WILLIAM D TIMM MD
NPI 1902856016
Internal Medicine - Infectious Disease in Brookfield, WI

Q: What is William Timm's NPI number?

The NPI number for William Timm is 1902856016. It was assigned to this individual provider in the NPPES registry on May 11, 2006.

Q: What is William Timm's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Q: When was this NPI record last updated?

The NPPES record for William Timm was last updated on January 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.

Active since May 11, 2006PECOS EnrolledAccepts Medicare Assignment

150 S SUNNY SLOPE RD STE 136, BROOKFIELD, WI 53005(262) 786-4550(262) 786-4552 Get Directions Write a Review

NPPES record last updated: January 16, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About William D Timm Md NPPES

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

WILLIAM D TIMM MD (NPI 1902856016) is an individual infectious disease provider in Brookfield, Wisconsin, licensed in Wisconsin (33843-020) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Thedacare Regional Med Ctr - Neenah, and maintains a secondary practice location in Appleton.

NPPES Registry Identity

NPI1902856016

Entity TypeIndividualMale

Primary Taxonomy207RI0200X

Provider Legal NameWILLIAM D TIMMCredential: MD

Location Address150 S SUNNY SLOPE RD STE 136Brookfield, WI 53005-4858

Mailing Address150 S Sunny Slope Rd, Suite 136Brookfield, WI 53005-6461 · (262) 786-4550 · Fax (262) 786-4552

Phone(262) 786-4550

Fax(262) 786-4552

Sole ProprietorNo

Medical School CMSMedical College Of WisconsinGraduated 1991

Enumeration DateMay 11, 2006

Last NPPES UpdateJanuary 16, 2025

NPPES CertifiedJanuary 16, 2025

✔ NPI 1902856016 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RI0200X

License✔ Licensed in WI · 33843-020

Definition

An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

150 S SUNNY SLOPE RD STE 136, Brookfield, WI 53005

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Secondary Practice Location 1

Location 11818 N Meade StAppleton, WI 54911-3454 · Phone (920) 831-1841 · Fax (920) 831-1834

Other Identifiers 2

Other110132995WI · Railroad Medicare

Medicaid31980100WI

Accepted Insurance

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

William D Timm Md 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 ID7911809991

PECOS Enrollment IDI20040122000548

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 10

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.

Injection, dalbavancin, 5 mg J0875

Dalbavancin injection is an antibiotic used to treat severe skin infections caused by certain bacteria. The 5mg dosage is administered by healthcare professionals into a vein, usually once a week. It works by stopping the growth of bacteria.

6,280 services11 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

151 services84 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 96365

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

109 services17 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

86 services81 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

67 services25 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

59 services28 patients

Hospital Affiliations CMS Care Compare 5

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

Thedacare Regional Med Ctr - Neenah

Acute Care Hospitals · Neenah, WI

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520045

Location130 2nd StNeenah, WI 54956 · Winnebago County

Emergency services Birthing friendly

Ascension Columbia St Mary's Hospital Milwaukee

Acute Care Hospitals · Milwaukee, WI

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number520051

Location2323 N Lake DrMilwaukee, WI 53211 · Milwaukee County

Emergency services Birthing friendly

Ascension SE Wisconsin Hospital

Acute Care Hospitals · Milwaukee, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number520136

Location5000 W Chambers StMilwaukee, WI 53210 · Milwaukee County

Emergency services Birthing friendly

Thedacare Regional Medical Center - Appleton Inc

Acute Care Hospitals · Appleton, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520160

Location1818 N Meade StAppleton, WI 54911 · Outagamie County

Emergency services Birthing friendly

Aurora Medical Center - Summit

Acute Care Hospitals · Summit, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520206

Location36500 Aurora DriveSummit, WI 53066 · Waukesha County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53005 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$123.69 typical visit price

range $53.90 – $163.24

Typical copayment $30.92 (range $13.47 – $40.81)

Most-billed visit code 99204

Established Patient

$95.41 typical visit price

range $17.40 – $133.76

Typical copayment $23.85 (range $4.35 – $33.44)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg J1569

Treatment-Injections and Infusions (nononcologic) · category RI008N

1 supplier12 claims600 services$35.71 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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Other Providers at the Same Location NPPES 8

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

JENNIFER HONG DO

Internal Medicine (Infectious Disease)