WILLIAM B DOWNS M.D.
NPI 1851593636
Preventive Medicine - Occupational Medicine in Ontario, CA

Q: What is William Downs's NPI number?

The NPI number for William Downs is 1851593636. It was assigned to this individual provider in the NPPES registry on June 4, 2007.

Q: What is William Downs's specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Occupational Medicine, with taxonomy code 2083X0100X.

Q: When was this NPI record last updated?

The NPPES record for William Downs was last updated on October 7, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.

Active since June 04, 2007PECOS Enrolled

1101 S MILLIKEN AVE, SUITE C, ONTARIO, CA 91761(615) 778-4066 Get Directions Write a Review

NPPES record last updated: October 7, 2009. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About William B Downs M.d. NPPES

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

WILLIAM B DOWNS M.D. (NPI 1851593636) is an individual occupational medicine provider in Ontario, California, licensed in California (G39617) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1851593636

Entity TypeIndividualMale

Primary Taxonomy2083X0100X

Provider Legal NameWILLIAM B DOWNSCredential: M.D.

Location Address1101 S MILLIKEN AVE, SUITE COntario, CA 91761-8112

Mailing Address5080 Spectrum Dr, Suite 1200 WestAddison, TX 75001-4648 · (972) 364-8000 · Fax (214) 775-4502

Phone(615) 778-4066

Sole ProprietorNo

Enumeration DateJune 4, 2007

Last NPPES UpdateOctober 7, 2009

✔ NPI 1851593636 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPreventive Medicine · Occupational MedicineAllopathic & Osteopathic Physicians

Taxonomy Code2083X0100X

License✔ Licensed in CA · G39617

Definition

Occupational medicine focuses on the health of workers, including the ability to perform work; the physical, chemical, biological, and social environments of the workplace; and the health outcomes of environmental exposures. Practitioners in this field address the promotion of health in the work place, and the prevention and management of occupational and environmental injury, illness, and disability.

1101 S MILLIKEN AVE, Ontario, CA 91761

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Other Identifiers 2

Medicare PINZZZ07334ZCA

Medicare UPINCF599ZCA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William B Downs M.d. 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91761 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

$136.04 typical visit price

range $59.60 – $179.42

Typical copayment $34.01 (range $14.90 – $44.85)

Most-billed visit code 99204

Established Patient

$104.64 typical visit price

range $19.37 – $146.42

Typical copayment $26.16 (range $4.84 – $36.60)

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 5

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

RAHEELA A JAMES P.T.

Physical Therapist

1101 S MILLIKEN AVE, SUITE B, C, D
ONTARIO, CA 91761

San Bernardino County (615) 778-4066

CHRISTINE M NATOR P.T.

Physical Therapist

1101 S MILLIKEN AVE, SUITE B,C,D
ONTARIO, CA 91761

San Bernardino County (615) 778-4066

JAY PATEL

Physical Therapist

1101 S MILLIKEN AVE
ONTARIO, CA 91761

San Bernardino County (714) 937-1919

MICHELLE L MARTIN P.T.

Physical Therapist

1101 S MILLIKEN AVE, SUITE B,C,D
ONTARIO, CA 91761

San Bernardino County (615) 778-4066

NILDA T TORREFLORES PT.

Physical Therapist

1101 S MILLIKEN AVE, SUITE B,C,D
ONTARIO, CA 91761

San Bernardino County (615) 778-4066

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 Downs's NPI number?

The NPI number for William Downs is 1851593636. It was assigned to this individual provider in the NPPES registry on June 4, 2007.

Where is William Downs located?

William Downs practices at 1101 S Milliken Ave Suite C, Ontario, CA 91761. The listed phone number is (615) 778-4066.

What is William Downs's specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Occupational Medicine, with taxonomy code 2083X0100X.

Is William Downs enrolled in Medicare?

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

When was this NPI record last updated?

The NPPES record for William Downs was last updated on October 7, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.