Individual provider

Robert Vacek, M.D.

Hospitalist Physician Family Medicine Physician Geriatric Medicine (Internal Medicine) Physician Medicare enrolled

Robert Vacek, M.D. is a Hospitalist Physician in Wheaton, IL, registered under NPI 1164480505. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 26W171 ROOSEVELT RD STE 101, Wheaton, IL 60187. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

26W171 ROOSEVELT RD STE 101, Wheaton, IL 60187 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
036061168 IL Hospitalist Physician primary
036061168 IL Family Medicine Physician
036061168 IL Geriatric Medicine (Internal Medicine)…

This provider holds licence 036061168 issued in IL. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Hospitalist
PAC ID
3173514585
Enrollment ID
I20191107000670

Medicare enrolment is recorded as approved under the provider type Practitioner - Hospitalist. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

What Hospitalist covers

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients. NUCC Health Care Provider Taxonomy, code 208M00000X
Allopathic & Osteopathic Physicians Hospitalist

All registered taxonomy codes

This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
208M00000X Hospitalist Physician 036061168 IL primary
207Q00000X Family Medicine Physician 036061168 IL
207RG0300X Geriatric Medicine (Internal Medicine) Physician Geriatric Medicine 036061168 IL

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1164480505 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateMay 3, 2006
Last updatedJul 19, 2021
StatusActive
Sole proprietorNo
CredentialM.D.
Practice address 26W171 ROOSEVELT RD STE 101
Wheaton, IL 60187
(630) 933-4700
Fax (630) 933-4427
Other identifiers 036061168 · Medicaid (IL)
The last update on file is Jul 19, 2021. Providers are only required to update NPPES when their information changes, so an older date does not necessarily mean the details are wrong — but it is worth a quick call before you travel.

Number check

1164480505 passes the NPI check digit test The final digit 5 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 1 6 4 4 8 0 5 0
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 1 3 4 8 8 0 5 0

Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1164480505?
NPI 1164480505 is the National Provider Identifier assigned to Robert Vacek, M.D. in Wheaton, IL. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Hospitalist Physician cover?
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for…
How do I contact Robert Vacek, M.D.?
The phone number on file with NPPES is (630) 933-4700, last updated Jul 19, 2021. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Robert Vacek, M.D. accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1164480505 a valid number?
Yes. 1164480505 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.