David Mason, PA-C
- Medicare patients, 2024
- 693
- Part D claims, 2024
- 762
- MIPS score, 2024
- 90
- Hospital affiliations
- 5
- Industry payments
- $37
- Practice address
- 510 Lincoln Drive, Herrin, IL 62948
- Practice phone
- Call (618) 997-6800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Southern Illinois Orthopedic Center
Surgery Center - Medicare-Certified · Herrin, Illinois
Find David Mason's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
David Mason is a physician assistant in Herrin, Illinois
David Mason practices at Southern Illinois Orthopedic Center in Herrin, Illinois.
David Mason's NPI, 1649210766, was assigned on June 7, 2006. David Mason holds Illinois license 085002553.
- NPI
- 1649210766NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2860410313
- NPI enumeration date
- June 7, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (618) 997-6800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
David Mason practices at Southern Illinois Orthopedic Center in Herrin, Illinois
David Mason's primary practice is Southern Illinois Orthopedic Center, at 510 Lincoln Drive, Herrin, IL 62948. The practice phone is (618) 997-6800.
- Southern Illinois Orthopedic Center510 Lincoln Drive, Herrin, IL 62948Phone(618) 997-6800
Source: Dmand AI Affiliation Data
David Mason is affiliated with 8 sites of care and 3 medical groups
David Mason's primary practice is Southern Illinois Orthopedic Center in Herrin, Illinois. David Mason is also affiliated with SIH Herrin Hospital. The medical group on file is Select Physical Therapy. Dmand AI also links David Mason to 4 more hospitals, 2 medical groups, 1 home health agency and 1 rural health clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at David Mason's practice
Dmand AI tracks the electronic health record (EHR) system at each site where David Mason practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Southern Illinois Orthopedic Center | Available with a free account |
| +7 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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David Mason is one of 4,299 physician assistants in Illinois
Physician assistant is David Mason's primary specialty in the NPI Registry, under taxonomy code 363A00000X. David Mason is licensed in Illinois.
Specialties and state licenses
- Physician assistant, IllinoisPrimary
Physician assistants near David Mason
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
David Mason treated 693 Medicare patients in 2024, average age 73
CMS counts 693 Medicare patients who saw David Mason in 2024. The largest group is 65 to 74, with 297 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 26% are also on Medicaid. Their average risk score is 1.21, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts David Mason's median patient age at 71, with 62% women.
David Mason's Medicare patients by age, 2024
David Mason's Medicare patients by sex, 2024
- Women44464%
- Men24936%
Chronic conditions among David Mason's Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Arthritis69%
- Anxiety35%
- Diabetes34%
- Ischemic heart disease29%
- Mood disorders27%
- COPD24%
Share of Medicare patients with each condition. A patient can have several.
David Mason's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women62%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
David Mason wrote 762 Medicare Part D claims in 2024
In 2024, David Mason wrote 762 Medicare Part D claims for 490 patients. 100% of them were for generic drugs.
David Mason's Part D claims by kind of drug, 2024
- Generic761 claims100%
- Brand-name and other1 claims0%
Drug classes CMS tracks in David Mason's Part D claims, 2024
- Opioids67%514 of 762 claims
- Antibiotics7%50 of 762 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
David Mason scored 90 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 90 out of 100 for David Mason for performance year 2024, reported as part of a group. David Mason accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
David Mason's MIPS scores, performance year 2024
- 90of 100Final score
- 83.2of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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David Mason received $37 in industry payments in 2025
CMS Open Payments shows 2 general payments to David Mason from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Vertex Pharmaceuticals Incorporated paid the most, $22.
Companies that paid David Mason the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for David Mason's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about David Mason
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is David Mason's NPI number?
David Mason's NPI number is 1649210766. It was assigned on June 7, 2006, and it is active in the NPI Registry.
What does David Mason specialize in?
David Mason is a physician assistant in Herrin, Illinois. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does David Mason practice?
David Mason practices at 510 Lincoln Drive, Herrin, IL 62948. David Mason's primary practice is Southern Illinois Orthopedic Center in Herrin, Illinois. Dmand AI also links David Mason to 4 hospitals, 2 medical groups, 1 home health agency and 1 rural health clinic.
What is David Mason's office phone number?
The practice phone on file for David Mason is (618) 997-6800.
What is David Mason's medical license number?
David Mason holds Illinois license 085002553.
Which hospitals is David Mason affiliated with?
David Mason is affiliated with SIH Herrin Hospital. Dmand AI links David Mason to 4 more hospitals.
What medical group is David Mason part of?
David Mason is linked to Select Physical Therapy. Dmand AI links David Mason to 2 more medical groups.
Does David Mason accept Medicare?
Yes. CMS lists David Mason as accepting Medicare assignment.
What is David Mason's MIPS score?
David Mason's MIPS final score for performance year 2024 is 90 out of 100, reported as part of a group.
How many Medicare patients does David Mason see?
CMS counts 693 Medicare patients who saw David Mason in 2024, with an average age of 73.
Has David Mason received payments from drug or device companies?
CMS Open Payments shows $37 in general payments to David Mason from 2 companies from 2025 to 2025. The largest total came from Vertex Pharmaceuticals Incorporated.
How long has David Mason been practicing?
David Mason graduated from medical school in 2005, 21 years ago.
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