Matthew John Snowdon, D.O.
Internal Medicine Physician · Highland Park, IL
Matthew John Snowdon, D.O. is an internal medicine physician with a practice address in Highland Park, Illinois, and NPI 1821450420, issued on Mar 22, 2016. Check the license (Illinois 036150001, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Matthew John Snowdon
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036150001 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1777 Green Bay RD, Highland Park, IL 60035
- Phone
- (847) 433-3460
- Enumerated
- Mar 22, 2016
- Record last updated
- Sep 26, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (847) 433-4062
- Medicare enrollment
- Enrolled (PECOS I20190725000646); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 1777 Green Bay RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Loren Adelman, DPMPodiatrist1508844770
- Robert Block, MDInternal Medicine Physician1316915192
- Kenneth Breger, MDInternal Medicine Physician1467429563
- Gary Kaufman, MDInternal Medicine Physician1316915101
- Arielle Levitan, MDInternal Medicine Physician1902864499
- Gali Oren-Amit, M.D.Internal Medicine Physician1265606040
Verify Matthew John Snowdon 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 036150001Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% more Medicare Part D claims than the average internal medicine physician in 2024
4,291 Medicare Part D claims for 459 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 77 claims were for opioids.
Most prescribed
- Atorvastatin Calcium363 claims
- Amlodipine Besylate220 claims
- Levothyroxine Sodium202 claims
- Rosuvastatin Calcium159 claims
- Lisinopril150 claims
- Losartan Potassium121 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.
The MIPS final score for 2023 (Medicare payment program): 93.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Endeavor Health Medical GroupHighland Park, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew John Snowdon among 7,238 internal medicine physician records in Illinois
Matthew John Snowdon, D.O. is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 63% of them.
- NPI issued2016 · 63% of these records are older, 36% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2016 · median 2003 among the 3,580 with a school on file
- Record last updated2019 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
38 internal medicine physician records list a practice address in Highland Park
They are 38 of the 882 NPPES records with a practice address in Highland Park, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Highland Park → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Robert Block, MDHighland Park, IL 600351316915192
- Kenneth Breger, MDHighland Park, IL 600351467429563
- Vuong Dang-Duc, MDHighland Park, IL 600351588630719
- Ronald Feingold, MDHighland Park, IL 600351114995966
- Lee Freedman, MDHighland Park, IL 600351497708556
- Robert Freilich, MDHighland Park, IL 600351528066347
- Barry Goldberg, MDHighland Park, IL 600351760450548
- Heberto Hernandez, MDHighland Park, IL 600351366419194
Common questions
What is Matthew John Snowdon, D.O.'s NPI number?
Matthew John Snowdon, D.O.'s National Provider Identifier (NPI) is 1821450420, issued on Mar 22, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Matthew John Snowdon, D.O. located?
The NPPES record lists a practice address at 1777 Green Bay RD, Highland Park, IL, 60035. Phone: (847) 433-3460. Providers update this record themselves, so call before visiting.
How can I verify Matthew John Snowdon, D.O.'s license?
NPPES lists Illinois license number 036150001, 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 Matthew John Snowdon, D.O. prescribe under Medicare Part D?
In 2024, Matthew John Snowdon, D.O. had 4,291 Medicare Part D claims for 459 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Matthew John Snowdon, D.O.'s MIPS final score?
The 2023 MIPS final score is 93.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.