Nathan B. Allen, D.O.
Family Medicine Physician · Leon, IA
Nathan B. Allen, D.O. is a family medicine physician with a practice address in Leon, Iowa, and NPI 1629398987, issued on Jun 9, 2010. Check the license (Iowa 4389, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Nathan B. Allen
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 4389 IA
Self-reported in NPPES; status is on the state search - Practice location
- 302 NE 14TH St, Leon, IA 50144
- Phone
- (641) 446-2383
- Enumerated
- Jun 9, 2010
- Record last updated
- Sep 10, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (641) 446-2382
- Medicare enrollment
- Enrolled (PECOS I20130819000690); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,336 in Iowa → Look up another NPI →
Also registered at 302 NE 14TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Holly ArnoldCounselor1467752667
- Ryan BanksPharmacist1649794181
- Michael BlackFamily Nurse Practitioner1598439713
- Elizabeth Brant, ARNP, FNP-CFamily Nurse Practitioner1508598640
- Jean Clapham, ARNPFamily Nurse Practitioner1851740781
- Devy CombsCounselor1881000636
Verify Nathan B. Allen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 4389Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.5 times the Medicare Part D claims of the average family medicine physician in 2024
12,379 Medicare Part D claims for 656 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 256 claims were for opioids.
Most prescribed
- Lisinopril522 claims
- Levothyroxine Sodium463 claims
- Omeprazole334 claims
- Atorvastatin Calcium332 claims
- Amlodipine Besylate322 claims
- Metoprolol Succinate294 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.
The MIPS final score for 2023 (Medicare payment program): 97.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $159.87
9 payments; by number, the most common kind was food and beverage; the largest payer was Bayer Healthcare 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 one group practice
- Infinity HealthLeon, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathan B. Allen among 2,336 family medicine physician records in Iowa
Nathan B. Allen, D.O. 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 2010, is newer than 63% of them.
- NPI issued2010 · 63% of these records are older, 35% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2010 · median 2006 among the 1,367 with a school on file
- Record last updated2013 · 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).
4 family medicine physician records list a practice address in Leon
They are 4 of the 49 NPPES records with a practice address in Leon, and 2,336 family medicine physician records in Iowa.
All 2,336 in Iowa → Every provider in Leon → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Patricia Magle, MDLeon, IA 501441295793719
- Scott Mial, MDLeon, IA 501441508891540
- Larry Richard, MDLeon, IA 501441134197643
- Mark Easter, D.O.Lamoni, IA 501401649249111
- Michael Daly, DOKnoxville, IA 501381154308278
- Katherine Dvorak, DOKnoxville, IA 501381750904686
- Jennifer Elkin, D.O.Knoxville, IA 501381821478439
- Thomas Hoehns, M.D.Knoxville, IA 501381346349388
Common questions
What is Nathan B. Allen, D.O.'s NPI number?
Nathan B. Allen, D.O.'s National Provider Identifier (NPI) is 1629398987, issued on Jun 9, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Nathan B. Allen, D.O. located?
The NPPES record lists a practice address at 302 NE 14TH St, Leon, IA, 50144. Phone: (641) 446-2383. Providers update this record themselves, so call before visiting.
How can I verify Nathan B. Allen, D.O.'s license?
NPPES lists Iowa license number 4389, 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 Nathan B. Allen, D.O. prescribe under Medicare Part D?
In 2024, Nathan B. Allen, D.O. had 12,379 Medicare Part D claims for 656 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Nathan B. Allen, D.O.'s MIPS final score?
The 2023 MIPS final score is 97.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.