TAMMY CHEN NURSE PRACTITIONER
NPI 1255792875
Nurse Practitioner - Adult Health in Fullerton, CA

Active since March 09, 2016PECOS EnrolledAccepts Medicare Assignment
150 LAGUNA RD STE A, FULLERTON, CA 92835(714) 525-8822(714) 525-5193 Get Directions Write a Review

NPPES record last updated: December 19, 2018. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 19, 2018, Nov 7, 2018, Mar 24, 2016 (3 updates tracked since 2016).

About Tammy Chen Nurse Practitioner NPPES

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

TAMMY CHEN NURSE PRACTITIONER (NPI 1255792875) is an individual adult health provider in Fullerton, California, licensed in California (NP95003688) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS and is a graduate of Other (2015).

NPPES Registry Identity

NPI1255792875
Entity TypeIndividualFemale
Primary Taxonomy363LA2200X
Provider Legal NameTAMMY CHENCredential: NURSE PRACTITIONER
Location Address150 LAGUNA RD STE AFullerton, CA 92835-3614
Mailing Address150 Laguna Rd, Suite AFullerton, CA 92535-3614 · (714) 525-8822 · Fax (714) 525-5193
Fax(714) 525-5193
Sole ProprietorYes
Medical School CMSOtherGraduated 2015
Enumeration DateMarch 9, 2016
Last NPPES UpdateDecember 19, 20183 updates tracked since enumeration
NPI 1255792875 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
License Licensed in CA · NP95003688
150 LAGUNA RD STE A, Fullerton, CA 92835

Other Names 1

Other Name (5)Tammy Chen Nurse Practitioner

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

Tammy Chen Nurse Practitioner 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 ID8224320643
PECOS Enrollment IDI20160706000237
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 3

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
57 services28 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
48 services24 patients
Telephone medical discussion with physician, 11-20 minutes 99442
This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.
36 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92835 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
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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 8

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

Clinic/Center (Pain)
150 LAGUNA RD STE A
FULLERTON, CA 92835
Nurse Practitioner (Family)
150 LAGUNA RD STE A
FULLERTON, CA 92835
Pain Medicine (Interventional Pain Medicine)
150 LAGUNA RD STE A
FULLERTON, CA 92835
Acupuncturist
150 LAGUNA RD STE A
FULLERTON, CA 92835
Acupuncturist
150 LAGUNA RD STE A
FULLERTON, CA 92835
Anesthesiology (Pain Medicine)
150 LAGUNA RD STE A
FULLERTON, CA 92835
Physical Medicine & Rehabilitation (Pain Medicine)
150 LAGUNA RD STE A
FULLERTON, CA 92835
Pain Medicine (Interventional Pain Medicine)
150 LAGUNA RD STE A
FULLERTON, CA 92835

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 Tammy Chen's NPI number?

The NPI number for Tammy Chen is 1255792875. It was assigned to this individual provider in the NPPES registry on March 9, 2016. The provider is also known as Tammy Chen Nurse Practitioner.

Where is Tammy Chen located?

Tammy Chen practices at 150 Laguna Rd Ste A, Fullerton, CA 92835. The listed phone number is (714) 525-8822.

What is Tammy Chen's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Tammy Chen enrolled in Medicare?

Yes. Tammy 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 Tammy Chen was last updated on December 19, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.