Richard Lock, M.D.
NPI 1558334219 · Internal Medicine Physician · Houston, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Richard Lock, M.D. is a Internal Medicine Physician provider in Houston, TX (NPI 1558334219).
Provider details
- NPI number
- 1558334219
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- J7052 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,276 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 472 | $95 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 306 | $134 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 197 | $138 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 186 | $20 |
| Administration of Influenza Virus VaccineG0008 | 60 | $33 |
| Initial Preventive Physical Examination; Face-To-Face Visit, Services Limited to New Beneficiary During the First 12 Months of Medicare EnrollmentG0402 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 209 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,296 | 387 |
| Rosuvastatin Calcium | 1,198 | 385 |
| Losartan Potassium | 1,004 | 305 |
| Amlodipine Besylate | 848 | 259 |
| Metoprolol Succinate | 809 | 239 |
| Levothyroxine Sodium | 753 | 202 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,640 across 80 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-10
- Last updated
- 2007-07-08
Frequently asked questions
- What is Richard Lock's NPI number?
- Richard Lock's National Provider Identifier (NPI) is 1558334219, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Richard Lock's specialty?
- Richard Lock is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Richard Lock located?
- Richard Lock's practice location on file with NPPES is 12121 Richmond Ave, Houston, TX 77082-2432.
- What is Richard Lock's phone number?
- The practice phone number listed in the NPPES registry for Richard Lock is (281) 752-8745.
- Does Richard Lock accept Medicare?
- Richard Lock is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Richard Lock's NPI active?
- Yes — Richard Lock's NPI (1558334219) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.