Zachary Daniel Smith, M.D.
Gastroenterology Physician · Oklahoma City, OK
Zachary Daniel Smith, M.D. is a gastroenterology physician with a practice address in Oklahoma City, Oklahoma, and NPI 1437537024, issued on May 14, 2015. Check the license (Oklahoma 31589, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Zachary Daniel Smith
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 31589 OK
Self-reported in NPPES; status is on the state search - Practice location
- 3366 NW Expressway Ste 400, Oklahoma City, OK 73112
- Phone
- (405) 702-1300
- Enumerated
- May 14, 2015
- Record last updated
- Jul 24, 2024
- Medicare enrollment
- Enrolled (PECOS I20210709000111); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 160 in Oklahoma → Look up another NPI →
Also registered at 3366 NW Expressway Ste 400
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amarilys Fernandez-Maldonado, MDGastroenterology Physician1952895906
- Sumit Walia, MDGastroenterology Physician1295963247
Verify Zachary Daniel Smith in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
Search for license 31589Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% more Medicare Part D claims than the average gastroenterology physician in 2024
1,199 Medicare Part D claims for 491 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Omeprazole253 claims
- Sod Sulf-Potass Sulf-Mag Sulf188 claims
- Pantoprazole Sodium110 claims
- Esomeprazole Magnesium83 claims
- Famotidine76 claims
- Linzess68 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: $1,194.68
72 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 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 3 group practices
- Comanche County Healthcare CorporationLawton, OK
- Digestive Disease Specialists IncOklahoma City, OK
- Integris Bass Baptist Health CenterEnid, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Zachary Daniel Smith among 160 gastroenterology physician records in Oklahoma
Zachary Daniel Smith, M.D. is one of 160 gastroenterology physician records with a practice address in Oklahoma. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 85% of them.
- NPI issued2015 · 85% of these records are older, 13% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2015 · median 2000 among the 106 with a school on file
- Record last updated2024 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Oklahoma
There are 160 gastroenterology physician records in Oklahoma.
All 160 in Oklahoma → Every provider in Oklahoma City → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Kirtida Kumar, MDOklahoma City, OK 731121649274374
- John Maple, DOOklahoma City, OK 731121902879455
- Paul Maton, M.D.Oklahoma City, OK 731121538143466
- Matthew McBride, MDOklahoma City, OK 731121871536920
- Mark Mellow, M.D.Oklahoma City, OK 731121366426298
- Don Murray, M.D.Oklahoma City, OK 731121215912787
- Carl Raczkowski, M.D.Oklahoma City, OK 731121851375646
- Robert Rankin, M.D.Oklahoma City, OK 731121174507966
Common questions
What is Zachary Daniel Smith, M.D.'s NPI number?
Zachary Daniel Smith, M.D.'s National Provider Identifier (NPI) is 1437537024, issued on May 14, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Zachary Daniel Smith, M.D. located?
The NPPES record lists a practice address at 3366 NW Expressway Ste 400, Oklahoma City, OK, 73112. Phone: (405) 702-1300. Providers update this record themselves, so call before visiting.
How can I verify Zachary Daniel Smith, M.D.'s license?
NPPES lists Oklahoma license number 31589, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Zachary Daniel Smith, M.D. prescribe under Medicare Part D?
In 2024, Zachary Daniel Smith, M.D. had 1,199 Medicare Part D claims for 491 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.