DAVID J. SLY DO
NPI 1255387148
Family Medicine in San Francisco, CA

Active since May 25, 2006PECOS EnrolledAccepts Medicare Assignment
2 W PORTAL AVE, SAN FRANCISCO, CA 94127(888) 663-6331(415) 252-7176 Get Directions Write a Review

NPPES record last updated: August 25, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 14, 2025, Apr 22, 2024, Feb 5, 2024 and 1 more (4 updates tracked since 2021).

About David J. Sly Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DAVID J. SLY DO (NPI 1255387148) is an individual family medicine provider in San Francisco, California, licensed in California (20A22993) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, maintains 4 additional practice locations, and is a graduate of At Still University Of Health Sciences, College Of Osteo Med, Kirksville (1990).

NPPES Registry Identity

NPI1255387148
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDAVID J. SLYCredential: DO
Location Address2 W PORTAL AVESan Francisco, CA 94127-1304
Mailing Address1 Embarcadero Ctr Ste 1900San Francisco, CA 94111-3723 · (415) 658-6791
Fax(415) 252-7176
Sole ProprietorNo
Medical School CMSAt Still University Of Health Sciences, College Of Osteo Med, KirksvilleGraduated 1990
Enumeration DateMay 25, 2006
Last NPPES UpdateAugust 25, 20254 updates tracked since enumeration
NPPES CertifiedAugust 25, 2025
NPI 1255387148 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses Licensed in CA · 20A22993 Licensed in CA · 22993 Licensed in NE · 223 Licensed in AZ · 008715 Licensed in IA · 02882
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
2 W PORTAL AVE, San Francisco, CA 94127

Secondary Practice Locations 4

Location 112 37th Street PlSioux City, IA 51104-2102 · Phone (712) 490-7815 · Fax (712) 214-5804
Location 22201 E Camelback Rd Ste 101APhoenix, AZ 85016-3495 · Phone (888) 663-6331 · Fax (415) 252-7176
Location 32 Embarcadero Ctr Lbby LevelSan Francisco, CA 94111-3823 · Phone (888) 663-6331 · Fax (415) 252-7176
Location 41350 Connecticut Ave NW Ste 1250Washington, DC 20036-1728 · Phone (888) 663-6331 · Fax (415) 252-7176

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

David J. Sly Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9032358379
PECOS Enrollment IDI20240404000888, I20240415003376
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
18 services17 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
16 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94127 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine
2 W PORTAL AVE
SAN FRANCISCO, CA 94127
Family Medicine
2 W PORTAL AVE
SAN FRANCISCO, CA 94127
Nurse Practitioner (Family)
2 W PORTAL AVE
SAN FRANCISCO, CA 94127
Nurse Practitioner
2 W PORTAL AVE
SAN FRANCISCO, CA 94127
Internal Medicine
2 W PORTAL AVE
SAN FRANCISCO, CA 94127
Nurse Practitioner (Pediatrics)
2 W PORTAL AVE
SAN FRANCISCO, CA 94127

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is David Sly's NPI number?

The NPI number for David Sly is 1255387148. It was assigned to this individual provider in the NPPES registry on May 25, 2006.

Where is David Sly located?

David Sly practices at 2 W Portal Ave, San Francisco, CA 94127. The listed phone number is (888) 663-6331.

What is David Sly's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is David Sly enrolled in Medicare?

Yes. David Sly is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does David Sly accept?

Health plans from Blue Cross and Blue Shield of Texas list David Sly as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for David Sly was last updated on August 25, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.