Zachary Sumner, DO
Emergency Medicine Physician · San Antonio, TX
Zachary Sumner, DO is an emergency medicine physician with a practice address in San Antonio, Texas, and NPI 1578137576, issued on May 14, 2021. Check the license (Texas U3664, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Zachary Sumner
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- U3664 TX
BP10076938 TX
Self-reported in NPPES; status is on the state search - Practice location
- 11130 Christus Hills, San Antonio, TX 78251
- Phone
- (210) 703-9001
- Enumerated
- May 14, 2021
- Record last updated
- Aug 15, 2024
- Fax
- (210) 703-9155
- Medicare enrollment
- Enrolled (PECOS I20240606002576); accepts Medicare assignment
- Medical or professional school
- University Of North Texas Hsc, College Of Osteopathic Med, 2021
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 4,885 in Texas → Look up another NPI →
Also registered at 11130 Christus Hills
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Zachary Sumner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license U3664Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% more Medicare Part D claims than the average emergency medicine physician in 2024
265 Medicare Part D claims for 131 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Cephalexin18 claims
- Atorvastatin Calcium17 claims
- Fluticasone Propionate14 claims
- Ondansetron Odt14 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: $61.33
2 payments; by number, the most common kind was food and beverage; the largest payer was Tactile Systems Technology Inc. The 12,335 providers of this specialty with any payment received $953.79 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
- Gonzales Emergency Partners PLLCGonzales, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Zachary Sumner among 4,885 emergency medicine physician records in Texas
Zachary Sumner, DO is one of 4,885 emergency medicine physician records with a practice address in Texas. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 88% of them.
- NPI issued2021 · 88% of these records are older, 8% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2021 · median 2013 among the 2,779 with a school on file
- Record last updated2024 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
400 emergency medicine physician records list a practice address in San Antonio
They are 400 of the 37,749 NPPES records with a practice address in San Antonio, and 4,885 emergency medicine physician records in Texas.
All 4,885 in Texas → Every provider in San Antonio → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Brad Deykin, MDSan Antonio, TX 782511770526444
- Roy Dileo, MDSan Antonio, TX 782511821076738
- Robert Kacprowicz, M.D.San Antonio, TX 782511386611788
- Leilani Klinger, M.D.San Antonio, TX 782511861835423
- Matthew Lippstone, MDSan Antonio, TX 782511477597623
- Jeremy Lloyd, M.D.San Antonio, TX 782511477536266
- Bridgit Mennite, MDSan Antonio, TX 782511518131804
- Rolando Rios, M.D.San Antonio, TX 782511972823581
Common questions
What is Zachary Sumner, DO's NPI number?
Zachary Sumner, DO's National Provider Identifier (NPI) is 1578137576, issued on May 14, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Zachary Sumner, DO located?
The NPPES record lists a practice address at 11130 Christus Hills, San Antonio, TX, 78251. Phone: (210) 703-9001. Providers update this record themselves, so call before visiting.
How can I verify Zachary Sumner, DO's license?
NPPES lists Texas license number U3664, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Zachary Sumner, DO prescribe under Medicare Part D?
In 2024, Zachary Sumner, DO had 265 Medicare Part D claims for 131 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.