Justin David Parker, MD
Family Medicine Physician · Decatur, IL
Justin David Parker, MD is a family medicine physician with a practice address in Decatur, Illinois, and NPI 1730490111, issued on Jun 30, 2010. Check the license (Illinois 125057767, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Justin David Parker
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 125057767 IL
01096764A IN
Self-reported in NPPES; status is on the state search - Practice location
- 250 W Kenwood Ave, Decatur, IL 62526
- Phone
- (217) 872-3800
- Enumerated
- Jun 30, 2010
- Record last updated
- Jul 23, 2025
- Fax
- (217) 872-0849
- Medicaid ID
- 036132477 IL
- Medicare enrollment
- Enrolled (PECOS I20250728003363); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 250 W Kenwood Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Bradley, M.D.Family Medicine Physician1508843236
- Samitha Chandraratne, M.D.Family Medicine Physician1770924672
- Jennifer Choatie, FNP-BCFamily Nurse Practitioner1720090772
- Harvinder Dhillon, MDFamily Medicine Physician1184856932
- John Dimondo, M.D.Family Medicine Physician1518050095
- Mira Dvivedi, M.D.Family Medicine Physician1710327580
Verify Justin David Parker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 125057767Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% fewer Medicare Part D claims than the average family medicine physician in 2024
2,867 Medicare Part D claims for 208 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 138 claims were for opioids.
Most prescribed
- Atorvastatin Calcium142 claims
- Amlodipine Besylate140 claims
- Lisinopril111 claims
- Levothyroxine Sodium100 claims
- Metformin Hcl86 claims
- Gabapentin80 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $19.65
1 payment: food and beverage; the largest payer was Dynavax Technologies Corporation. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 3 group practices
- Arnett Clinic LLCLafayette, IN
- Board OF Trustees OF Southern Illinois UniversitySpringfield, IL
- IU Health Medical Group LLCIndianapolis, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Justin David Parker among 6,215 family medicine physician records in Illinois
Justin David Parker, 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 2010, is newer than 57% of them.
- NPI issued2010 · 57% of these records are older, 41% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2010 · median 2006 among the 3,714 with a school on file
- Record last updated2025 · 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).
85 family medicine physician records list a practice address in Decatur
They are 85 of the 1,513 NPPES records with a practice address in Decatur, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Decatur → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Sachin Batra, MDDecatur, IL 625261356510804
- John Bradley, M.D.Decatur, IL 625261508843236
- Thomas Caldwell, M.D.Decatur, IL 625261144258492
- John Dimondo, M.D.Decatur, IL 625261518050095
- Prasanna Gowdar, MDDecatur, IL 625261316023559
- Dennis Heim, M.D.Decatur, IL 625261891891636
- David Kiel, M.D.Decatur, IL 625261447358726
- Susan Klein, M.D.Decatur, IL 625261558348268
Common questions
What is Justin David Parker, MD's NPI number?
Justin David Parker, MD's National Provider Identifier (NPI) is 1730490111, issued on Jun 30, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Justin David Parker, MD located?
The NPPES record lists a practice address at 250 W Kenwood Ave, Decatur, IL, 62526. Phone: (217) 872-3800. Providers update this record themselves, so call before visiting.
How can I verify Justin David Parker, MD's license?
NPPES lists Illinois license number 125057767, as entered by the provider. 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.
How much does Justin David Parker, MD prescribe under Medicare Part D?
In 2024, Justin David Parker, MD had 2,867 Medicare Part D claims for 208 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.