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

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David J Sly, DO is a medicare enrolled "Family Medicine" physician in San Francisco, California. 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 does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. 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 Medicine
Location2 W Portal Ave, San Francisco, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  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: I20181222000373

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

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 NameTeladoc Health Medical Group Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1245403567
PECOS PAC ID: 3173786837
Enrollment ID: O20210902000518

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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Practice Location: 2 Embarcadero Ctr Lbby, San Francisco, CA 94111
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.