William Martin, M.D.
Emergency Medicine Physician · Cedar Rapids, IA
William Martin, M.D. is an emergency medicine physician with a practice address in Cedar Rapids, Iowa, and NPI 1568859874, issued on Apr 24, 2015. Check the license (Iowa MD-47407, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- William Martin
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- MD-47407 IA
Self-reported in NPPES; status is on the state search - Practice location
- 1026 A Ave NE, Cedar Rapids, IA 52402
- Phone
- (319) 369-8600
- Enumerated
- Apr 24, 2015
- Record last updated
- Oct 6, 2025
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 509 in Iowa → Look up another NPI →
Also registered at 1026 A Ave NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Martin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license MD-47407Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5% more Medicare Part D claims than the average emergency medicine physician in 2024
238 Medicare Part D claims for 157 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 31 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen26 claims
- Ondansetron Odt24 claims
- Amoxicillin-Clavulanate Potass23 claims
- Cephalexin20 claims
- Azithromycin16 claims
- Prednisone16 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.
William Martin among 509 emergency medicine physician records in Iowa
William Martin, M.D. is one of 509 emergency medicine physician records with a practice address in Iowa. 74% 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 65% of them.
- NPI issued2015 · 65% of these records are older, 32% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 45% of these records are
- Record last updated2025 · 51% 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 Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
61 emergency medicine physician records list a practice address in Cedar Rapids
They are 61 of the 2,949 NPPES records with a practice address in Cedar Rapids, and 509 emergency medicine physician records in Iowa.
All 509 in Iowa → Every provider in Cedar Rapids → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Alan Brinkmann, MDCedar Rapids, IA 524021629044474
- Anthony Carter, DOCedar Rapids, IA 524021386610947
- Jeffrey Curnes, DOCedar Rapids, IA 524021831165695
- Tanya Decker, MDCedar Rapids, IA 524021528034386
- Ryan Dowden, MDCedar Rapids, IA 524021700830726
- Yasir Elhawi, MDCedar Rapids, IA 524021225085418
- Steven Gorsch, MDCedar Rapids, IA 524021972579548
- Larry Helvey, MDCedar Rapids, IA 524021396711164
Common questions
What is William Martin, M.D.'s NPI number?
William Martin, M.D.'s National Provider Identifier (NPI) is 1568859874, issued on Apr 24, 2015. An NPI identifies a provider in billing; it is not a license.
Where is William Martin, M.D. located?
The NPPES record lists a practice address at 1026 A Ave NE, Cedar Rapids, IA, 52402. Phone: (319) 369-8600. Providers update this record themselves, so call before visiting.
How can I verify William Martin, M.D.'s license?
NPPES lists Iowa license number MD-47407, 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 William Martin, M.D. prescribe under Medicare Part D?
In 2024, William Martin, M.D. had 238 Medicare Part D claims for 157 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.