Hong Lok Lou, DO
NPI 1942821715 · Internal Medicine Physician · Arlington, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hong Lok Lou, DO is a Internal Medicine Physician provider in Arlington, TX (NPI 1942821715).
Provider details
- NPI number
- 1942821715
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
6 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
828 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 410 | $115 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 170 | $77 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 103 | $111 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 73 | $48 |
| Advance Care Planning, First 30 Minutes99497 | 52 | $74 |
| Critical Care, First 30-74 Minutes99291 | 20 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 19 | 18 |
| Cefdinir | 18 | 18 |
| Oxycodone Hcl | 16 | 16 |
| Pantoprazole Sodium | 13 | 12 |
| Ondansetronbrand: Ondansetron Odt | 13 | 13 |
| Hydralazine Hcl | 12 | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$65 across 3 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
- 2020-05-02
- Last updated
- 2023-07-14
- Certified
- 2023-07-14
Frequently asked questions
- What is Hong Lok Lou's NPI number?
- Hong Lok Lou's National Provider Identifier (NPI) is 1942821715, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hong Lok Lou's specialty?
- Hong Lok Lou is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Hong Lok Lou located?
- Hong Lok Lou's practice location on file with NPPES is 3301 Matlock Rd, Arlington, TX 76015-2908.
- What is Hong Lok Lou's phone number?
- The practice phone number listed in the NPPES registry for Hong Lok Lou is (817) 347-1141.
- Does Hong Lok Lou accept Medicare?
- Hong Lok Lou is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hong Lok Lou's NPI active?
- Yes — Hong Lok Lou's NPI (1942821715) is active in the NPPES registry as of the last update on 2023-07-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.