Brandyn William Mason, D.O.
Family Medicine Physician · Oak Lawn, IL
Brandyn William Mason, D.O. is a family medicine physician with a practice address in Oak Lawn, Illinois, and NPI 1205197613, issued on Jun 1, 2012. Check the license (Illinois 036138323, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Brandyn William Mason
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 036138323 IL
OT014817 PA
Self-reported in NPPES; status is on the state search - Practice location
- 4440 W 95TH St, Oak Lawn, IL 60453
- Phone
- (708) 634-0950
- Enumerated
- Jun 1, 2012
- Record last updated
- Oct 17, 2024
- Medicare enrollment
- Enrolled (PECOS I20150804003171); accepts Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2012
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 4440 W 95TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nadia Abdessalam, FNP-BCFamily Nurse Practitioner1356888283
- Akram Abdoue, M.D.Anesthesiology Physician1992752489
- Ahmad Abdulla, MDEmergency Medicine Physician1467202556
- Joseph Abraham, CRNACertified Registered Nurse Anesthetist1831653401
- Katherine Absalon, MOT, OTR/LOccupational Therapist1457753436
- Tassneem Abu-Rezeq, DNP, APRN, CPNP-ACPediatric Nurse Practitioner1831904663
Verify Brandyn William Mason 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 036138323Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% more Medicare Part D claims than the average family medicine physician in 2024
4,249 Medicare Part D claims for 414 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 280 claims were for opioids.
Most prescribed
- Atorvastatin Calcium286 claims
- Hydrocodone-Acetaminophen174 claims
- Lisinopril157 claims
- Omeprazole148 claims
- Levothyroxine Sodium138 claims
- Amlodipine Besylate125 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: $96.81
3 payments; by number, the most common kind was education; the largest payer was Novo Nordisk Inc. 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 one group practice
- Advocate Health And Hospitals CorporationOak Lawn, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brandyn William Mason among 6,215 family medicine physician records in Illinois
Brandyn William Mason, D.O. 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 2012, is newer than 61% of them.
- NPI issued2012 · 61% of these records are older, 36% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2012 · median 2006 among the 3,714 with a school on file
- Record last updated2024 · 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).
71 family medicine physician records list a practice address in Oak Lawn
They are 71 of the 2,993 NPPES records with a practice address in Oak Lawn, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Oak Lawn → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Sangili Chandran, M.D.Oak Lawn, IL 604531790705663
- Jarom Daszko, M.D.Oak Lawn, IL 604531487674693
- Emelie Ilarde, MDOak Lawn, IL 604531639194137
- Anastacia Largosa, M.D.Oak Lawn, IL 604531750329835
- Cynthia Ohata, M.D.Oak Lawn, IL 604531912949025
- Michael Olivieri, M.D.Oak Lawn, IL 604531124042189
- Paul Omastiak, MDOak Lawn, IL 604531821020124
- Warren Robinson, MDOak Lawn, IL 604531114037967
Common questions
What is Brandyn William Mason, D.O.'s NPI number?
Brandyn William Mason, D.O.'s National Provider Identifier (NPI) is 1205197613, issued on Jun 1, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Brandyn William Mason, D.O. located?
The NPPES record lists a practice address at 4440 W 95TH St, Oak Lawn, IL, 60453. Phone: (708) 634-0950. Providers update this record themselves, so call before visiting.
How can I verify Brandyn William Mason, D.O.'s license?
NPPES lists Illinois license number 036138323, 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 Brandyn William Mason, D.O. prescribe under Medicare Part D?
In 2024, Brandyn William Mason, D.O. had 4,249 Medicare Part D claims for 414 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.