Mathew Theron Southwick, PA-C
- Medicare patients, 2024
- 167
- Part D claims, 2024
- 371
- MIPS score, 2024
- 85
- Hospital affiliations
- 1
- Industry payments
- $67
- Practice address
- 2300 East 30th, Street Building A, Farmington, NM 87401
- Practice phone
- Call (505) 564-2300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
San Juan Regional Surgery Center
Surgery Center - Medicare-Certified · Farmington, New Mexico
Find Mathew Southwick's professional email, personal email and mobile number
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Mathew Theron Southwick is a physician assistant in Farmington, New Mexico
Mathew Southwick practices at San Juan Regional Surgery Center in Farmington, New Mexico.
Mathew Southwick's NPI, 1346798204, was assigned on September 20, 2016.
- NPI
- 1346798204NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9931489366
- NPI enumeration date
- September 20, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (505) 564-2300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Mathew Theron Southwick practices at San Juan Regional Surgery Center in Farmington, New Mexico
Mathew Southwick's primary practice is San Juan Regional Surgery Center, at 2300 East 30th, Street Building A, Farmington, NM 87401. The practice phone is (505) 564-2300.
- San Juan Regional Surgery Center2300 East 30th, Street Building A, Farmington, NM 87401Phone(505) 564-2300
Source: Dmand AI Affiliation Data
Mathew Theron Southwick is affiliated with 4 sites of care and 2 medical groups
Mathew Southwick's primary practice is San Juan Regional Surgery Center in Farmington, New Mexico. Mathew Southwick is also affiliated with San Juan Regional Medical Center. The medical group on file is San Juan Health Partners Physiatry. Dmand AI also links Mathew Southwick to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Mathew Theron Southwick's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mathew Southwick practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| San Juan Regional Surgery Center | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Mathew Theron Southwick is one of 715 physician assistants in New Mexico
Physician assistant is Mathew Southwick's primary specialty in the NPI Registry, under taxonomy code 363A00000X.
Specialties and state licenses
- Physician assistantPrimary
- Surgical physician assistant
Physician assistants near Mathew Southwick
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
Mathew Theron Southwick treated 167 Medicare patients in 2024, average age 75
CMS counts 167 Medicare patients who saw Mathew Southwick in 2024. The largest group is 65 to 74, with 81 patients. 75% of them have arthritis, and 74% have high blood pressure. 10% are also on Medicaid. Their average risk score is 1.01, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Mathew Southwick's median patient age at 71, with 60% women.
Mathew Southwick's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Mathew Southwick's Medicare patients by sex, 2024
- Women10060%
- Men6740%
Chronic conditions among Mathew Southwick's Medicare patients, 2024
- Arthritis75%
- High blood pressure74%
- High cholesterol62%
- Diabetes32%
- Mood disorders23%
- Depression21%
- Ischemic heart disease20%
- Chronic kidney disease19%
Share of Medicare patients with each condition. A patient can have several.
Mathew Southwick'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
- Women60%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mathew Theron Southwick wrote 371 Medicare Part D claims in 2024
In 2024, Mathew Southwick wrote 371 Medicare Part D claims for 153 patients. 99% of them were for generic drugs.
Mathew Southwick's Part D claims by kind of drug, 2024
- Generic368 claims99%
- Brand-name and other3 claims1%
Drug classes CMS tracks in Mathew Southwick's Part D claims, 2024
- Opioids31%116 of 371 claims
- Antibiotics7%27 of 371 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
Mathew Theron Southwick scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Mathew Southwick for performance year 2024, reported as part of a group. Mathew Southwick accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Mathew Southwick's MIPS scores, performance year 2024
- 85of 100Final score
- 64of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 82of 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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Mathew Theron Southwick received $67 in industry payments in 2025
CMS Open Payments shows 1 general payment to Mathew Southwick from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Zimmer Biomet Holdings, Inc. paid the most, $67.
Companies that paid Mathew Southwick 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 Mathew Theron Southwick'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 Mathew Theron Southwick
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mathew Theron Southwick's NPI number?
Mathew Theron Southwick's NPI number is 1346798204. It was assigned on September 20, 2016, and it is active in the NPI Registry.
What does Mathew Theron Southwick specialize in?
Mathew Theron Southwick is a physician assistant in Farmington, New Mexico. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Mathew Theron Southwick practice?
Mathew Southwick practices at 2300 East 30th, Street Building A, Farmington, NM 87401. Mathew Southwick's primary practice is San Juan Regional Surgery Center in Farmington, New Mexico. Dmand AI also links Mathew Southwick to 2 group practices and clinics and 1 medical group.
What is Mathew Theron Southwick's office phone number?
The practice phone on file for Mathew Southwick is (505) 564-2300.
Which hospitals is Mathew Theron Southwick affiliated with?
Mathew Southwick is affiliated with San Juan Regional Medical Center.
What medical group is Mathew Theron Southwick part of?
Mathew Southwick is linked to San Juan Health Partners Physiatry. Dmand AI links Mathew Southwick to 1 more medical group.
Does Mathew Theron Southwick accept Medicare?
Yes. CMS lists Mathew Southwick as accepting Medicare assignment.
What is Mathew Theron Southwick's MIPS score?
Mathew Southwick's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
How many Medicare patients does Mathew Theron Southwick see?
CMS counts 167 Medicare patients who saw Mathew Southwick in 2024, with an average age of 75.
Has Mathew Theron Southwick received payments from drug or device companies?
CMS Open Payments shows $67 in general payments to Mathew Southwick from 1 company from 2025 to 2025. The largest total came from Zimmer Biomet Holdings, Inc.
How long has Mathew Theron Southwick been practicing?
Mathew Southwick graduated from medical school in 2016, 10 years ago.
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