Upton Gardner Siddons, MD
Family Medicine Physician · Greenwood, AR
Upton Gardner Siddons, MD is a family medicine physician with a practice address in Greenwood, Arkansas, and NPI 1871084301, issued on May 21, 2018. Check the license (Arkansas E-12892, as entered in NPPES) on the Arkansas State Medical Board; the Medicare figures below come from public CMS files.
- Name
- Upton Gardner Siddons
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- E-12892 AR
Self-reported in NPPES; status is on the state search - Practice location
- 1480 W Center St, Greenwood, AR 72936
- Phone
- (479) 996-5585
- Enumerated
- May 21, 2018
- Record last updated
- May 10, 2022
- Medicare enrollment
- Enrolled (PECOS I20210806001627); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,681 in Arkansas → Look up another NPI →
Also registered at 1480 W Center St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Wilson Cruz-Leal, M.D.Family Medicine Physician1477644979
- Dwight Johnson, MDFamily Medicine Physician1134106743
- Megan Schroyer, MDInternal Medicine Physician1558522193
Verify Upton Gardner Siddons in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArkansas State Medical Board
Search for license E-12892Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average family medicine physician in 2024
10,026 Medicare Part D claims for 457 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 315 claims were for opioids.
Most prescribed
- Atorvastatin Calcium496 claims
- Losartan Potassium334 claims
- Amlodipine Besylate280 claims
- Furosemide264 claims
- Gabapentin249 claims
- Levothyroxine Sodium232 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: $175.34
10 payments; by number, the most common kind was food and beverage; the largest payer was Phathom Pharmaceuticals, Inc. The 55,478 providers of this specialty with any payment received $902.55 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 2 group practices
- Baptist Health ServicesGreenwood, AR
- University OF Arkansas For Medical SciencesFort Smith, AR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Upton Gardner Siddons among 1,681 family medicine physician records in Arkansas
Upton Gardner Siddons, MD is one of 1,681 family medicine physician records with a practice address in Arkansas. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 81% of them.
- NPI issued2018 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2021 · median 2004 among the 1,156 with a school on file
- Record last updated2022 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 family medicine physician records list a practice address in Greenwood
They are 8 of the 105 NPPES records with a practice address in Greenwood, and 1,681 family medicine physician records in Arkansas.
All 1,681 in Arkansas → Every provider in Greenwood → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Lance Barton, MDGreenwood, AR 729361427085851
- Thomas Bonin, MDGreenwood, AR 729361215902358
- Wilson Cruz-Leal, M.D.Greenwood, AR 729361477644979
- Deborah Hays, MDGreenwood, AR 729361831187699
- Dwight Johnson, MDGreenwood, AR 729361134106743
- Aaron White, MDGreenwood, AR 729361780670604
- John Young, DOGreenwood, AR 729361477134559
- Thomas Tinsman, M.D.Hackett, AR 729371801893102
Common questions
What is Upton Gardner Siddons, MD's NPI number?
Upton Gardner Siddons, MD's National Provider Identifier (NPI) is 1871084301, issued on May 21, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Upton Gardner Siddons, MD located?
The NPPES record lists a practice address at 1480 W Center St, Greenwood, AR, 72936. Phone: (479) 996-5585. Providers update this record themselves, so call before visiting.
How can I verify Upton Gardner Siddons, MD's license?
NPPES lists Arkansas license number E-12892, as entered by the provider. Search the Arkansas State Medical Board at https://armedicalboard.adh.arkansas.gov/public/verify/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Upton Gardner Siddons, MD prescribe under Medicare Part D?
In 2024, Upton Gardner Siddons, MD had 10,026 Medicare Part D claims for 457 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.