David J Sly, DO - Medicare Family Practice in San Francisco, CA

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David J Sly, DO is a medicare enrolled "Family Medicine" physician in San Francisco, California. He went to At Still University Of Health Sciences, College Of Osteo Med, Kirksville and graduated in 1990 and has 36 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Iora Senior Health Llc, Seton Family Of Doctors, One Medical Group Inc and his current practice location is 2 W Portal Ave, San Francisco, California. You can reach out to his office (for appointments etc.) via phone at (888) 663-6331.

David J Sly is licensed to practice in California (license number 20A22993) 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 1255387148.

Contact Information

David J Sly, DO
2 W Portal Ave,
San Francisco, CA 94127-1304
(888) 663-6331
(415) 252-7176

Map and Direction




Physician's Profile

Full NameDavid J Sly
GenderMale
SpecialityFamily Practice
Experience36 Years
Location2 W Portal Ave, San Francisco, 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:
  • David J Sly attended and graduated from At Still University Of Health Sciences, College Of Osteo Med, Kirksville in 1990
  NPI Data:
  • NPI Number: 1255387148
  • Provider Enumeration Date: 05/25/2006
  • Last Update Date: 08/25/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 9032358379
  • Enrollment ID: I20240404000888

Medical Identifiers

Medical identifiers for David J Sly such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1255387148NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 22993 (California)Secondary
207Q00000XFamily Medicine 223 (Nebraska)Secondary
207Q00000XFamily Medicine 008715 (Arizona)Secondary
207Q00000XFamily Medicine 02882 (Iowa)Secondary
207Q00000XFamily Medicine 20A22993 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Iora Senior Health Llc014352018998
Seton Family Of Doctors0941333280721
One Medical Group Inc2567623739336

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. David J Sly allows following entities to bill medicare on his behalf.
Entity NameOmg Arizona, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1184014854
PECOS PAC ID: 9638499247
Enrollment ID: O20150522000007
Entity NameIora Senior Health Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1619376456
PECOS PAC ID: 0143520189
Enrollment ID: O20151124001666

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. David J Sly 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
David J Sly, DO
1 Embarcadero Ctr Ste 1900,
San Francisco, CA 94111-3723

Ph: (415) 658-6791		David J Sly, DO
2 W Portal Ave,
San Francisco, CA 94127-1304

Ph: (888) 663-6331

Reviews and Comments


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Phone: 888-663-6331    Fax: 415-252-7176

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.