DR. GREG WINSTON ZHANG MD, MS
NPI 1366173296
Preventive Medicine - Undersea and Hyperbaric Medicine in Denison, TX
About Dr. Greg Winston Zhang Md, Ms NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GREG WINSTON ZHANG MD, MS (NPI 1366173296) is an individual undersea and hyperbaric medicine provider in Denison, Texas, licensed in Texas (V8086) and active in the NPI registry since June 2022. He is enrolled in Medicare PECOS, maintains a secondary practice location in Galveston, and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Greg Winston Zhang Md, Ms 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.
Medicare Billing Reassignments
2Medicare enrollment records show Greg Zhang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Hurst, TX 76054
- Reassigned Medicare billing, Texas enrollment
- 7 clinicians in this Medicare group
Oklahoma City, OK 73159
- Reassigned Medicare billing, Texas enrollment
- 7 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 75020 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Greg Zhang's NPI number?
The NPI number for Greg Zhang is 1366173296. It was assigned to this individual provider in the NPPES registry on June 21, 2022.
Where is Greg Zhang located?
Greg Zhang practices at 4616 N Hwy 75 Suite 190, Denison, TX 75020. The listed phone number is (903) 698-6015.
What is Greg Zhang's specialty?
The primary specialty registered for this NPI is Preventive Medicine, specializing in Undersea and Hyperbaric Medicine, with taxonomy code 2083P0011X.
Is Greg Zhang enrolled in Medicare?
Yes. Greg Zhang 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.
Which organizations bill Medicare for Greg Zhang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Greg Zhang reassigns Medicare benefits to 2 organizations: Diagnostex Consultants PLLC (Hurst, TX) and Dynamic Wound Care LLC (Oklahoma City, OK). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Greg Zhang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Greg Zhang was last updated on July 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Dr. Greg Winston Zhang, MD, MS · NPI 1366173296
Undersea and Hyperbaric Medicine physician in Denison, Texas. Individual provider, active in the CMS NPPES registry since June 21, 2022.
## Identity
- **NPI:** 1366173296 (Entity type: Individual)
- **Enumerated:** June 21, 2022
- **Primary specialty:** Preventive Medicine - Undersea and Hyperbaric Medicine · taxonomy 2083P0011X
- **State license:** V8086 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 4616 N HWY 75, SUITE 190, Denison, TX 75020
- **Phone:** (903) 698-6015
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Diagnostex Consultants PLLC (NPI 1003134024, Hurst, TX); Dynamic Wound Care LLC (NPI 1598541427, Oklahoma City, OK) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** July 4, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1366173296) · Data from the CMS NPPES public registry.