Quick answers
- Where does John P. Martens see patients?
- Medicare's clinician data lists 1 practice location in Lakewood, CO. Call before your visit to confirm the address.
- What is John P. Martens's specialty?
- Medicare lists Psychiatry as the primary specialty.
- Does John P. Martens accept Medicare assignment?
- Yes. Medicare's clinician data says John P. Martens accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does John P. Martens offer telehealth?
- Medicare's clinician data says John P. Martens offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John P. Martens?
- (303) 425-0300, as listed in official Medicare / NPI Registry data.
- What is John P. Martens's NPI number?
- 1013921527. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where John P. Martens is enrolled with Medicare (CMS data updated 2026-10-02).
- 9485 W Colfax AveLakewood, CO 80215 (303) 425‑0300
Group practices
Medicare enrollment lists John P. Martens as a member of this group (CMS data updated 2026-10-02).
- Jefferson Center for Mental Health97 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Lakewood
Clinicians with the same Medicare primary specialty in Lakewood, CO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Illinois College Of Med (chi/peor/rock/chm-Urb) |
| Graduation year | 1988 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1013921527 |
| 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 2026-10-02, retrieved 2026-10-29
- 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