NPI registry status
Active
2026 NPPES data Obstetrics & Gynecology Nurse Practitioner NPI 1184622425 A.R.N.P.
Verify on CMS → Deanne Bolhuis, A.R.N.P.
Obstetrics & Gynecology Nurse Practitioner in Waterloo, Iowa.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 2,871 in Obstetrics & Gynecology Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
219
Medicare Part D claims · 90 beneficiaries · Obstetrics & Gynecology Nurse Practitioner avg: 241
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Deanne Bolhuis, A.R.N.P. filed 219 Medicare Part D claims in 2024 as an Obstetrics & Gynecology Nurse Practitioner in Waterloo, Iowa, prescribing 91% generic.
- 219
- Part D claims, 2024
- 91%
- generic prescribing
- ≥48th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Deanne Bolhuis, A.R.N.P.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1184622425), first enumerated 07/11/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 219 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1184622425 · Obstetrics & Gynecology Nurse Practitioner
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1184622425
- ENUM-LEGACY 2005
- TAX-NARROW 2,871
- RX-LIGHT 219
- BOOK-THIN 35 in Iowa
- PHOTO-ENUM Nicole Gueli, ARNP · 2005
Deanne Bolhuis, A.R.N.P.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
219 ≥ 48th percentile 48% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Deanne Bolhuis, A.R.N.P.?
Quality data not reportedPrimary specialty
Obstetrics & Gynecology Nurse Practitioner
Medicare Part D claims
219 9% vs specialty avg
Specialty distribution in Iowa
How Obstetrics & Gynecology Nurse Practitioner compares to other specialties among Iowa providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Obstetrics & Gynecology Nurse Practitioner. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1184622425 |
|---|---|
| Specialty | Obstetrics & Gynecology Nurse Practitioner |
| Credentials | A.R.N.P. |
| Gender | Female |
| NPI Issued | 07/11/2005 |
Hospital and facility affiliations
Facilities where Deanne Bolhuis, A.R.N.P. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Iowa Physicians Clinic Medical Foundation
Waterloo, IA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Generic-heavy
Deanne Bolhuis, A.R.N.P. - brand share 9.0%
Obstetrics & Gynecology Nurse Practitioner average
9% brand-name claims vs 91% generic, on 219 2024 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
219
Total Claims
$11K
Total Drug Cost
90
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 378.467
- Total Day Supply
- 10,222
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $2K
- Generic Drug Cost
- $9K
- Antibiotic Claims
- 11
Patient Demographics
- Average Patient Age
- 67.0 years
- Avg HCC Risk Score
- 1.01
- Gender Split
- 100% female / 0% male
- Age Distribution
- <65: 20, 65-74: 42, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Deanne Bolhuis, A.R.N.P. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Estradiol
Estradiol
38 claims
- Progesterone
Progesterone
17 claims
- Clobetasol Propion…
Clobetasol Propionate
16 claims
- Valacyclovir 14
Valacyclovir
14 claims
- Betamethasone Vale… 13
Betamethasone Valerate
13 claims
- Norethindrone Acet… 13
Norethindrone Acetate
13 claims
| Drug | Claims |
|---|---|
| Estradiol | 38 |
| Progesterone Progesterone, Micronized | 17 |
| Clobetasol Propionate | 16 |
| Valacyclovir Valacyclovir Hcl | 14 |
| Betamethasone Valerate | 13 |
| Norethindrone Acetate | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Obstetrics & Gynecology Nurse Practitioner in IA →
All providers in Iowa →
Compare specialties →
Obstetrics & Gynecology Nurse Practitioner Overview
How Deanne Bolhuis, A.R.N.P. fits within the Obstetrics & Gynecology Nurse Practitioner landscape nationally.
2,871
Obstetrics & Gynecology Nurse Practitioner Providers in US
52
States with Obstetrics & Gynecology Nurse Practitioner
241
Avg Claims per Provider
Deanne Bolhuis, A.R.N.P.'s 219 claims are below the specialty average of 241.
Nationwide Obstetrics & Gynecology Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Bolhuis, both outside Iowa so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Obstetrics & Gynecology Nurse Practitioner Providers in Iowa
Other clinicians with the same primary specialty enrolled in Iowa, drawn from the same CMS NPPES roster as Bolhuis.
One of 35 Obstetrics & Gynecology Nurse Practitioner providers enrolled in Iowa, 5 are shown here.
Lorena Allen
ARNP
Mount Pleasant, IA
Abigail Bartolo-Costello
WHNP/MSN
Iowa City, IA
Jeanne Batcheller
ARNP
Sioux City, IA
Nancy Beavers
ARNP
Mason City, IA
Cynthia Bruins
ARNP
Indianola, IA
Compare Obstetrics & Gynecology Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Deanne Bolhuis, A.R.N.P.'s specialty? ▼
Deanne Bolhuis, A.R.N.P. specializes in Obstetrics & Gynecology Nurse Practitioner and practices in Waterloo, Iowa. Credentials: A.R.N.P..
How much does Deanne Bolhuis, A.R.N.P. prescribe under Medicare Part D? ▼
In 2024, Deanne Bolhuis, A.R.N.P. wrote 219 Medicare Part D claims totaling $11K in drug costs for 90 beneficiaries.
Where is Deanne Bolhuis, A.R.N.P. located? ▼
Deanne Bolhuis, A.R.N.P. is located at 432 KING DR, Waterloo, IA, 50702. Phone: (319) 234-5764.
What is Deanne Bolhuis, A.R.N.P.'s NPI number? ▼
Deanne Bolhuis, A.R.N.P.'s National Provider Identifier (NPI) is 1184622425, issued on 07/11/2005.
Does Deanne Bolhuis, A.R.N.P. prescribe more brand-name or generic drugs? ▼
Deanne Bolhuis, A.R.N.P.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $2K in brand drug costs.
How many Obstetrics & Gynecology Nurse Practitioner providers are there in the US? ▼
There are 2,871 Obstetrics & Gynecology Nurse Practitioner providers across 52 states in the US. The average Obstetrics & Gynecology Nurse Practitioner provider writes 241 Medicare Part D claims per year.
What drugs does Deanne Bolhuis, A.R.N.P. prescribe most often? ▼
Based on 2024 Medicare Part D data, Deanne Bolhuis, A.R.N.P.'s most frequently prescribed drugs include Estradiol, Progesterone, Clobetasol Propionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Deanne Bolhuis, A.R.N.P. accept Medicare? ▼
Deanne Bolhuis, A.R.N.P. appears in CMS Medicare data with 219 Part D claims and 90 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Deanne Bolhuis, A.R.N.P.'s credentials? ▼
Deanne Bolhuis, A.R.N.P.'s NPI is 1184622425 with credentials A.R.N.P.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.