NPPES file of Aug 9, 2026

Rebecca S. Hammes, ARNP

Women's Health Nurse Practitioner · Cedar Rapids, IA

Rebecca S. Hammes, ARNP is a women's health nurse practitioner with a practice address in Cedar Rapids, Iowa, and NPI 1679956379, issued on Jun 30, 2015. Check the license (Iowa F148815, as entered in NPPES) with the Iowa board that licenses this profession; 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
1679956379
Name
Rebecca S. Hammes
Credential
ARNP
Primary taxonomy
Women's Health Nurse Practitioner 363LW0102X
License numbers
F148815 IA
209.012729 IL
Self-reported in NPPES; status is on the state search
Practice location
855 A Avenue NE, Cedar Rapids, IA 52402
Phone
(319) 368-5500
Enumerated
Jun 30, 2015
Record last updated
Jun 25, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(319) 368-5503
Medicare enrollment
Enrolled (PECOS I20170914003695); 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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8 nearest women's health nurse practitioner records → All 123 in Iowa → Look up another NPI →

Also registered at 855 A Avenue NE

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

  1. Melissa Becwar, ARNPWomen's Health Nurse Practitioner1205400132
  2. Scott Bemus, D.O.Obstetrics & Gynecology Physician1891782272
  3. Claire Ida Cundiff, MDObstetrics & Gynecology Physician1104069137
  4. Jane Lyons, D.O.Obstetrics Physician1861492753
  5. Nicole Myers, ARNP (FNP-BC)Women's Health Nurse Practitioner1285078196
  6. Debra Piehl, M.D.Obstetrics & Gynecology Physician1376753715

Verify Rebecca S. Hammes in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Iowa board licenses this profession
    Search for license F148815    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
Find the Iowa license search

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24% fewer Medicare Part D claims than the average women's health nurse practitioner in 2024

166 Medicare Part D claims for 74 beneficiaries, against an average of 217 among the 3,809 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.

  1. Rebecca Hammes166
  2. Specialty average217

Most prescribed

  1. Estradiol27 claims
  2. Fluconazole17 claims
  3. Oxybutynin Chloride Er17 claims
  4. Triamcinolone Acetonide14 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: $14.22

1 payment: food and beverage; the largest payer was Organon Llc. The 3,574 providers of this specialty with any payment received $426.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Rebecca Hammes$14.22
  2. Specialty average$426.02

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

  1. OB-Gyn Associates PCCedar Rapids, IA

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

Rebecca S. Hammes among 123 women's health nurse practitioner records in Iowa

Rebecca S. Hammes, ARNP is one of 123 women's health nurse practitioner records with a practice address in Iowa. 59% 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 64% of them.

  • NPI issued2015 · 64% of these records are older, 30% newer
  • In a Medicare fileYes · 59% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2014 · median 2014 among the 61 with a school on file
  • Record last updated2019 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LW0102X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Women's Health Nurse Practitioner providers in Iowa

There are 123 women's health nurse practitioner records in Iowa.

All 123 in Iowa → Every provider in Cedar Rapids → Women's Health Nurse Practitioner nationwide →

The 8 women's health nurse practitioner records with the nearest ZIP codes

  1. Melissa Becwar, ARNPCedar Rapids, IA 524021205400132
  2. Jennifer Burgett, ARNPCedar Rapids, IA 524021811388440
  3. Phyllis Green, WHCNPCedar Rapids, IA 524021558331439
  4. Lauren Helle, ARNP (FNP-C)Cedar Rapids, IA 524021205794294
  5. Nicole Myers, ARNP (FNP-BC)Cedar Rapids, IA 524021285078196
  6. Sara Olmstead, ARNPCedar Rapids, IA 524021730528225
  7. Christina Osborn, ARNPCedar Rapids, IA 524021790413185
  8. Nicole Baccam, ARNPCedar Rapids, IA 524031154666527

Common questions

What is Rebecca S. Hammes, ARNP's NPI number?

Rebecca S. Hammes, ARNP's National Provider Identifier (NPI) is 1679956379, issued on Jun 30, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Rebecca S. Hammes, ARNP located?

The NPPES record lists a practice address at 855 A Avenue NE, Cedar Rapids, IA, 52402. Phone: (319) 368-5500. Providers update this record themselves, so call before visiting.

How can I verify Rebecca S. Hammes, ARNP's license?

NPPES lists Iowa license number F148815, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.

How much does Rebecca S. Hammes, ARNP prescribe under Medicare Part D?

In 2024, Rebecca S. Hammes, ARNP had 166 Medicare Part D claims for 74 beneficiaries; the average among women's health nurse practitioner prescribers was 217. 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.