Harold Walton, M.D.
NPI 1194726273 · Internal Medicine Physician · Houston, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Harold Walton, M.D. is a Internal Medicine Physician provider in Houston, TX (NPI 1194726273).
Provider details
- NPI number
- 1194726273
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- K3873 (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
459 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 307 | $130 |
| Administration of Influenza Virus VaccineG0008 | 49 | $33 |
| Hemoglobin A1c Level83036 | 39 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 37 | $138 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 16 | $176 |
| Admn Sarscov2 Vacc 1 Dose90480 | 11 | $44 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 122 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 355 | 100 |
| Atorvastatin Calcium | 353 | 101 |
| Levothyroxine Sodium | 307 | 88 |
| Amlodipine Besylate | 291 | 87 |
| Omeprazole | 239 | 73 |
| Metoprolol Succinate | 226 | 65 |
| Rosuvastatin Calcium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$58 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
- 2005-08-10
- Last updated
- 2023-03-14
- Certified
- 2023-03-14
Frequently asked questions
- What is Harold Walton's NPI number?
- Harold Walton's National Provider Identifier (NPI) is 1194726273, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Harold Walton's specialty?
- Harold Walton is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Harold Walton located?
- Harold Walton's practice location on file with NPPES is 11452 Space Center Blvd, Houston, TX 77059-3599.
- What is Harold Walton's phone number?
- The practice phone number listed in the NPPES registry for Harold Walton is (713) 486-6200.
- Does Harold Walton accept Medicare?
- Harold Walton is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Harold Walton's NPI active?
- Yes — Harold Walton's NPI (1194726273) is active in the NPPES registry as of the last update on 2023-03-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.