Christopher Trennepohl
NPI 1023696135 · Psychiatry Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Trennepohl is a Psychiatry Physician provider in Chicago, IL (NPI 1023696135).
Provider details
- NPI number
- 1023696135
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 036172127 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Trazodone Hcl | 30 |
| Mirtazapine | 26 |
| Duloxetine Hcl | 22 |
| Quetiapine Fumarate | 17 |
| Benztropine Mesylate | 15 |
| Buspirone Hcl | 15 |
| Lamotrigine | 14 |
| Cariprazine Hclbrand: Vraylar | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 1740 W Taylor StChicago, IL 60612-7232Phone: (866) 600-2273
Registry dates
- Enumerated
- 2021-03-30
- Last updated
- 2025-08-01
- Certified
- 2025-08-01
Frequently asked questions
- What is Christopher Trennepohl's NPI number?
- Christopher Trennepohl's National Provider Identifier (NPI) is 1023696135, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Trennepohl's specialty?
- Christopher Trennepohl is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Trennepohl located?
- Christopher Trennepohl's practice location on file with NPPES is 912 S Wood St, Chicago, IL 60612-4300.
- What is Christopher Trennepohl's phone number?
- The practice phone number listed in the NPPES registry for Christopher Trennepohl is (312) 996-2200.
- Does Christopher Trennepohl accept Medicare?
- Christopher Trennepohl is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Trennepohl's NPI active?
- Yes — Christopher Trennepohl's NPI (1023696135) is active in the NPPES registry as of the last update on 2025-08-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.