Quick answers
- Does James G. Bonnen accept Medicare assignment?
- Yes. Medicare's clinician data says James G. Bonnen 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 James G. Bonnen see?
- In 2024, CMS data shows 299 Original Medicare patients and 629 services for James G. Bonnen. This counts Original Medicare only and measures volume, not quality.
- What is James G. Bonnen's NPI number?
- 1003812264. 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 James G. Bonnen, 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 | 299 |
|---|---|
| Services billed to Medicare | 629 |
| Different services or procedures | 36 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)172 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)140 services
- Destruction of tissue of brain using mri guidance (0398T)69 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)63 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)41 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%
- Arthritis75%
- Diabetes38%
- Ischemic heart disease38%
- Anxiety33%
Hospitals where James G. Bonnen works
Medicare's Facility Affiliation Data lists James G. Bonnen at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Houston Methodist Clear Lake HospitalNassau Bay, TX · Acute Care Hospital · Medicare rating: 5 of 5 stars · CCN 450709
- Memorial Hermann Houston Physicians HospitalWebster, TX · Acute Care Hospital · CCN 670008
Practice locations
Addresses where James G. Bonnen is enrolled with Medicare (CMS data updated October 2, 2026).
- 201 Oak Dr S, Suite 104Lake Jackson, TX 77566 (979) 285‑0491
- 333 N Texas Ave, Suite 3200Webster, TX 77598 (281) 922‑5099
Group practices
Medicare enrollment lists James G. Bonnen as a member of this group (CMS data updated October 2, 2026).
- Texas Brain and Spine Center, P.A2 clinicians in the group
Specialties
- Neurosurgeryprimary
Other neurosurgeons in Texas
Clinicians with the same Medicare primary specialty in Texas — not a recommendation.
Other clinicians in Texas Brain and Spine Center, P.A
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Medical school | University Of Texas Medical Branch At Galveston |
|---|---|
| Graduation year | 1992 (34 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) | 1003812264 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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