Dr. Zachary Sumner, DO
- Medicare services, 2024
- 160
- Medicare patients, 2024
- 124
- Part D claims, 2024
- 265
- MIPS score, 2024
- 96
- Hospital affiliations
- 2
- Practice address
- 1110 North Sarah Dewitt Drive, Gonzales, TX 78629
- Practice phone
- Call (830) 672-7581
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Zachary Sumner is an emergency medicine physician in Gonzales, Texas
Dr. Sumner practices at Memorial Hospital in Gonzales, Texas, part of Gonzales Healthcare Systems.
Dr. Sumner's NPI, 1578137576, was assigned on May 14, 2021. Dr. Sumner graduated from Texas College of Osteopathic Medicine in 2021. Dr. Sumner holds Texas license U3664.
- NPI
- 1578137576NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1456751197
- NPI enumeration date
- May 14, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (830) 672-7581
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Zachary Sumner practices at Memorial Hospital in Gonzales, Texas
Dr. Sumner's primary practice is Memorial Hospital, at 1110 North Sarah Dewitt Drive, Gonzales, TX 78629 in Gonzales County. The practice phone is (830) 672-7581.
- Memorial Hospital1110 North Sarah Dewitt Drive, Gonzales, TX 78629 · Gonzales CountyPhone(830) 672-7581
Source: Dmand AI Affiliation Data
Dr. Zachary Sumner is affiliated with 3 sites of care and 4 medical groups
Dr. Sumner's primary practice is Memorial Hospital in Gonzales, Texas, part of Gonzales Healthcare Systems. Dr. Sumner is also affiliated with Val Verde Regional Medical Center. The medical group on file is Gonzales Emergency Partners. Dmand AI also links Dr. Sumner to 3 more medical groups and 1 hospice, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Zachary Sumner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sumner practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Memorial Hospital | Available with a free account |
| +2 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Gonzales Healthcare Systems and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Zachary Sumner is one of 4,831 emergency medicine physicians in Texas
Emergency medicine is Dr. Sumner's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Sumner is board certified in family medicine by the American Board of Family Medicine. Dr. Sumner is licensed in Texas.
Specialties and state licenses
- Emergency medicine, TexasPrimary
Emergency medicine physicians near Dr. Sumner
Counts of emergency medicine physicians 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
Dr. Zachary Sumner billed Medicare for 160 services in 2024
CMS data shows 160 Medicare services from Dr. Sumner across 4 procedure codes in 2024, for 124 Medicare patients. Medicare paid $13,545 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Sumner's Medicare services by type, 2024
- Office and hospital visits121
- Tests and treatments39
Dr. Sumner compared with the Texas median for emergency medicine physicians, 2024
- Dr. Sumner
- Texas median
- Medicare services
- 160vs 22529% below
- Medicare patients
- 124vs 20640% below
- Part D claims
- 63vs 7415% below
Medians across 4,588 emergency medicine physicians in Texas with Dmand AI profiles that report each measure.
Dr. Sumner's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Zachary Sumner treated 124 Medicare patients in 2024, average age 76
CMS counts 124 Medicare patients who saw Dr. Sumner in 2024. The largest group is 75 to 84, with 42 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 29% are also on Medicaid. Their average risk score is 1.76, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Sumner's median patient age at 60, with 56% women.
Dr. Sumner's Medicare patients by age, 2024
Dr. Sumner's Medicare patients by sex, 2024
- Women6855%
- Men5645%
Chronic conditions among Dr. Sumner's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes51%
- Arthritis48%
- Ischemic heart disease43%
- Chronic kidney disease40%
- Anxiety35%
- Mood disorders35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Sumner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Zachary Sumner wrote 265 Medicare Part D claims in 2024
In 2024, Dr. Sumner wrote 265 Medicare Part D claims for 131 patients. 85% of them were for generic drugs. CMS names the drug for 63 of them, across 4 drugs with 11 or more claims each, at $477 in total drug cost. In 2023, CMS named 23 claims across 1 drug.
Dr. Sumner's Part D claims by kind of drug, 2024
- Generic224 claims85%
- Brand-name41 claims15%
Dr. Sumner's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Sumner's Part D claims, 2024
- Antibiotics21%56 of 265 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 232024: 63174%
Drugs named by CMS: 4 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Zachary Sumner scored 96 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 96 out of 100 for Dr. Sumner for performance year 2024, reported as part of a group. Dr. Sumner accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Sumner's MIPS scores, performance year 2024
- 96of 100Final score
- 91of 100Quality
- 40of 100Improvement Activities
- 87of 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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Dr. Zachary Sumner received $61 in industry payments in 2024
CMS Open Payments shows 2 general payments to Dr. Sumner from 2 drug and device companies in 2024. Food and beverage make up the largest share, 100% of the total. Tactile Systems Technology Inc paid the most, $31.
Companies that paid Dr. Sumner the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Zachary Sumner graduated from Texas College of Osteopathic Medicine
Dr. Sumner graduated from Texas College of Osteopathic Medicine in 2021.
- Medical school
- Board certified in family medicine
- Board certified in 2023 - 2026
Source: Dmand AI Professional Profile Data
Dr. Zachary Sumner accepts plans from 14 insurance carriers
Dr. Sumner is in network with 14 carriers, including United Healthcare, Blue Cross Blue Shield of Michigan and Elevance. HMO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Elevance
- Aetna
- Alliant Health Plans
- HCSC
- Baylor Scott and White
- Blue Cross and Blue Shield of Kansas City
- +6 more carriersWith a free account
Plan types Dr. Sumner accepts, by number of carriers
- HMO9
- PPO7
- EPO3
- POS3
- Medicare2
Source: Dmand AI Insurance Network Data
Sources for Dr. Zachary Sumner'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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 and Drug (CMS) (opens in a new tab)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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| 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 Dr. Zachary Sumner
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Zachary Sumner's NPI number?
Dr. Zachary Sumner's NPI number is 1578137576. It was assigned on May 14, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Zachary Sumner?
Dr. Zachary Sumner is an emergency medicine physician in Gonzales, Texas. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Zachary Sumner practice?
Dr. Sumner practices at 1110 North Sarah Dewitt Drive, Gonzales, TX 78629. Dr. Sumner's primary practice is Memorial Hospital in Gonzales, Texas, part of Gonzales Healthcare Systems. Dmand AI also links Dr. Sumner to 3 medical groups and 1 hospice.
What is Dr. Zachary Sumner's office phone number?
The practice phone on file for Dr. Sumner is (830) 672-7581.
What is Dr. Zachary Sumner's medical license number?
Dr. Sumner holds Texas license U3664.
Which hospitals is Dr. Zachary Sumner affiliated with?
Dr. Sumner practices at Memorial Hospital in Gonzales, Texas. Dr. Sumner is also affiliated with Val Verde Regional Medical Center.
What medical group is Dr. Zachary Sumner part of?
Dr. Sumner is linked to Gonzales Emergency Partners. Dmand AI links Dr. Sumner to 3 more medical groups.
Does Dr. Zachary Sumner accept Medicare?
Yes. CMS data shows Dr. Sumner billed Medicare for 160 services in 2024, and Dr. Sumner accepts Medicare assignment.
What is Dr. Zachary Sumner's MIPS score?
Dr. Sumner's MIPS final score for performance year 2024 is 96 out of 100, reported as part of a group.
How many Medicare patients does Dr. Zachary Sumner see?
CMS counts 124 Medicare patients who saw Dr. Sumner in 2024, with an average age of 76.
Show 7 more questionsShow fewer questions
Is Dr. Zachary Sumner board certified?
Yes. Dr. Sumner is board certified in family medicine by the American Board of Family Medicine.
What services does Dr. Zachary Sumner bill to Medicare?
In 2024, Dr. Sumner's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and heart test or procedure (93010).
Where did Dr. Zachary Sumner go to medical school?
Dr. Sumner graduated from Texas College of Osteopathic Medicine in 2021.
What drugs does Dr. Zachary Sumner prescribe most?
In 2024 Medicare Part D data, Dr. Sumner's most prescribed drugs by claims were Cephalexin, Atorvastatin Calcium and Fluticasone Propionate.
Has Dr. Zachary Sumner received payments from drug or device companies?
CMS Open Payments shows $61 in general payments to Dr. Sumner from 2 companies from 2024 to 2024. The largest total came from Tactile Systems Technology Inc.
How long has Dr. Zachary Sumner been practicing?
Dr. Sumner graduated from medical school in 2021, 5 years ago.
What insurance does Dr. Zachary Sumner accept?
Dr. Sumner is in network with 14 carriers, including United Healthcare, Blue Cross Blue Shield of Michigan and Elevance. HMO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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