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ROBERT E WILLIAMS MD
NPI 1619909868
Internal Medicine in New Berlin, WI

Active since July 07, 2006PECOS EnrolledAccepts Medicare Assignment
14555 W NATIONAL AVE, NEW BERLIN, WI 53151(262) 827-3636 Get Directions Write a Review

NPPES record last updated: November 23, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 23, 2021, Aug 16, 2017 (2 updates tracked since 2017).

About Robert E Williams Md NPPES

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

ROBERT E WILLIAMS MD (NPI 1619909868) is an individual internal medicine provider in New Berlin, Wisconsin, licensed in Wisconsin (43644) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with West Allis Memorial Hospital, and is a graduate of Northeastern Ohio University College Of Medicine (1997).

NPPES Registry Identity

NPI1619909868
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameROBERT E WILLIAMSCredential: MD
Location Address14555 W NATIONAL AVENew Berlin, WI 53151-4494
Mailing Address3003 W Good Hope RdMilwaukee, WI 53209 · (414) 352-3100
Phone(262) 827-3636
Sole ProprietorNo
Medical School CMSNortheastern Ohio University College Of MedicineGraduated 1997
Enumeration DateJuly 7, 2006
Last NPPES UpdateNovember 23, 20212 updates tracked since enumeration
NPPES CertifiedNovember 23, 2021
✔ NPI 1619909868 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in WI · 43644
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedPediatricsTaxonomy 208000000X · License 43644 (WI)
14555 W NATIONAL AVE, New Berlin, WI 53151
Open in Google Maps ↗

Other Identifiers 2

Medicaid34124200WI
OtherP00451352WI · Rr Medicare

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

Robert E Williams 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 ID7810911096
PECOS Enrollment IDI20060116000431
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 6

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.

Anticoagulant management of patient taking warfarin 93793
Anticoagulant management with warfarin involves monitoring and adjusting your medication to prevent blood clots while minimizing the risk of bleeding. Regular blood tests measure your response to warfarin, helping adjust your dose if necessary. It's crucial to maintain a consistent diet and promptly report any changes in your health.
169 services50 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.
155 services68 patients
Blood test, clotting time 85610
A clotting time blood test helps determine how quickly your blood forms clots, a process crucial to stop bleeding. During the test, a small blood sample is taken from your arm. The sample is then analyzed in a lab to see how long it takes for a clot to form.
144 services41 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
52 services52 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
20 services20 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
20 services20 patients

Hospital Affiliations CMS Care Compare

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

West Allis Memorial Hospital

Acute Care Hospitals · West Allis, WI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520139
Location8901 W Lincoln AveWest Allis, WI 53227 · Milwaukee County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53151 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 2

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
11 suppliers27 claims76 services$5.33 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
1 supplier11 claims11 services$185.12 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

MS. ANNE E WALZ CALVEY PA-C
Physician Assistant
14555 W NATIONAL AVE, SUITE 165
NEW BERLIN, WI 53151
Waukesha County (262) 827-3636
ORITSETIMEYIN E OTUBU-SCIPIO M.D.
Family Medicine
14555 W NATIONAL AVE
NEW BERLIN, WI 53151
Waukesha County (844) 284-0381
RUTH PENA PA-C
Physician Assistant (Medical)
14555 W NATIONAL AVE
NEW BERLIN, WI 53151
Waukesha County (262) 693-4312
MICHELLE L MARTIN APNP
Nurse Practitioner
14555 W NATIONAL AVE
NEW BERLIN, WI 53151
Waukesha County (262) 827-2955
BRIAN P. MCSORLEY M.D.
Family Medicine
14555 W NATIONAL AVE
NEW BERLIN, WI 53151
Waukesha County (262) 827-2955
MARA M. SPENCER M.P.T.
Physical Therapist
14555 W NATIONAL AVE, STE. 135
NEW BERLIN, WI 53151
Waukesha County (262) 827-3180
DR. CHRISTINE MIERHA YANG R.PH
Pharmacist
14555 W NATIONAL AVE
NEW BERLIN, WI 53151
Waukesha County (262) 827-9062
KYLA PHU APN
Nurse Practitioner
14555 W NATIONAL AVE
NEW BERLIN, WI 53151
Waukesha County (844) 284-0381

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 Robert Williams's NPI number?

The NPI number for Robert Williams is 1619909868. It was assigned to this individual provider in the NPPES registry on July 7, 2006.

Where is Robert Williams located?

Robert Williams practices at 14555 W National Ave, New Berlin, WI 53151. The listed phone number is (262) 827-3636.

What is Robert Williams's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Robert Williams enrolled in Medicare?

Yes. Robert Williams 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 Robert Williams accept?

Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare), Quartz and UnitedHealthcare list Robert Williams 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 Robert Williams affiliated with any hospitals?

According to CMS data, Robert Williams is affiliated with West Allis Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Robert Williams was last updated on November 23, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.