RICHARD C. LOCK, M.D., P.A.
NPI 1508839036
Internal Medicine in Houston, TX
About Richard C. Lock, M.d., P.a. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RICHARD C. LOCK, M.D., P.A. (NPI 1508839036) is a healthcare organization registered as an internal medicine in Houston, Texas and active in the NPI registry since February 2006. The organization holds a CLIA Microscopy certificate valid through May 27, 2028 and lists Julie Wong, Claim Manager, 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)
Richard C. Lock, M.d., P.a. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by November 30, 2026
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
Medicare enrollment records show 1 clinician reassigns Medicare billing to Richard C. Lock, M.D., P.A., which bills Medicare for the services this clinician delivers.
Clinician (1)
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 for Provider-Performed Microscopy Procedures (PPMP) 45D0999897
Richard C Lock, MD, PA · Houston, 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 Richard C. Lock, M.D., P.A.'s NPI number?
The NPI number for Richard C. Lock, M.D., P.A. is 1508839036. It was assigned to this organization in the NPPES registry on February 7, 2006.
Where is Richard C. Lock, M.D., P.A. located?
Richard C. Lock, M.D., P.A. is located at 12121 Richmond Ave., Suite 413, Houston, TX 77082. The listed phone number is (281) 752-8745.
What is Richard C. Lock, M.D., P.A.'s specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Richard C. Lock, M.D., P.A. enrolled in Medicare?
Yes. Richard C. Lock, M.D., P.A. is registered in the Medicare PECOS enrollment system.
When is Richard C. Lock, M.D., P.A.'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 November 30, 2026. 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 Richard C. Lock, M.D., P.A.?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Richard C. Lock, M.D., P.A.. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Richard C. Lock, M.D., P.A. hold a CLIA laboratory certificate?
Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 45D0999897) is associated with this NPI, valid through May 27, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for Richard C. Lock, M.D., P.A. was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.
# Richard C. Lock, M.d., P.a. · NPI 1508839036
Internal Medicine organization in Houston, Texas. Organization record, active in the CMS NPPES registry since February 7, 2006.
## Identity
- **NPI:** 1508839036 (Entity type: Organization)
- **Enumerated:** February 7, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Organization subpart:** No
- **Authorized official:** Julie Wong, CLAIM MANAGER
## Practice location
- **Address:** 12121 RICHMOND AVE., SUITE 413, Houston, TX 77082
- **Phone:** (281) 752-8745 · **Fax:** (281) 752-8746
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** November 30, 2026 (Non-DME Part B, Texas, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 1 clinician (Internal Medicine) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 22, 2020
- **Other identifiers:** Medicaid 1552879 (TX); Other 0083HL (TX)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1508839036) · Data from the CMS NPPES public registry.