1. Home
  2. Directory
  3. Virginia
  4. Manassas
  5. Optometrist
  6. NPI Profile

DR. EMILY C GUO OD
NPI 1669066866
Optometrist in Manassas, VA

Active since February 27, 2021PECOS Enrolled
74.39/100
CMS Quality Rating
8140 ASHTON AVE STE 120, MANASSAS, VA 20109(703) 361-3128 Get Directions Write a Review

NPPES record last updated: January 21, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jan 21, 2026, Dec 10, 2021, Nov 12, 2021 and 1 more (4 updates tracked since 2021).

About Dr. Emily C Guo Od NPPES

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

DR. EMILY C GUO OD (NPI 1669066866) is an individual optometrist in Manassas, Virginia, licensed in Virginia (0618002883) and active in the NPI registry since February 2021. She is enrolled in Medicare PECOS and is a graduate of Illinois College Of Optometry At Chicago (2020).

NPPES Registry Identity

NPI1669066866
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameDR. EMILY C GUOCredential: OD
Location Address8140 ASHTON AVE STE 120Manassas, VA 20109-5699
Mailing Address8140 Ashton Ave Ste 120Manassas, VA 20109-5699
Phone(703) 361-3128
Sole ProprietorNo
Medical School CMSIllinois College Of Optometry At ChicagoGraduated 2020
Enumeration DateFebruary 27, 2021
Last NPPES UpdateJanuary 21, 20264 updates tracked since enumeration
NPPES CertifiedJanuary 21, 2026
✔ NPI 1669066866 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 VA · 0618002883
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.
8140 ASHTON AVE STE 120, Manassas, VA 20109
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Emily C Guo Od is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9537567011
PECOS Enrollment IDI20211014000033, I20251205002347
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 9

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 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.
275 services266 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.
121 services107 patients
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.
99 services99 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.
64 services55 patients
Imaging of optic nerve 92133
Imaging of the optic nerve is a non-invasive procedure that captures detailed pictures of your optic nerve. It helps doctors assess eye health, particularly for conditions like glaucoma. It's painless, quick, and uses safe technology like MRI or OCT (Optical Coherence Tomography).
61 services50 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.
32 services29 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20109 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
$129.04 typical visit price
range $56.19 – $170.30
Typical copayment $32.26 (range $14.04 – $42.57)
Most-billed visit code 99204
Established Patient
$70.08 typical visit price
range $18.07 – $138.91
Typical copayment $17.52 (range $4.51 – $34.72)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

74.39/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality64.71
Promoting Interoperability97
Improvement Activities40
Cost52.43

Other Providers at the Same Location NPPES 3

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

NICOLE PENKE MD
Ophthalmology
8140 ASHTON AVE STE 120
MANASSAS, VA 20109
Prince William County (703) 361-3128
DR. BENJAMIN DANIEL ABRAMOWITZ MD
Ophthalmology
8140 ASHTON AVE STE 120
MANASSAS, VA 20109
Prince William County (703) 361-3128
MINH NGUYEN VO M.D.
Ophthalmology
8140 ASHTON AVE STE 120
MANASSAS, VA 20109
Prince William County (703) 361-3128

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 Emily Guo's NPI number?

The NPI number for Emily Guo is 1669066866. It was assigned to this individual provider in the NPPES registry on February 27, 2021.

Where is Emily Guo located?

Emily Guo practices at 8140 Ashton Ave Ste 120, Manassas, VA 20109. The listed phone number is (703) 361-3128.

What is Emily Guo's specialty?

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

Is Emily Guo enrolled in Medicare?

Yes. Emily Guo is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Emily Guo was last updated on January 21, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.