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SOPHIA CHEN D.O.
NPI 1225371016
Internal Medicine - Geriatric Medicine in Martinez, CA

Active since April 01, 2013PECOS EnrolledAccepts Medicare Assignment
2500 ALHAMBRA AVE, MARTINEZ, CA 94553(925) 370-5200(925) 370-5275 Get Directions Write a Review

NPPES record last updated: December 16, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 16, 2021, Dec 1, 2017 (2 updates tracked since 2017).

About Sophia Chen D.o. NPPES

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

SOPHIA CHEN D.O. (NPI 1225371016) is an individual geriatric medicine provider in Martinez, California, licensed in California (20A13633) and active in the NPI registry since April 2013. She is enrolled in Medicare PECOS and is a graduate of Other (2013).

NPPES Registry Identity

NPI1225371016
Entity TypeIndividualFemale
Primary Taxonomy207RG0300X
Provider Legal NameSOPHIA CHENCredential: D.O.
Location Address2500 ALHAMBRA AVEMartinez, CA 94553-3156
Mailing Address12989 Ten Oak WaySaratoga, CA 95070-4420
Phone(925) 370-5200
Fax(925) 370-5275
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateApril 1, 2013
Last NPPES UpdateDecember 16, 20212 updates tracked since enumeration
✔ NPI 1225371016 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RG0300X
License✔ Licensed in CA · 20A13633
Definition
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.
2500 ALHAMBRA AVE, Martinez, CA 94553
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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

Sophia Chen D.o. 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 ID8224336342
PECOS Enrollment IDI20160406000292
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 94553 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
$202.35 typical visit price
range $69.00 – $202.35
Typical copayment $50.58 (range $17.25 – $50.58)
Most-billed visit code 99205
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.

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.

JOHN S HAWKINS
Family Medicine
2500 ALHAMBRA AVE
MARTINEZ, CA 94553
Contra Costa County (925) 370-5200
HYAEJEEN JEON
Student in an Organized Health Care Education/Training Program
2500 ALHAMBRA AVE
MARTINEZ, CA 94553
Contra Costa County (925) 370-5117
RONALD POWER DDS
Dentist
2500 ALHAMBRA AVE
MARTINEZ, CA 94553
Contra Costa County (925) 370-5110
DR. SARA JOSEPHINE RICHEY-LUCERO M.D.
General Practice
2500 ALHAMBRA AVE
MARTINEZ, CA 94553
Contra Costa County (925) 370-5182
CHARLOTTE STANDEFER
Family Medicine
2500 ALHAMBRA AVE
MARTINEZ, CA 94553
Contra Costa County (925) 370-5110
RICHARD NAGLE
Surgery
2500 ALHAMBRA AVE
MARTINEZ, CA 94553
Contra Costa County (925) 370-5110
CHRISTIAN MICHAEL EISERT MD, MPH
Otolaryngology
2500 ALHAMBRA AVE
MARTINEZ, CA 94553
Contra Costa County (925) 370-5000
ZOHAIB ABBASI
Psychiatry & Neurology (Psychiatry)
2500 ALHAMBRA AVE, PES
MARTINEZ, CA 94553
Contra Costa County (415) 409-9492

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 Sophia Chen's NPI number?

The NPI number for Sophia Chen is 1225371016. It was assigned to this individual provider in the NPPES registry on April 1, 2013.

Where is Sophia Chen located?

Sophia Chen practices at 2500 Alhambra Ave, Martinez, CA 94553. The listed phone number is (925) 370-5200.

What is Sophia Chen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Is Sophia Chen enrolled in Medicare?

Yes. Sophia Chen 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 Sophia Chen was last updated on December 16, 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.