NPPES file of Aug 9, 2026

Hong Lok Lou, DO

Internal Medicine Physician · Arlington, TX

Hong Lok Lou, DO is an internal medicine physician with a practice address in Arlington, Texas, and NPI 1942821715, issued on May 2, 2020. Check the license on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1942821715
Name
Hong Lok Lou
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
OP61391313 WA
Self-reported in NPPES; status is on the state search
Practice location
3301 Matlock RD, Arlington, TX 76015
Phone
(817) 347-1141
Enumerated
May 2, 2020
Record last updated
Jul 14, 2023
Medicare enrollment
Enrolled (PECOS I20230727003841); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3301 Matlock RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. George Abatso, MDEmergency Medicine Physician1265417786
  2. Marien Abud, MDEmergency Medicine Physician1255917811
  3. Sarah Abuelayyan, MDStudent in an Organized Health Care Education/Training Program1801655485
  4. Ifeoluwa Adesina-AinaStudent in an Organized Health Care Education/Training Program1821790270
  5. Shivani Agarwal, MDStudent in an Organized Health Care Education/Training Program1619736790
  6. Kimberly Agwu, APRN, AGACNP-BCAcute Care Nurse Practitioner1689217721

Verify Hong Lok Lou in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical BoardCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

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88% fewer Medicare Part D claims than the average internal medicine physician in 2024

394 Medicare Part D claims for 136 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 32 claims were for opioids.

  1. Hong Lok Lou394
  2. Specialty average3,176

Most prescribed

  1. Prednisone19 claims
  2. Cefdinir18 claims
  3. Oxycodone Hcl16 claims
  4. Ondansetron Odt13 claims
  5. Pantoprazole Sodium13 claims
  6. Hydralazine Hcl12 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: $64.57

3 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. 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.

  1. Hong Lok Lou$64.57
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. South Sound Inpatient Physicians PLLCPuyallup, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Hong Lok Lou among 9,175 internal medicine physician records in Texas

Hong Lok Lou, DO 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 2020, is newer than 85% of them.

  • NPI issued2020 · 85% of these records are older, 12% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2020 · median 2004 among the 6,088 with a school on file
  • Record last updated2023 · 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).

100 internal medicine physician records list a practice address in Arlington

They are 100 of the 5,219 NPPES records with a practice address in Arlington, and 9,175 internal medicine physician records in Texas.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Mark Batrice, M.D.Arlington, TX 760151164478038
  2. Hamid Burney, MDArlington, TX 760151134125453
  3. Alain Folefack, MDArlington, TX 760151447350822
  4. Craig Henry, MDArlington, TX 760151619011988
  5. Helen Lim, MDArlington, TX 760151831208073
  6. Bernard McGowen, MDArlington, TX 760151043252257
  7. Joe Perryman, MDArlington, TX 760151649224312
  8. Thomas Purgason, MDArlington, TX 760151831161637

Common questions

What is Hong Lok Lou, DO's NPI number?

Hong Lok Lou, DO's National Provider Identifier (NPI) is 1942821715, issued on May 2, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Hong Lok Lou, DO located?

The NPPES record lists a practice address at 3301 Matlock RD, Arlington, TX, 76015. Phone: (817) 347-1141. Providers update this record themselves, so call before visiting.

How can I verify Hong Lok Lou, DO's license?

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 Hong Lok Lou, DO prescribe under Medicare Part D?

In 2024, Hong Lok Lou, DO had 394 Medicare Part D claims for 136 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.