ALDEN PAIGE GREGSTON MD
NPI 1538620174
Ophthalmology - Pediatric Ophthalmology and Strabismus Specialist in Longview, TX

Active since March 27, 2019PECOS EnrolledAccepts Medicare Assignment
2394 H G MOSLEY PKWY, LONGVIEW, TX 75604(903) 234-0771 Get Directions Write a Review

NPPES record last updated: August 28, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 29, 2024, Jul 26, 2024 (2 updates tracked since 2024).

About Alden Paige Gregston Md NPPES

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

ALDEN PAIGE GREGSTON MD (NPI 1538620174) is an individual pediatric ophthalmology and strabismus specialist in Longview, Texas, licensed in Texas (V2089) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS, is affiliated with Christus Good Shepherd Medical Center, and maintains a secondary practice location in Tyler.

NPPES Registry Identity

NPI1538620174
Entity TypeIndividualFemale
Primary Taxonomy207WX0110X
Provider Legal NameALDEN PAIGE GREGSTONCredential: MD
Location Address2394 H G MOSLEY PKWYLongview, TX 75604-3661
Mailing Address3355 Earl Campbell PkwyTyler, TX 75701-8435 · (903) 526-0444 · Fax (903) 595-6650
Sole ProprietorNo
Medical School CMSTexas A & M University System, Hsc, College Of MedicineGraduated 2019
Enumeration DateMarch 27, 2019
Last NPPES UpdateAugust 28, 20252 updates tracked since enumeration
NPPES CertifiedAugust 28, 2025
NPI 1538620174 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyOphthalmology · Pediatric Ophthalmology and Strabismus SpecialistAllopathic & Osteopathic Physicians
Taxonomy Code207WX0110X
License Licensed in TX · V2089
Definition
An ophthalmologist who specializes in pediatric ophthalmology and strabismus management. The subspecialty includes the medical and surgical management of eye disorders found in children. Some of the more common disorders include amblyopia, strabismus, refractive error, cataract and glaucoma. These disorders may be related to neurological and endocrinological diseases, trauma, or aging changes in the extraocular muscles requiring medical, optical and surgical management.
2394 H G MOSLEY PKWY, Longview, TX 75604

Secondary Practice Location 1

Location 13355 Earl Campbell PkwyTyler, TX 75701-8435 · Phone (903) 526-0444

Accepted 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

Alden Paige Gregston 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 ID2466899968
PECOS Enrollment IDI20240719003431
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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Christus Good Shepherd Medical Center

Acute Care Hospitals · Longview, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450032
Location700 E Marshall AveLongview, TX 75601 · Gregg County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75604 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.

Other Providers at the Same Location NPPES 5

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

Ophthalmology
2394 H G MOSLEY PKWY
LONGVIEW, TX 75604
Optometrist
2394 H G MOSLEY PKWY
LONGVIEW, TX 75604
Ophthalmology
2394 H G MOSLEY PKWY
LONGVIEW, TX 75604
Optometrist
2394 H G MOSLEY PKWY
LONGVIEW, TX 75604
Optometrist
2394 H G MOSLEY PKWY
LONGVIEW, TX 75604

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 Alden Gregston's NPI number?

The NPI number for Alden Gregston is 1538620174. It was assigned to this individual provider in the NPPES registry on March 27, 2019.

Where is Alden Gregston located?

Alden Gregston practices at 2394 H G Mosley Pkwy, Longview, TX 75604. The listed phone number is (903) 234-0771.

What is Alden Gregston's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Pediatric Ophthalmology and Strabismus Specialist, with taxonomy code 207WX0110X.

Is Alden Gregston enrolled in Medicare?

Yes. Alden Gregston 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 Alden Gregston 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 3 other insurers list Alden Gregston 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.

Is Alden Gregston affiliated with any hospitals?

According to CMS data, Alden Gregston is affiliated with Christus Good Shepherd Medical Center.

When was this NPI record last updated?

The NPPES record for Alden Gregston was last updated on August 28, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.