Richard C. Lock, M.D.
Internal Medicine Physician · Houston, TX
Richard C. Lock, M.D. is an internal medicine physician with a practice address in Houston, Texas, and NPI 1558334219, issued on Feb 10, 2006. Check the license (Texas J7052, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Richard C. Lock
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- J7052 TX
Self-reported in NPPES; status is on the state search - Practice location
- 12121 Richmond Ave, Houston, TX 77082
- Phone
- (281) 752-8745
- Enumerated
- Feb 10, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (281) 752-8746
- Medicare enrollment
- Enrolled (PECOS I20100519000272); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At Houston, 1991
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 12121 Richmond Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mary Rose Agustin, AGANCP-BCAcute Care Nurse Practitioner1467846758
- Surainder Ajmani, M.D.Adolescent Medicine (Internal Medicine) Physician1821172354
- David Auer, M.D.Family Medicine Physician1104878776
- Kathleen Barton, RN, MSN, GNP-BCGerontology Nurse Practitioner1699791426
- Deborah Borgman, R.N.FNPPrimary Care Nurse Practitioner1073898896
Verify Richard C. Lock in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license J7052Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7.3 times the Medicare Part D claims of the average internal medicine physician in 2024
23,335 Medicare Part D claims for 1,347 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 361 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,296 claims
- Rosuvastatin Calcium1,198 claims
- Losartan Potassium1,004 claims
- Amlodipine Besylate848 claims
- Metoprolol Succinate809 claims
- Levothyroxine Sodium753 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,640.41
80 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Richard C. Lock among 9,175 internal medicine physician records in Texas
Richard C. Lock, M.D. is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1991 · median 2004 among the 6,088 with a school on file
- Record last updated2026 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,488 internal medicine physician records list a practice address in Houston
They are 1,488 of the 61,221 NPPES records with a practice address in Houston, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Houston → Internal Medicine Physician nationwide →
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Common questions
What is Richard C. Lock, M.D.'s NPI number?
Richard C. Lock, M.D.'s National Provider Identifier (NPI) is 1558334219, issued on Feb 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Richard C. Lock, M.D. located?
The NPPES record lists a practice address at 12121 Richmond Ave, Houston, TX, 77082. Phone: (281) 752-8745. Providers update this record themselves, so call before visiting.
How can I verify Richard C. Lock, M.D.'s license?
NPPES lists Texas license number J7052, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Richard C. Lock, M.D. prescribe under Medicare Part D?
In 2024, Richard C. Lock, M.D. had 23,335 Medicare Part D claims for 1,347 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.