Christopher Trennepohl
Psychiatry Physician · Chicago, IL
Christopher Trennepohl is a psychiatry physician with a practice address in Chicago, Illinois, and NPI 1023696135, issued on Mar 30, 2021. Check the license (Illinois 036172127, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Christopher Trennepohl
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 036172127 IL
Self-reported in NPPES; status is on the state search - Practice location
- 912 S Wood St, Chicago, IL 60612
- Phone
- (312) 996-2200
- Enumerated
- Mar 30, 2021
- Record last updated
- Aug 1, 2025
- Medicare enrollment
- Enrolled (PECOS I20250911003567); accepts Medicare assignment
- Medical or professional school
- University Of North Carolina At Chapel Hill School Of Medicine, 2021
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,147 in Illinois → Look up another NPI →
Also registered at 912 S Wood St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tatiana Abou Mrad, MD, MSStudent in an Organized Health Care Education/Training Program1477356202
- Olusola Ajilore, M.D.Psychiatry Physician1740213347
- Johansen AminPsychiatry Physician1629718077
- Jill AndersonNurse Practitioner1841399706
- Sarah AndersonStudent in an Organized Health Care Education/Training Program1114360328
- Ellen Astrachan-FletcherPsychiatric/Mental Health Nurse Practitioner1962414318
Verify Christopher Trennepohl in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036172127Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average psychiatry physician in 2024
249 Medicare Part D claims for 20 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Trazodone Hcl30 claims
- Mirtazapine26 claims
- Duloxetine Hcl22 claims
- Quetiapine Fumarate17 claims
- Benztropine Mesylate15 claims
- Buspirone Hcl15 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- The Board OF Trustees OF The University OF IllinoisChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher Trennepohl among 2,147 psychiatry physician records in Illinois
Christopher Trennepohl is one of 2,147 psychiatry physician records with a practice address in Illinois. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 84% of them.
- NPI issued2021 · 84% of these records are older, 12% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 41% of these records are
- Graduated2021 · median 2004 among the 877 with a school on file
- Record last updated2025 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
841 psychiatry physician records list a practice address in Chicago
They are 841 of the 63,379 NPPES records with a practice address in Chicago, and 2,147 psychiatry physician records in Illinois.
All 2,147 in Illinois → Every provider in Chicago → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Olusola Ajilore, M.D.Chicago, IL 606121740213347
- Sybil Circle, MDChicago, IL 606121861509879
- Rodney EigerChicago, IL 606121982717120
- Peter Fore, M.D.Chicago, IL 606121023125838
- Cheryl Gaines, M.D., M.A.Chicago, IL 606121346358009
- Yakov GertsbergChicago, IL 606121215940598
- Nafisa GhadialiChicago, IL 606121215940416
- Kalman KaplanChicago, IL 606121902819279
Common questions
What is Christopher Trennepohl's NPI number?
Christopher Trennepohl's National Provider Identifier (NPI) is 1023696135, issued on Mar 30, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Trennepohl located?
The NPPES record lists a practice address at 912 S Wood St, Chicago, IL, 60612. Phone: (312) 996-2200. Providers update this record themselves, so call before visiting.
How can I verify Christopher Trennepohl's license?
NPPES lists Illinois license number 036172127, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Christopher Trennepohl prescribe under Medicare Part D?
In 2024, Christopher Trennepohl had 249 Medicare Part D claims for 20 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.