Greydon Callaway, PT, DPT
NPI 1821122078 · Physical Therapist · Dallas, TX
Enrolled with Medicare as Practitioner - Physical Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Greydon Callaway, PT, DPT is a Physical Therapist provider in Dallas, TX (NPI 1821122078).
Provider details
- NPI number
- 1821122078
- Entity type
- Individual
- Primary specialty
- Physical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- PT, DPT
- Sex
- Male
- Sole proprietor
- No
- License
- 1148889 (TX)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-16
- Last updated
- 2025-04-08
- Certified
- 2025-04-08
Frequently asked questions
- What is Greydon Callaway's NPI number?
- Greydon Callaway's National Provider Identifier (NPI) is 1821122078, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Greydon Callaway's specialty?
- Greydon Callaway is listed in the NPPES registry with a primary specialty of Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Greydon Callaway located?
- Greydon Callaway's practice location on file with NPPES is 3500 Oak Lawn Ave Ste 240, Dallas, TX 75219-4329.
- What is Greydon Callaway's phone number?
- The practice phone number listed in the NPPES registry for Greydon Callaway is (214) 528-3378.
- Does Greydon Callaway accept Medicare?
- Greydon Callaway is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Greydon Callaway's NPI active?
- Yes — Greydon Callaway's NPI (1821122078) is active in the NPPES registry as of the last update on 2025-04-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.