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DR. TIMOTHY ERIK GUNDLACH M.D.
NPI 1144200205
Anesthesiology in Milwaukee, WI

Active since January 17, 2006PECOS EnrolledAccepts Medicare Assignment
945 N 12TH ST, MILWAUKEE, WI 53233(414) 219-2000 Get Directions Write a Review

NPPES record last updated: September 15, 2025. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Sep 15, 2025, Nov 23, 2021, Sep 29, 2016 (3 updates tracked since 2016).

About Dr. Timothy Erik Gundlach M.d. NPPES

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

DR. TIMOTHY ERIK GUNDLACH M.D. (NPI 1144200205) is an individual anesthesiology provider in Milwaukee, Wisconsin, licensed in Wisconsin (33876-020) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Aurora St Lukes Medical Center, and is a graduate of University Of Wisconsin School Of Medicine (1985).

NPPES Registry Identity

NPI1144200205
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. TIMOTHY ERIK GUNDLACHCredential: M.D.
Location Address945 N 12TH STMilwaukee, WI 53233-1305
Mailing AddressPo Box 735044Chicago, IL 60673-5044 · (800) 326-2250
Phone(414) 219-2000
Sole ProprietorNo
Medical School CMSUniversity Of Wisconsin School Of MedicineGraduated 1985
Enumeration DateJanuary 17, 2006
Last NPPES UpdateSeptember 15, 20253 updates tracked since enumeration
NPPES CertifiedSeptember 15, 2025
✔ NPI 1144200205 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in WI · 33876-020
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.
945 N 12TH ST, Milwaukee, WI 53233
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Other Identifiers 1

Medicaid1144200205WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource (Common Ground Healthcare).Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Timothy Erik Gundlach M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4587655717
PECOS Enrollment IDI20160920000532
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
22 services22 patients
Anesthesia for other procedure on large bowel using an endoscope 00811
Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.
12 services12 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Aurora St Lukes Medical Center

Acute Care Hospitals · Milwaukee, WI
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520138
Location2900 W Oklahoma AveMilwaukee, WI 53215 · Milwaukee County
Emergency services Birthing friendly

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.

RICHARD COMPTON KURTZ II MD
Family Medicine
945 N 12TH ST
MILWAUKEE, WI 53233
Milwaukee County (414) 219-0000
MS. ANN M YOCKEY APNP
Nurse Practitioner
945 N 12TH ST
MILWAUKEE, WI 53233
Milwaukee County (414) 219-5800
DR. ALINA M WINANS MD
Emergency Medicine
945 N 12TH ST
MILWAUKEE, WI 53233
Milwaukee County (414) 219-2000
MS. MORANDA MARIA MEDINA-LOPEZ RN
Registered Nurse
945 N 12TH ST
MILWAUKEE, WI 53233
Milwaukee County (414) 219-2000
XENAYSHMA ZHAYLEENE GNAS-PACHECO
Registered Nurse (Registered Nurse First Assistant)
945 N 12TH ST
MILWAUKEE, WI 53233
Milwaukee County (414) 000-0000
PROGRESSIVE COMMUNITY HEALTH CENTERS, INC.
Clinic/Center (Federally Qualified Health Center (FQHC))
945 N 12TH ST, URGENT CARE
MILWAUKEE, WI 53233
Milwaukee County (414) 935-8000
JOSEPH SHAOUL
Anesthesiologist Assistant
945 N 12TH ST
MILWAUKEE, WI 53233
Milwaukee County (414) 219-2000
MICHELE DUDA
Nurse Practitioner
945 N 12TH ST
MILWAUKEE, WI 53233
Milwaukee County (414) 219-7021

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Timothy Gundlach's NPI number?

The NPI number for Timothy Gundlach is 1144200205. It was assigned to this individual provider in the NPPES registry on January 17, 2006.

Where is Timothy Gundlach located?

Timothy Gundlach practices at 945 N 12th St, Milwaukee, WI 53233. The listed phone number is (414) 219-2000.

What is Timothy Gundlach's specialty?

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

Is Timothy Gundlach enrolled in Medicare?

Yes. Timothy Gundlach is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Timothy Gundlach accept?

Health plans from CareSource (Common Ground Healthcare) list Timothy Gundlach as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Timothy Gundlach affiliated with any hospitals?

According to CMS data, Timothy Gundlach is affiliated with Aurora St Lukes Medical Center.

When was this NPI record last updated?

The NPPES record for Timothy Gundlach was last updated on September 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.