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DR. WILLIAM O.S. FRANCIS MD
NPI 1689967309
Emergency Medicine in Antioch, CA

Active since May 27, 2011PECOS Enrolled
94.62/100
CMS Quality Rating
3901 LONE TREE WAY, ANTIOCH, CA 94509(408) 627-4080 Get Directions Write a Review

NPPES record last updated: August 4, 2014. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. William O.s. Francis Md NPPES

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

DR. WILLIAM O.S. FRANCIS MD (NPI 1689967309) is an individual emergency medicine provider in Antioch, California, licensed in California (A126820) and active in the NPI registry since May 2011. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1689967309
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. WILLIAM O.S. FRANCISCredential: MD
Location Address3901 LONE TREE WAYAntioch, CA 94509-6200
Mailing Address5201 Great America Pkwy, Suite 320Santa Clara, CA 95054-1122 · (408) 627-4080
Phone(408) 627-4080
Sole ProprietorNo
Enumeration DateMay 27, 2011
Last NPPES UpdateAugust 4, 2014
✔ NPI 1689967309 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · A126820
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
3901 LONE TREE WAY, Antioch, CA 94509
Open in Google Maps ↗

Other Names 1

Other Name (5)Dr. Oli S Francis Md

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. William O.s. Francis Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 4

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
147 services140 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
146 services133 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
33 services32 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
33 services33 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94509 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

94.62/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality76.67
Improvement Activities40
Cost97.14

Other Providers at the Same Location NPPES 20

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

DR. DUNG THINGOC NGUYEN PHARM. D.
Pharmacist
3901 LONE TREE WAY
ANTIOCH, CA 94509
Contra Costa County (925) 779-7200
KATHLEEN A REGACHO MD
Emergency Medicine
3901 LONE TREE WAY
ANTIOCH, CA 94509
Contra Costa County (925) 779-3522
KHANH D NGUYEN M.D.
Emergency Medicine
3901 LONE TREE WAY
ANTIOCH, CA 94509
Contra Costa County (510) 350-2657
CATHERINE JANSON PROSSER N.P.
Registered Nurse
3901 LONE TREE WAY
ANTIOCH, CA 94509
Contra Costa County (925) 779-7200
MARY ANTIONETTE FITZSIMONS M.D
Emergency Medicine
3901 LONE TREE WAY
ANTIOCH, CA 94509
Contra Costa County (925) 779-7273
CATHERINE J. BELL MD
Anesthesiology
3901 LONE TREE WAY
ANTIOCH, CA 94509
Contra Costa County (925) 779-7200
DR. PATRICIA ANNE YABUT HARO M.D.
Hospitalist
3901 LONE TREE WAY
ANTIOCH, CA 94509
Contra Costa County (916) 854-6975
MARGARET HELEN BEAR PA-C
Physician Assistant (Medical)
3901 LONE TREE WAY
ANTIOCH, CA 94509
Contra Costa County (925) 779-7200

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 William Francis's NPI number?

The NPI number for William Francis is 1689967309. It was assigned to this individual provider in the NPPES registry on May 27, 2011. The provider is also known as Dr. Oli S Francis MD.

Where is William Francis located?

William Francis practices at 3901 Lone Tree Way, Antioch, CA 94509. The listed phone number is (408) 627-4080.

What is William Francis's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is William Francis enrolled in Medicare?

Yes. William Francis is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for William Francis was last updated on August 4, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.