Alex Gordon Sieg, MD
Internal Medicine Physician · Davenport, IA
Alex Gordon Sieg, MD is an internal medicine physician with a practice address in Davenport, Iowa, and NPI 1417449570, issued on Jun 5, 2018. Check the license (Iowa MD-48607, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Alex Gordon Sieg
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD-48607 IA
Self-reported in NPPES; status is on the state search - Practice location
- 1401 W Central Park Ave, Davenport, IA 52804
- Phone
- (563) 421-1900
- Enumerated
- Jun 5, 2018
- Record last updated
- Jul 22, 2024
- Medicare enrollment
- Enrolled (PECOS I20240913002627); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 2018
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 1401 W Central Park Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Fareeduddin Ahmed, MDPhysical Medicine & Rehabilitation Physician1598745267
- Rebekka Jacobs, LMSWSocial Worker1497272538
- Kiwhoon Lee, M.D.Radiation Oncology Physician1568604916
- Natalie Reitz, MSN, ARNP, FNP-CFamily Nurse Practitioner1285331058
- Christine Sharis, MDRadiation Oncology Physician1033106729
- Heather Shuey, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1821703307
Verify Alex Gordon Sieg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license MD-48607Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average internal medicine physician in 2024
351 Medicare Part D claims for 117 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 37 claims were for opioids.
Most prescribed
- Acyclovir29 claims
- Anastrozole25 claims
- Prochlorperazine Maleate25 claims
- Ondansetron Hcl22 claims
- Ondansetron Odt19 claims
- Oxycodone Hcl19 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: $1,561.57
50 payments; by number, the most common kind was food and beverage; the largest payer was Myriad Genetic Laboratories, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Genesis Health SystemDavenport, IA
- Mercy Specialty ClinicClinton, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
33 internal medicine physician records list a practice address in Davenport
They are 33 of the 2,058 NPPES records with a practice address in Davenport, and 871 internal medicine physician records in Iowa.
All 33 in Davenport → All 871 in Iowa → Every provider in Davenport →
Other internal medicine physician records in Iowa
- Baha Abbad, MDWaterloo, IA1366050064
- Shazia Abbas, MDOttumwa, IA1205086998
- Duane Abbott, MDDes Moines, IA1417362666
- Ahmed Abdelhamid, MDIowa City, IA1306403795
- Mohammed Abdila, MDDavenport, IA1982338752
- Sidrah Abid, MDWaterloo, IA1497161830
- Thad Abrams, MDIowa City, IA1326022385
- Samer Abu Alula, M.D.Davenport, IA1447782578
- Hebah Abudawaba, MBBSIowa City, IA1518694405
- Arwa Aburizik, M.B., B.S.Iowa City, IA1356559298
Common questions
What is Alex Gordon Sieg, MD's NPI number?
Alex Gordon Sieg, MD's National Provider Identifier (NPI) is 1417449570, issued on Jun 5, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Alex Gordon Sieg, MD located?
The NPPES record lists a practice address at 1401 W Central Park Ave, Davenport, IA, 52804. Phone: (563) 421-1900. Providers update this record themselves, so call before visiting.
How can I verify Alex Gordon Sieg, MD's license?
NPPES lists Iowa license number MD-48607, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Alex Gordon Sieg, MD prescribe under Medicare Part D?
In 2024, Alex Gordon Sieg, MD had 351 Medicare Part D claims for 117 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.