Quick answers
- Does Carlos R. Herrera accept Medicare assignment?
- Yes. Medicare's clinician data says Carlos R. Herrera accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Carlos R. Herrera see?
- In 2024, CMS data shows 178 Original Medicare patients and 2,739 services for Carlos R. Herrera. This counts Original Medicare only and measures volume, not quality.
- What is Carlos R. Herrera's NPI number?
- 1003858143. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Carlos R. Herrera, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 178 |
|---|---|
| Services billed to Medicare | 2,739 |
| Different services or procedures | 46 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)1,083 services
- Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes (99458)383 services
- Management using the results of remote vital sign monitoring per calendar month, first 20 minutes (99457)262 services
- Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month (99439)182 services
- Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days (99454)182 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Diabetes63%
- Chronic kidney disease48%
- Heart failure46%
- Ischemic heart disease43%
Practice locations
Addresses where Carlos R. Herrera is enrolled with Medicare (CMS data updated October 2, 2026).
- 709 W 42nd StHouston, TX 77018 (713) 894‑2707
- 7601 W Sam Houston Pkwy S, Suite 400Houston, TX 77072 (713) 981‑6588
Group practices
Medicare enrollment lists Carlos R. Herrera as a member of this group (CMS data updated October 2, 2026).
- Clarewood Clinic PA2 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Other clinicians in Clarewood Clinic PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Harvard Medical School |
| Graduation year | 1983 (43 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1003858143 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians