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WILLIAM E RIZZO MD
NPI 1114931698
Internal Medicine in Clarkston, MI

Active since July 28, 2006PECOS Enrolled
5701 BOW POINTE DR, SUITE 120, CLARKSTON, MI 48346(248) 625-2273(248) 625-6336 Get Directions Write a Review

NPPES record last updated: August 13, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About William E Rizzo Md NPPES

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

WILLIAM E RIZZO MD (NPI 1114931698) is an individual internal medicine provider in Clarkston, Michigan, licensed in Michigan (4301054582) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1114931698
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameWILLIAM E RIZZOCredential: MD
Location Address5701 BOW POINTE DR, SUITE 120Clarkston, MI 48346-3198
Mailing Address5701 Bow Pointe Dr, Suite 120Clarkston, MI 48346-3198 · (248) 625-2273 · Fax (248) 625-6336
Phone(248) 625-2273
Fax(248) 625-6336
Sole ProprietorNo
Enumeration DateJuly 28, 2006
Last NPPES UpdateAugust 13, 2015
✔ NPI 1114931698 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MI · 4301054582
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 ListedEmergency Medicine · Emergency Medical ServicesTaxonomy 207PE0004X · License WR054582 (MI)
Also ListedHospitalistTaxonomy 208M00000X · License 4301054582 (MI)
5701 BOW POINTE DR, Clarkston, MI 48346
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Other Identifiers 2

Medicare UPINF37580
Medicaid104467654MI

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William E Rizzo Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignments

2

Medicare enrollment records show William Rizzo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Springfield Urgent Care, P.L.L.C.
5.7 mi
Urgent Care
9749 DIXIE HWY STE B
Clarkston, MI 48348
  • Reassigned Medicare billing, Michigan enrollment
  • Medicare enrollment name: Springfield Urgent Care PLLC
  • 31 clinicians in this Medicare group
NPI 1144747460 (248) 942-5888
Degara App, PLLC
60 mi
Emergency Medicine
401 W GREENLAWN AVE
Lansing, MI 48910
  • Reassigned Medicare billing, Michigan enrollment
  • 295 clinicians in this Medicare group
NPI 1265976971 (517) 975-6000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48346 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
$134.28 typical visit price
range $58.04 – $177.36
Typical copayment $33.57 (range $14.51 – $44.34)
Most-billed visit code 99204
Established Patient
$102.35 typical visit price
range $18.32 – $143.49
Typical copayment $25.58 (range $4.58 – $35.87)
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 20

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

GARY S KWARTOWITZ D.O.
Otolaryngology
5701 BOW POINTE DR, SUITE 200
CLARKSTON, MI 48346
Oakland County (248) 620-3100
CLARKSTON DERMATOLOGY & VEIN CENTER PLLC
Dermatology
5701 BOW POINTE DR, SUITE 215
CLARKSTON, MI 48346
Oakland County (248) 620-3376
NORTH OAKLAND EAR NOSE &THROAT CENTERS PC
Otolaryngology
5701 BOW POINTE DR, SUITE 200
CLARKSTON, MI 48346
Oakland County (248) 620-3100
DR. TIMOTHY R ONEILL DO
Family Medicine
5701 BOW POINTE DR, SUITE 100
CLARKSTON, MI 48346
Oakland County (248) 625-2621
MRS. SUSAN LOUISE CLARK NP
Nurse Practitioner (Psychiatric/Mental Health)
5701 BOW POINTE DR, SUITE 225
CLARKSTON, MI 48346
Oakland County (248) 384-8300
DR. SCOTT SIMECEK II D.O.
Internal Medicine (Pulmonary Disease)
5701 BOW POINTE DR, STE 365
CLARKSTON, MI 48346
Oakland County (248) 922-9283
DR. NAVEEN GUNDA REDDY M.D.
Internal Medicine (Gastroenterology)
5701 BOW POINTE DR, SUITE 370
CLARKSTON, MI 48346
Oakland County (248) 625-4055
VASCULAR SURGERY ASSOC, P.C.
Surgery (Vascular Surgery)
5701 BOW POINTE DR, SUITE 2010
CLARKSTON, MI 48346
Oakland County (248) 620-3900

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 William Rizzo's NPI number?

The NPI number for William Rizzo is 1114931698. It was assigned to this individual provider in the NPPES registry on July 28, 2006.

Where is William Rizzo located?

William Rizzo practices at 5701 Bow Pointe Dr Suite 120, Clarkston, MI 48346. The listed phone number is (248) 625-2273.

What is William Rizzo's specialty?

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

Is William Rizzo enrolled in Medicare?

Yes. William Rizzo is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for William Rizzo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Rizzo reassigns Medicare benefits to 2 organizations: Springfield Urgent Care, P.L.L.C. (Clarkston, MI) and Degara App, PLLC (Lansing, MI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Rizzo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for William Rizzo was last updated on August 13, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.