Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ALDEN PAIGE GREGSTON MD
NPI 1538620174
Ophthalmology in Longview, TX

Q: 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.

Q: What is Alden Gregston's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Q: When was this NPI record last updated?

The NPPES record for Alden Gregston was last updated on August 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 days 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 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 26, 2026. Verified against the NPPES registry weekly; last sync: September 13, 2026.

Record update history: Aug 26, 2026, Jul 29, 2024, Jul 26, 2024 (3 updates tracked since 2024).

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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 ophthalmology provider 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 Taxonomy207W00000X

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

Phone(903) 234-0771

Sole ProprietorNo

Medical School CMSTexas A & M University System, Hsc, College Of MedicineGraduated 2019

Enumeration DateMarch 27, 2019

Last NPPES UpdateAugust 26, 20263 updates tracked since enumeration

NPPES CertifiedAugust 26, 2026

✔ NPI 1538620174 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in TX · V2089

Definition

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

2394 H G MOSLEY PKWY, Longview, TX 75604

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Secondary Practice Location 1

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

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

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.

CHARLES L. HEATON , M.D. P.A.

Ophthalmology