NPPES file of Aug 9, 2026

Blaine Brian Westemeyer, M.D.

Family Medicine Physician · Marshalltown, IA

Blaine Brian Westemeyer, M.D. is a family medicine physician with a practice address in Marshalltown, Iowa, and NPI 1184005357, issued on Jun 14, 2015. Check the license (Iowa 43749, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1184005357
Name
Blaine Brian Westemeyer
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
43749 IA
Self-reported in NPPES; status is on the state search
Practice location
3 S 4TH Ave, Marshalltown, IA 50158
Phone
(641) 754-5145
Enumerated
Jun 14, 2015
Record last updated
Oct 10, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20170124000152); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3 S 4TH Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Pankaj Agrawal, MBBSAdult Medicine Physician1861706038
  2. Frances ArmsteadRegistered Dietitian1083157044
  3. Shawna Barnett, CRNA, DNPCertified Registered Nurse Anesthetist1295976918
  4. Sarah Bischoff, ARNPFamily Nurse Practitioner1497416762
  5. Marci BurnsPharmacist1992338222
  6. McKenzie CooperMedical Physician Assistant1487150991

Verify Blaine Brian Westemeyer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license 43749
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Iowa license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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93% fewer Medicare Part D claims than the average family medicine physician in 2024

251 Medicare Part D claims for 193 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 37 claims were for opioids.

  1. Blaine Westemeyer251
  2. Specialty average3,544

Most prescribed

  1. Cephalexin24 claims
  2. Hydrocodone-Acetaminophen22 claims
  3. Ondansetron Odt19 claims
  4. Amoxicillin-Clavulanate Potass12 claims
  5. Prednisone12 claims
  6. Oxycodone-Acetaminophen11 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.

Bills Medicare through one group practice

  1. Allen Memorial Hospital CorporationWaterloo, IA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Blaine Brian Westemeyer among 2,336 family medicine physician records in Iowa

Blaine Brian Westemeyer, M.D. is one of 2,336 family medicine physician records with a practice address in Iowa. 75% 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 73% of them.

  • NPI issued2015 · 73% of these records are older, 24% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2015 · median 2006 among the 1,367 with a school on file
  • Record last updated2018 · 61% 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 Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

18 family medicine physician records list a practice address in Marshalltown

They are 18 of the 443 NPPES records with a practice address in Marshalltown, and 2,336 family medicine physician records in Iowa.

The 8 family medicine physician records with the nearest ZIP codes

  1. James Demmel, M.D.Marshalltown, IA 501581811985559
  2. Lynne Desotel, MDMarshalltown, IA 501581568545960
  3. Patricia Fasbender, D.O.Marshalltown, IA 501581700847787
  4. Ross Huffman, DOMarshalltown, IA 501581871582973
  5. Darrell Jebsen, M.D.Marshalltown, IA 501581619966785
  6. Christine Jensen, MDMarshalltown, IA 501581720050297
  7. Laura Lasack, MDMarshalltown, IA 501581861468084
  8. Michael Miriovsky, MDMarshalltown, IA 501581669462099

Common questions

What is Blaine Brian Westemeyer, M.D.'s NPI number?

Blaine Brian Westemeyer, M.D.'s National Provider Identifier (NPI) is 1184005357, issued on Jun 14, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Blaine Brian Westemeyer, M.D. located?

The NPPES record lists a practice address at 3 S 4TH Ave, Marshalltown, IA, 50158. Phone: (641) 754-5145. Providers update this record themselves, so call before visiting.

How can I verify Blaine Brian Westemeyer, M.D.'s license?

NPPES lists Iowa license number 43749, 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 Blaine Brian Westemeyer, M.D. prescribe under Medicare Part D?

In 2024, Blaine Brian Westemeyer, M.D. had 251 Medicare Part D claims for 193 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.