Maria F. Vlahos, MD
Family Medicine Physician · McHenry, IL
Maria F. Vlahos, MD is a family medicine physician with a practice address in McHenry, Illinois, and NPI 1316094030, issued on Jan 4, 2007. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Maria F. Vlahos
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- Practice location
- 3922 Mercy Dr, McHenry, IL 60050
- Phone
- (815) 344-4499
- Enumerated
- Jan 4, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 036093874 1 IL
- Medicare enrollment
- Enrolled (PECOS I20050512000342); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1990
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 3922 Mercy Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Rick Chitwood, DOPediatrics Physician1609977305
- Paul Dehaan, MDOrthopaedic Hand Surgery Physician1386727790
- Joseph Fojtik, MDInternal Medicine Physician1801971171
Verify Maria F. Vlahos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- American Current Care OF Illinois PCFranklin Park, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maria F. Vlahos among 6,215 family medicine physician records in Illinois
Maria F. Vlahos, MD is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 50% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1990 · median 2006 among the 3,714 with a school on file
- Record last updated2007 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 family medicine physician records list a practice address in McHenry
They are 12 of the 1,852 NPPES records with a practice address in McHenry, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in McHenry → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- John Albanese, M.D.McHenry, IL 600501699860635
- Boguslaw Bonczak, M.D.McHenry, IL 600501881893303
- Andrea Clem, DOMcHenry, IL 600501770541369
- Syed Hassan, MDMcHenry, IL 600501063637544
- Hiejin Kang, MDMcHenry, IL 600501710052980
- Ejaz Khan, MDMcHenry, IL 600501518902527
- Abby Von Heimburg, MDMcHenry, IL 600501801895545
- Ann Dilla, DOMcHenry, IL 600511568490977
Common questions
What is Maria F. Vlahos, MD's NPI number?
Maria F. Vlahos, MD's National Provider Identifier (NPI) is 1316094030, issued on Jan 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Maria F. Vlahos, MD located?
The NPPES record lists a practice address at 3922 Mercy Dr, McHenry, IL, 60050. Phone: (815) 344-4499. Providers update this record themselves, so call before visiting.
How can I verify Maria F. Vlahos, MD's license?
Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.