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DR. WILLIAM ROY MAINS M.D.
NPI 1477751741
Psychiatry & Neurology - Addiction Psychiatry in Oakland, CA

Active since July 06, 2007PECOS EnrolledAccepts Medicare Assignment
7200 BANCROFT AVE, SUITE 133, OAKLAND, CA 94605(510) 553-8500(510) 553-8550 Get Directions Write a Review

NPPES record last updated: January 7, 2010. Verified against the NPPES registry weekly; last sync: September 06, 2026.

About Dr. William Roy Mains M.d. NPPES

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

DR. WILLIAM ROY MAINS M.D. (NPI 1477751741) is an individual addiction psychiatry provider in Oakland, California, licensed in California (A65356) and active in the NPI registry since July 2007. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Diego School Of Medicine (1996).

NPPES Registry Identity

NPI1477751741
Entity TypeIndividualMale
Primary Taxonomy2084P0802X
Provider Legal NameDR. WILLIAM ROY MAINSCredential: M.D.
Location Address7200 BANCROFT AVE, SUITE 133Oakland, CA 94605-2403
Mailing Address7200 Bancroft Ave, Suite 133Oakland, CA 94605-2403 · (510) 553-8500 · Fax (510) 553-8550
Phone(510) 553-8500
Fax(510) 553-8550
Sole ProprietorYes
Medical School CMSUniversity Of California, San Diego School Of MedicineGraduated 1996
Enumeration DateJuly 6, 2007
Last NPPES UpdateJanuary 7, 2010
✔ NPI 1477751741 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · Addiction PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0802X
License✔ Licensed in CA · A65356
Definition
Addiction Psychiatry is a subspecialty of psychiatry that focuses on evaluation and treatment of individuals with alcohol, drug, or other substance-related disorders, and of individuals with dual diagnosis of substance-related and other psychiatric disorders.
7200 BANCROFT AVE, Oakland, CA 94605
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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

Dr. William Roy Mains M.d. 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 ID2264409630
PECOS Enrollment IDI20040914001391
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

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.

Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes 99348
An established patient home visit is a 25-minute appointment where a healthcare provider visits you at your home. This service is for patients who have previously been seen by the provider. It includes a check-up and discussion about your health concerns.
32 services12 patients

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.

TANYA MCCULLOM
Case Manager/Care Coordinator
7200 BANCROFT AVE, SUITE 125D
OAKLAND, CA 94605
Alameda County (510) 777-3886
DANICE HAMLIN
Registered Nurse (Community Health)
7200 BANCROFT AVE
OAKLAND, CA 94605
Alameda County (443) 759-1083
KRISTIE LYNNA EDWARDS
Counselor
7200 BANCROFT AVE
OAKLAND, CA 94605
Alameda County (510) 538-8500
MS. RENEE DEANNA SADIQ LCSW
Social Worker (Clinical)
7200 BANCROFT AVE, STE 125D
OAKLAND, CA 94605
Alameda County (510) 777-3889
DR. SCOTT JAY MADOVER PH.D.
Psychologist (Family)
7200 BANCROFT AVE, EASTMONT TOWN CENTER BLDG. B SUITE 133
OAKLAND, CA 94605
Alameda County (510) 553-8500
CRYSTAL NOEL O'CONNELL MSC, MFTI
Counselor (Mental Health)
7200 BANCROFT AVE, BUILDING B #133
OAKLAND, CA 94605
Alameda County (707) 590-3603
MS. CHRISTINE MUKAI LCSW
Social Worker (Clinical)
7200 BANCROFT AVE, SUITE 125C
OAKLAND, CA 94605
Alameda County (510) 383-5068
OAKLAND & ALAMEDA CHILDREN'S SERVICES
Marriage & Family Therapist
7200 BANCROFT AVE, #125-D
OAKLAND, CA 94605
Alameda County (510) 777-3870

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 Mains's NPI number?

The NPI number for William Mains is 1477751741. It was assigned to this individual provider in the NPPES registry on July 6, 2007.

Where is William Mains located?

William Mains practices at 7200 Bancroft Ave Suite 133, Oakland, CA 94605. The listed phone number is (510) 553-8500.

What is William Mains's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Addiction Psychiatry, with taxonomy code 2084P0802X.

Is William Mains enrolled in Medicare?

Yes. William Mains 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.

When was this NPI record last updated?

The NPPES record for William Mains was last updated on January 7, 2010. 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.