John Tharnstrom, PA - Medicare Physician Assistant in Naperville, IL

John Tharnstrom, PA is a medicare enrolled "Emergency Medicine" physician in Naperville, Illinois. He graduated from medical school in 2003 and has 21 years of diverse experience with area of expertise as Physician Assistant. He is a member of the group practice Dupage Medical Group Ltd and his current practice location is 808 Rickert Dr Ste 103, Naperville, Illinois. You can reach out to his office (for appointments etc.) via phone at (331) 551-5854.

John Tharnstrom is licensed to practice in Illinois (license number 085-002044) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1467541227.

Contact Information

John Tharnstrom, PA
808 Rickert Dr Ste 103,
Naperville, IL 60540-0908
(331) 551-5854
(630) 348-3098

Map and Direction




Physician's Profile

Full NameJohn Tharnstrom
GenderMale
SpecialityPhysician Assistant
Experience21 Years
Location808 Rickert Dr Ste 103, Naperville, Illinois
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • John Tharnstrom graduated from medical school in 2003
  NPI Data:
  • NPI Number: 1467541227
  • Provider Enumeration Date: 10/12/2006
  • Last Update Date: 07/28/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 2668461260
  • Enrollment ID: I20040510000316

Medical Identifiers

Medical identifiers for John Tharnstrom such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1467541227NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 085-002044 (Illinois)Primary
363A00000XPhysician Assistant PA09915 (Texas)Secondary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Dupage Medical Group Ltd54966679411186

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. John Tharnstrom is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
John Tharnstrom, PA
Po Box 713260,
Chicago, IL 60677-1260

Ph: (630) 946-9200
John Tharnstrom, PA
808 Rickert Dr Ste 103,
Naperville, IL 60540-0908

Ph: (331) 551-5854

Reviews and Comments


Emergency Medicine Doctors in Naperville, IL

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Dr. Scott L Sims, M.D.
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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.