9666
Harrison To,
3626 Ruffin Rd,
San Diego, CA 92123-1810

Ph: (858) 565-9666

Reviews and Comments


Anesthesiology Doctors in San Diego, CA

Shawn Raveenth Vedamani, MD
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 200 W Arbor Dr, San Diego, CA 92103
Phone: 800-926-8273    Fax: 888-539-8781
Michael Conrad Weber, DO
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 34800 Bob Wilson Drive, San Diego, CA 92134
Phone: 619-532-6471    
Susanna Byrne, D.O.
Anesthesiology
Medicare: Medicare Enrolled
Practice Location: 34800 Bob Wilson Dr, San Diego, CA 92134
Phone: 619-532-6400    
Dr. Paige Tsuda, MD
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 200 W Arbor Dr, San Diego, CA 92103
Phone: 800-926-8273    
Thomas J. Pietuch, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 3626 Ruffin Rd, San Diego, CA 92123
Phone: 858-565-9666    Fax: 858-565-9441
Dr. Ching-rong Cheng, MD
Anesthesiology
Medicare: Not Enrolled in Medicare
Practice Location: Ucsd Medical Center, 200 West Arbor Drive Mc 0801, San Diego, CA 92103
Phone: 619-543-5720    
Dr. Jeffrey Koji Sakihara, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 3626 Ruffin Rd, San Diego, CA 92123
Phone: 858-565-9666    Fax: 858-565-9441

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.