CHARLES GREGORY, DO PA
NPI 1952420804
Family Medicine in Portland, TX
About Charles Gregory, Do Pa NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHARLES GREGORY, DO PA (NPI 1952420804) is a healthcare organization registered as a family medicine in Portland, Texas and active in the NPI registry since March 2007. The organization holds a CLIA Waiver certificate valid through November 28, 2027 and lists Charles Gregory, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Charles Gregory, Do Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by January 31, 2027
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
3Medicare enrollment records show 3 clinicians reassign Medicare billing to Charles Gregory, Do PA, which bills Medicare for the services they deliver. Of these, 2 practice at this address and 3 within 10 miles. They are listed nearest first.
Clinicians, nearest first (3)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 45D1048310
Charles Gregory Family Medicine Do · Portland, TXFrequently 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 Charles Gregory, Do PA's NPI number?
The NPI number for Charles Gregory, Do PA is 1952420804. It was assigned to this organization in the NPPES registry on March 29, 2007.
Where is Charles Gregory, Do PA located?
Charles Gregory, Do PA is located at 1500 Wildcat Dr Ste C, Portland, TX 78374. The listed phone number is (361) 643-9800.
What is Charles Gregory, Do PA's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Charles Gregory, Do PA enrolled in Medicare?
Yes. Charles Gregory, Do PA is registered in the Medicare PECOS enrollment system.
When is Charles Gregory, Do PA's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Texas, Clinic/Group Practice) is due for revalidation by January 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Charles Gregory, Do PA?
According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to Charles Gregory, Do PA, in Family Practice and Nurse Practitioner. A 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 the clinician's services. Of these, 2 practice at this address and 3 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Charles Gregory, Do PA hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 45D1048310) is associated with this NPI, valid through November 28, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for Charles Gregory, Do PA was last updated on August 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Charles Gregory, Do Pa · NPI 1952420804
Family Medicine organization in Portland, Texas. Organization record, active in the CMS NPPES registry since March 29, 2007.
## Identity
- **NPI:** 1952420804 (Entity type: Organization)
- **Enumerated:** March 29, 2007
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **Organization subpart:** No
- **Authorized official:** Charles Gregory, OWNER
## Practice location
- **Address:** 1500 WILDCAT DR STE C, Portland, TX 78374-2826
- **Phone:** (361) 643-9800 · **Fax:** (361) 643-5112
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** January 31, 2027 (Non-DME Part B, Texas, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 3 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (2), Family Practice (1); 2 practice at this address and 3 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 11, 2026
- **Other identifiers:** Medicaid 179568401 (TX); Other 0037MY (TX)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1952420804) · Data from the CMS NPPES public registry.