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DR. YUJIAN GUO M.D.
NPI 1063680023
Psychiatry & Neurology - Neurology in Fontana, CA

Active since February 13, 2008PECOS EnrolledAccepts Medicare Assignment
9985 SIERRA AVE, MOB-2, BASEMENT, FONTANA, CA 92335(909) 427-5000 Get Directions Write a Review

NPPES record last updated: November 30, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Yujian Guo M.d. NPPES

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

DR. YUJIAN GUO M.D. (NPI 1063680023) is an individual neurology provider in Fontana, California, licensed in California (A97549) and active in the NPI registry since February 2008. She is enrolled in Medicare PECOS and is a graduate of Other (1996).

NPPES Registry Identity

NPI1063680023
Entity TypeIndividualFemale
Primary Taxonomy2084N0400X
Provider Legal NameDR. YUJIAN GUOCredential: M.D.
Location Address9985 SIERRA AVE, MOB-2, BASEMENTFontana, CA 92335-6720
Mailing Address9985 Sierra Ave, Mob-2, BasementFontana, CA 92335-6720 · (909) 427-5000
Phone(909) 427-5000
Sole ProprietorNo
Medical School CMSOtherGraduated 1996
Enumeration DateFebruary 13, 2008
Last NPPES UpdateNovember 30, 2021
✔ NPI 1063680023 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 · A97549
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.
9985 SIERRA AVE, Fontana, CA 92335
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Yujian Guo 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 ID5698812550
PECOS Enrollment IDI20091026000275
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Yujian Guo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Southern California Permanente Medical Group
0.2 mi
Health Maintenance Organization
9961 SIERRA AVE
Fontana, CA 92335
  • Reassigned Medicare billing, California enrollment
  • Also billed through NPI 1952333460 (California)
  • 5,228 clinicians in this Medicare group
NPI 1689606196 (909) 427-3910
Beaver Medical Group P C
14 mi
Family Medicine
2 WEST FERN AVENUE
Redlands, CA 92373
  • Reassigned Medicare billing, California enrollment
  • 635 clinicians in this Medicare group
NPI 1649503319 (909) 793-3311

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92335 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 20

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

NAINESH K. GANDHI MD
Internal Medicine (Cardiovascular Disease)
9985 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (866) 454-3485
DR. PAYMON MESGARZADEH M.D.
Internal Medicine (Cardiovascular Disease)
9985 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-5000
DR. MARK JONATHAN LANDAU M.D., PH.D.
Plastic Surgery
9985 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (833) 574-2273
MANUEL RICARDO MOJICA JR. M.D.
Internal Medicine
9985 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-5000
MR. FRED GADEA III
Physical Therapy Assistant
9985 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-5000
DR. ADEEL HUSAIN M.D.
Orthopaedic Surgery (Adult Reconstructive Orthopaedic Surgery)
9985 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-5000
PATRICIA LOTICH OTR
Occupational Therapist
9985 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-6996
JOHN D TUCKER
Radiology (Diagnostic Radiology)
9985 SIERRA AVE, BLDG. #3, DEPT. OF RADIOLOGY
FONTANA, CA 92335
San Bernardino County (909) 427-7649

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 Yujian Guo's NPI number?

The NPI number for Yujian Guo is 1063680023. It was assigned to this individual provider in the NPPES registry on February 13, 2008.

Where is Yujian Guo located?

Yujian Guo practices at 9985 Sierra Ave Mob-2, Basement, Fontana, CA 92335. The listed phone number is (909) 427-5000.

What is Yujian Guo's specialty?

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

Is Yujian Guo enrolled in Medicare?

Yes. Yujian Guo 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.

Which organizations bill Medicare for Yujian Guo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Yujian Guo reassigns Medicare benefits to 2 organizations: Southern California Permanente Medical Group (Fontana, CA) and Beaver Medical Group P C (Redlands, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Yujian Guo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Yujian Guo was last updated on November 30, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.