Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Dennis J. Park, DO

Individual provider Internal Medicine Physician · NPI 1639220445

Dr. Dennis J. Park, DO practises Internal Medicine in Oakbrook Terrace, Illinois. Qualified in 2006, 20 years ago. Practices with Vpa PC, a 182-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois and Nebraska.

Years since qualifying
20
Licensed in
IL, NE
In the registry since
2007
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

2 Transam Plaza Dr Ste 410
Oakbrook Terrace, IL 60181-4290
Phone: (866) 259-1631
Fax: (855) 618-2629
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036.133095 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 602 (NE)

Record details

NPI number1639220445
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJanuary 16, 2007
Last updated in NPPESMarch 17, 2021
Certification dateMarch 17, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2006 (20 years in practice)
Group practice Vpa Pc — 182 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients315
Services billed 1,201 a service is one billed item, such as a visit, a test or a procedure
Average patient age82

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Vpa PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 182 clinicians in the practice; 12 are shown here.

Other providers in Oakbrook Terrace