NPPES file of Aug 9, 2026

Mara Groom Hermiston, D.O.

Family Medicine Physician · Spirit Lake, IA

Mara Groom Hermiston, D.O. is a family medicine physician with a practice address in Spirit Lake, Iowa, and NPI 1437599297, issued on Jun 26, 2013. Check the license (Iowa R-9859, 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
1437599297
Name
Mara Groom Hermiston
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
R-9859 IA
Self-reported in NPPES; status is on the state search
Practice location
2301 Highway 71 Ste C, Spirit Lake, IA 51360
Phone
(712) 336-3750
Enumerated
Jun 26, 2013
Record last updated
Dec 27, 2024
Medicare enrollment
Enrolled (PECOS I20150130000255); accepts 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 2301 Highway 71 Ste C

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

  1. Averill Fuhs, DOFamily Medicine Physician1700306974
  2. Michael Kalkhoff, MDFamily Medicine Physician1649684325
  3. Bradley Meyer, D.O.Family Medicine Physician1043207939

Verify Mara Groom Hermiston in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license R-9859    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

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

6,840 Medicare Part D claims for 481 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 311 claims were for opioids.

  1. Mara Hermiston6,840
  2. Specialty average3,544

Most prescribed

  1. Levothyroxine Sodium437 claims
  2. Atorvastatin Calcium266 claims
  3. Omeprazole232 claims
  4. Losartan Potassium184 claims
  5. Gabapentin172 claims
  6. Meloxicam152 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.

One hospital affiliation

  1. Lakes Regional HealthcareSpirit Lake, IA · Acute Care Hospitals2 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

17 family medicine physician records list a practice address in Spirit Lake

They are 17 of the 144 NPPES records with a practice address in Spirit Lake, and 2,336 family medicine physician records in Iowa.

All 17 in Spirit Lake → All 2,336 in Iowa → Every provider in Spirit Lake →

Other family medicine physician records in Iowa

  1. Jennifer Aanestad, M.D.Durant, IA1386649341
  2. Amjad Abdelhady, MDSioux City, IA1033966700
  3. Afsana Abdullah, D.O.Bettendorf, IA1760583066
  4. Raja Ali Abdullah, MDCedar Falls, IA1356101000
  5. Laura Abels, DOAnkeny, IA1427313527
  6. Matthew AbendrothDes Moines, IA1972918894
  7. Mabra Abernathy, M.D.Coralville, IA1316922545
  8. Jennifer Abler, D.O.Altoona, IA1528159068
  9. Michael Abouassaly, M.D.West Burlington, IA1184790909
  10. Safa Abukhalil, M.B.B.SWest Des Moines, IA1982084463

Common questions

What is Mara Groom Hermiston, D.O.'s NPI number?

Mara Groom Hermiston, D.O.'s National Provider Identifier (NPI) is 1437599297, issued on Jun 26, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Mara Groom Hermiston, D.O. located?

The NPPES record lists a practice address at 2301 Highway 71 Ste C, Spirit Lake, IA, 51360. Phone: (712) 336-3750. Providers update this record themselves, so call before visiting.

How can I verify Mara Groom Hermiston, D.O.'s license?

NPPES lists Iowa license number R-9859, 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 Mara Groom Hermiston, D.O. prescribe under Medicare Part D?

In 2024, Mara Groom Hermiston, D.O. had 6,840 Medicare Part D claims for 481 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.