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CHRISTINA WONG GRATTAN O.D.
NPI 1194150953
Optometrist in Torrance, CA

Active since September 11, 2013PECOS EnrolledAccepts Medicare Assignment
4825 TORRANCE BLVD STE 100, TORRANCE, CA 90503(310) 937-6585(310) 542-3809 Get Directions Write a Review

NPPES record last updated: August 10, 2023. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 10, 2023, Apr 12, 2021, Jan 13, 2017 and 1 more (4 updates tracked since 2016).

About Christina Wong Grattan O.d. NPPES

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

CHRISTINA WONG GRATTAN O.D. (NPI 1194150953) is an individual optometrist in Torrance, California, licensed in California (14709) and active in the NPI registry since September 2013. She is enrolled in Medicare PECOS and is a graduate of Other (2013).

NPPES Registry Identity

NPI1194150953
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameCHRISTINA WONG GRATTANCredential: O.D.
Location Address4825 TORRANCE BLVD STE 100Torrance, CA 90503-4167
Mailing Address4825 Torrance Blvd Ste 100Torrance, CA 90503-4167 · (310) 937-6585 · Fax (310) 542-3809
Phone(310) 937-6585
Fax(310) 542-3809
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateSeptember 11, 2013
Last NPPES UpdateAugust 10, 20234 updates tracked since enumeration
NPPES CertifiedAugust 10, 2023
✔ NPI 1194150953 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
License✔ Licensed in CA · 14709
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
4825 TORRANCE BLVD STE 100, Torrance, CA 90503
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Other Names 1

Former Name (1)Christina Wong O.d.

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and more.Insurance ›

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

Christina Wong Grattan O.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 ID1759504301
PECOS Enrollment IDI20140529000234
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 10

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.

New patient complete exam of visual system 92004
A new patient complete exam of the visual system is a thorough evaluation of your eyes and vision. It checks for any potential issues and assesses overall eye health. It includes tests for visual acuity, eye movement, and light response.
117 services117 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.
72 services57 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
60 services60 patients
Established patient complete exam of visual system 92014
An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.
58 services57 patients
Imaging of retina 92134
Imaging of the retina is a non-invasive procedure that captures detailed images of your eye's interior. This helps detect conditions like macular degeneration or retinal detachment. It's painless and takes only a few minutes.
54 services51 patients
Exam of visual field with extended testing 92083
An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.
33 services31 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90503 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Christina Grattan's NPI number?

The NPI number for Christina Grattan is 1194150953. It was assigned to this individual provider in the NPPES registry on September 11, 2013. The provider is also known as Christina Wong O.D..

Where is Christina Grattan located?

Christina Grattan practices at 4825 Torrance Blvd Ste 100, Torrance, CA 90503. The listed phone number is (310) 937-6585.

What is Christina Grattan's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Christina Grattan enrolled in Medicare?

Yes. Christina Grattan 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.

What insurance does Christina Grattan accept?

Health plans from Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and Providence Health Plan list Christina Grattan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Christina Grattan was last updated on August 10, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.