DR. CAROLINE TASHDJIAN MD
NPI 1609405042
Internal Medicine in Stockton, CA

Q: What is Caroline Tashdjian's NPI number?

The NPI number for Caroline Tashdjian is 1609405042. It was assigned to this individual provider in the NPPES registry on April 7, 2020.

Q: What is Caroline Tashdjian's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Active since April 07, 2020PECOS EnrolledAccepts Medicare Assignment

1800 N CALIFORNIA ST, STOCKTON, CA 95204(209) 547-7177 Get Directions Write a Review

NPPES record last updated: January 2, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Jan 2, 2026, Apr 7, 2020 (2 updates tracked since 2020).

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About Dr. Caroline Tashdjian Md NPPES

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

DR. CAROLINE TASHDJIAN MD (NPI 1609405042) is an individual internal medicine provider in Stockton, California, licensed in California (A187373) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2016).

NPPES Registry Identity

NPI1609405042

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameDR. CAROLINE TASHDJIANCredential: MD

Location Address1800 N CALIFORNIA STStockton, CA 95204-6019

Mailing Address1800 N California StStockton, CA 95204-6019

Phone(209) 547-7177

Sole ProprietorNo

Medical School CMSOtherGraduated 2016

Enumeration DateApril 7, 2020

Last NPPES UpdateJanuary 2, 20262 updates tracked since enumeration

NPPES CertifiedJanuary 2, 2026

✔ NPI 1609405042 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CA · A187373

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

1800 N CALIFORNIA ST, Stockton, CA 95204

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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. Caroline Tashdjian Md 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 ID4880170539

PECOS Enrollment IDI20260112003707

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 95204 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

$133.94 typical visit price

range $58.87 – $176.60

Typical copayment $33.48 (range $14.71 – $44.15)

Most-billed visit code 99204

Established Patient

$103.36 typical visit price

range $19.28 – $144.60

Typical copayment $25.84 (range $4.82 – $36.15)

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.

MONICA CHAPPIDI DO

Student in an Organized Health Care Education/Training Program