DR. NANCY GUZMAN MIES O.D.
NPI 1790934727
Optometrist in San Antonio, TX

Q: What is Nancy Mies's NPI number?

The NPI number for Nancy Mies is 1790934727. It was assigned to this individual provider in the NPPES registry on September 15, 2008.

Q: What is Nancy Mies's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Nancy Mies was last updated on April 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.

Active since September 15, 2008PECOS EnrolledAccepts Medicare Assignment

92.97/100

CMS Quality Rating

6626 W LOOP 1604 N STE 216, SAN ANTONIO, TX 78254(210) 647-4733(210) 647-4741 Get Directions Write a Review

NPPES record last updated: April 10, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 10, 2026, Aug 26, 2021, Jun 8, 2021 (3 updates tracked since 2021).

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About Dr. Nancy Guzman Mies O.d. NPPES

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

DR. NANCY GUZMAN MIES O.D. (NPI 1790934727) is an individual optometrist in San Antonio, Texas, licensed in Texas (7318TG) and active in the NPI registry since September 2008. She is enrolled in Medicare PECOS and is a graduate of Indiana University - School Of Optometry (2008).

NPPES Registry Identity

NPI1790934727

Entity TypeIndividualFemale

Primary Taxonomy152W00000X

Provider Legal NameDR. NANCY GUZMAN MIESCredential: O.D.

Location Address6626 W LOOP 1604 N STE 216San Antonio, TX 78254-6602

Mailing Address6626 W Loop 1604 N Ste 216San Antonio, TX 78254-6602 · (210) 647-4733 · Fax (210) 647-4741

Phone(210) 647-4733

Fax(210) 647-4741

Sole ProprietorNo

Medical School CMSIndiana University - School Of OptometryGraduated 2008

Enumeration DateSeptember 15, 2008

Last NPPES UpdateApril 10, 20263 updates tracked since enumeration

NPPES CertifiedApril 10, 2026

✔ NPI 1790934727 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 TX · 7318TG

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.

6626 W LOOP 1604 N STE 216, San Antonio, TX 78254

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Other Identifiers 1

Medicaid357434501TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections 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

Dr. Nancy Guzman Mies 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 ID5193873867

PECOS Enrollment IDI20090507000139

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 6

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 problem focused exam of visual system 92012

This is a routine check-up for existing patients focusing on the visual system. It involves examining your eyes to detect any potential issues or changes in your vision. It's a crucial part of maintaining good eye health.

291 services110 patients

Near infrared dual imaging of tear glands with interpretation and report 0507T

This procedure involves using near-infrared light to create detailed images of your tear glands. The images help identify any abnormalities or issues. After imaging, a specialist interprets the results and provides a comprehensive report.

116 services50 patients

Analysis of substance using immunoassay technique, multiple step method 83516

This procedure involves the use of an immunoassay, a highly sensitive technique, to detect and measure substances in your body. It involves multiple steps and is commonly used in diagnosing and monitoring various health conditions.

49 services24 patients

Fitting of contact lens for treatment of eye surface disease 92071

Fitting of contact lenses for eye surface disease involves a specialist assessing your eye condition and prescribing special lenses. These lenses help protect the eye surface, promote healing, and improve vision. It's a safe, non-invasive treatment.

29 services13 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.

23 services16 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.

15 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78254 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

$126.40 typical visit price

range $54.84 – $166.88

Typical copayment $31.60 (range $13.71 – $41.72)

Most-billed visit code 99204

Established Patient

$68.55 typical visit price

range $17.52 – $136.11

Typical copayment $17.13 (range $4.38 – $34.02)

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.

92.97/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

100

Improvement Activities

Cost

76.58

Other Providers at the Same Location NPPES

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

EPIC VISION CENTER PLLC

Optometrist

6626 W LOOP 1604 N STE 216
SAN ANTONIO, TX 78254

Bexar County (210) 647-4733

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 Nancy Mies's NPI number?

The NPI number for Nancy Mies is 1790934727. It was assigned to this individual provider in the NPPES registry on September 15, 2008.

Where is Nancy Mies located?

Nancy Mies practices at 6626 W Loop 1604 N Ste 216, San Antonio, TX 78254. The listed phone number is (210) 647-4733.

What is Nancy Mies's specialty?

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

Is Nancy Mies enrolled in Medicare?

Yes. Nancy Mies 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 Nancy Mies accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 6 other insurers list Nancy Mies 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 Nancy Mies was last updated on April 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.