Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. HARTMUT C. RENGER M.D.
NPI 1689662207
Anesthesiology in Fort Collins, CO

Q: What is Hartmut Renger's NPI number?

The NPI number for Hartmut Renger is 1689662207. It was assigned to this individual provider in the NPPES registry on October 7, 2005.

Q: What is Hartmut Renger's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Q: When was this NPI record last updated?

The NPPES record for Hartmut Renger was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 41 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since October 07, 2005

1236 E ELIZABETH ST, SUITE 3, FORT COLLINS, CO 80524(970) 224-2985(970) 472-9381 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. Hartmut C. Renger M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. HARTMUT C. RENGER M.D. (NPI 1689662207) is an individual anesthesiology provider in Fort Collins, Colorado, licensed in Colorado (30776) and active in the NPI registry since October 2005.

NPPES Registry Identity

NPI1689662207

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameDR. HARTMUT C. RENGERCredential: M.D.

Location Address1236 E ELIZABETH ST, SUITE 3Fort Collins, CO 80524-4000

Mailing Address1236 E Elizabeth St, Suite 3Fort Collins, CO 80524-4000 · (970) 224-2985 · Fax (970) 472-9381

Phone(970) 224-2985

Fax(970) 472-9381

Sole ProprietorNo

Enumeration DateOctober 7, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1689662207 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in CO · 30776

Definition

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

1236 E ELIZABETH ST, Fort Collins, CO 80524

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Other Identifiers 1

Medicaid91782466CO

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MR. STEVEN K. PETERSON CRNA

Nurse Anesthetist, Certified Registered