NPI age
19 years
Enumerated 2007-03-09
● Active
Type 1 · Individual
DR. John Parks Trowbridge, M.D.
Trowbridge is 1 of 1 preventive medicine providers in Humble and 1 of 9 in Texas.
Primary specialty
Preventive Medicine
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2013-04-11
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 9 active preventive medicine providers in Texas.
NPI age
19 years
≈ at median (19 yr)
State licenses
1 state
11% of peers hold multiple states
Subspecialties
0
66% of peers hold subspecialties
NPI lifetime · 2007 → 2026
2007-03Enumerated in NPPES
2007
2026
Where they practice
Practice location
9816 Memorial Blvd, Suite 205
Humble, TX 773384255
Mailing address
9816 Memorial Blvd, Suite 205
Humble, TX 773384255
Specialties
-
Preventive Medicine PrimaryMedical toxicologists are physicians who specialize in the prevention, evaluation, treatment and monitoring of injury and illness from exposures to drugs and chemicals, as well as biological and radiological agents. Medical...
Practice context
Part of a multi-provider practice. 12 other active providers share this practice address in NPPES.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.