WILLIAM S BAEK M.D..
NPI 1326095977
Psychiatry & Neurology - Neurology in Upland, CA

Q: What is William Baek's NPI number?

The NPI number for William Baek is 1326095977. It was assigned to this individual provider in the NPPES registry on May 28, 2006.

Q: What is William Baek's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Q: When was this NPI record last updated?

The NPPES record for William Baek was last updated on February 6, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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 May 28, 2006PECOS Enrolled

630 N 13TH AVE, SUITE B, UPLAND, CA 91786(909) 982-2719(909) 946-9931 Get Directions Write a Review

NPPES record last updated: February 6, 2012. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About William S Baek M.d.. NPPES

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

WILLIAM S BAEK M.D.. (NPI 1326095977) is an individual neurology provider in Upland, California, licensed in California (A91283) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1326095977

Entity TypeIndividualMale

Primary Taxonomy2084N0400X

Provider Legal NameWILLIAM S BAEKCredential: M.D..

Location Address630 N 13TH AVE, SUITE BUpland, CA 91786-4975

Mailing Address630 N 13th Ave, Suite BUpland, CA 91786-4975 · (909) 982-2719 · Fax (909) 946-9931

Phone(909) 982-2719

Fax(909) 946-9931

Sole ProprietorNo

Enumeration DateMay 28, 2006

Last NPPES UpdateFebruary 6, 2012

✔ NPI 1326095977 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians

Taxonomy Code2084N0400X

License✔ Licensed in CA · A91283

Definition

A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.

630 N 13TH AVE, Upland, CA 91786

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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 (PECOS)

William S Baek 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 91786 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.

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Other Providers at the Same Location NPPES 11

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

DR. BIPIN C PATADIA MD

Specialist

630 N 13TH AVE, # D
UPLAND, CA 91786

San Bernardino County (909) 946-5851

MR. PEIRUCH PERRY WICH

Psychiatry & Neurology (Neurology)

630 N 13TH AVE, SUITE F
UPLAND, CA 91786

San Bernardino County (909) 946-3826

BHUPAT H DESAI MD INC

Psychiatry & Neurology (Neurology)

630 N 13TH AVE, SUITE B
UPLAND, CA 91786

San Bernardino County (909) 982-2719

SAAD PEDIATRICS

Pediatrics

630 N 13TH AVE, SUITE E
UPLAND, CA 91786

San Bernardino County (909) 946-6676

BIPIN PATADIA M.D. FACC INC

Specialist

630 N 13TH AVE, D
UPLAND, CA 91786

San Bernardino County (909) 946-5851

PEREZ & PEREZ MEDICAL CORP

Pediatrics

630 N 13TH AVE, STE A
UPLAND, CA 91786

San Bernardino County (909) 985-7257

DR. BHUPATRAI H DESAI M.D.

Psychiatry & Neurology (Neurology)

630 N 13TH AVE, SUITE B
UPLAND, CA 91786

San Bernardino County (909) 982-2719

MR. ANTOUNE K SAAD MD

Pediatrics

630 N 13TH AVE, STE E
UPLAND, CA 91786

San Bernardino County (909) 946-6676

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 Baek's NPI number?

The NPI number for William Baek is 1326095977. It was assigned to this individual provider in the NPPES registry on May 28, 2006.

Where is William Baek located?

William Baek practices at 630 N 13th Ave Suite B, Upland, CA 91786. The listed phone number is (909) 982-2719.

What is William Baek's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is William Baek enrolled in Medicare?

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

When was this NPI record last updated?

The NPPES record for William Baek was last updated on February 6, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.