WILLIAM T WITMER MD
NPI 1033130653
Internal Medicine - Interventional Cardiology in Green Bay, WI

Q: What is William Witmer's NPI number?

The NPI number for William Witmer is 1033130653. It was assigned to this individual provider in the NPPES registry on July 21, 2006.

Q: What is William Witmer's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Q: When was this NPI record last updated?

The NPPES record for William Witmer was last updated on September 30, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years 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 July 21, 2006PECOS EnrolledAccepts Medicare Assignment

2845 GREENBRIER RD STE 310, GREEN BAY, WI 54311(920) 288-8300(920) 288-8305 Get Directions Write a Review

NPPES record last updated: September 30, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About William T Witmer Md NPPES

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

WILLIAM T WITMER MD (NPI 1033130653) is an individual interventional cardiology provider in Green Bay, Wisconsin, licensed in Wisconsin (30867) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Aurora Medical Ctr Manitowoc County, and is a graduate of Vanderbilt University School Of Medicine (1988).

NPPES Registry Identity

NPI1033130653

Entity TypeIndividualMale

Primary Taxonomy207RI0011X

Provider Legal NameWILLIAM T WITMERCredential: MD

Location Address2845 GREENBRIER RD STE 310Green Bay, WI 54311-6519

Mailing Address2845 Greenbrier Rd Ste 310, Po Box 8900Green Bay, WI 54308-8900 · (920) 288-8300 · Fax (920) 288-8305

Phone(920) 288-8300

Fax(920) 288-8305

Sole ProprietorNo

Medical School CMSVanderbilt University School Of MedicineGraduated 1988

Enumeration DateJuly 21, 2006

Last NPPES UpdateSeptember 30, 2008

✔ NPI 1033130653 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Interventional CardiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RI0011X

License✔ Licensed in WI · 30867

Definition

An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.

2845 GREENBRIER RD STE 310, Green Bay, WI 54311

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Other Identifiers 4

Medicare UPING05269

Medicare ID-Type Unspecified022407650WI

Medicare PIN003571460WI

Medicaid34603000WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare) and more.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 T Witmer 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 ID4183672512

PECOS Enrollment IDI20050112000154

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 14

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.

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

478 services473 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

464 services339 patients

Ultrasound of heart, follow-up 93308

A follow-up ultrasound of the heart, also known as an echocardiogram, is a non-invasive test that uses sound waves to create images of your heart. It helps doctors monitor your heart's function and structures after initial assessment or treatment.

129 services115 patients

Ultrasound of heart with color-depicted blood flow, rate and valve function 93325

An ultrasound of the heart, also known as an echocardiogram, uses sound waves to create pictures of your heart. It shows the structure, movement, and blood flow within your heart. This helps assess the heart's health and function, including the valves and rate.

86 services83 patients

Ultrasound of heart blood flow, valves and chambers, follow-up 93321

This procedure, an echocardiogram, uses sound waves to create images of your heart. It aids in assessing your heart's blood flow, chambers, and valves. It's a follow-up procedure, ensuring that your heart is functioning properly post-treatment.

84 services81 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.

77 services75 patients

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

75 services73 patients

Nuclear medicine studies of heart muscle at rest and with stress and spect 78452

Nuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.

53 services53 patients

Heart muscle strain imaging 93356

Heart muscle strain imaging is a non-invasive test that uses sound waves to create pictures of your heart. It helps doctors evaluate how well your heart muscle is working and detect any damage or disease. This can aid in diagnosing heart conditions and guiding treatment plans.

40 services38 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

26 services26 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.

26 services26 patients

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

22 services22 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

20 services20 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

17 services16 patients

Hospital Affiliations CMS Care Compare 4

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

Aurora Medical Ctr Manitowoc County

Acute Care Hospitals · Two Rivers, WI

OwnershipVoluntary non-profit - Private

CMS Certification Number520034

Location5000 Memorial DriveTwo Rivers, WI 54241 · Manitowoc County

Emergency services Birthing friendly

Bay Area Medical Center

Acute Care Hospitals · Marinette, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520113

Location3003 University DrMarinette, WI 54143 · Marinette County

Emergency services Birthing friendly

Aurora Baycare Medical Ctr

Acute Care Hospitals · Green Bay, WI

5/5 CMS rating

OwnershipProprietary

CMS Certification Number520193

Location2845 Greenbrier RdGreen Bay, WI 54311 · Brown County

Emergency services Birthing friendly

Door County Medical Center

Critical Access Hospitals · Sturgeon Bay, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number521358

Location323 South 18th AvenueSturgeon Bay, WI 54235 · Door County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54311 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.

Other Providers at the Same Location NPPES 5

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

SAMANTHA MCMAHON FNP-BC

Nurse Practitioner