NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1215236278 APNP
Verify on CMS → Ann Dettlaff, APNP
Nurse Practitioner in Appleton, Wisconsin.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 87,700 in 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
5K
Medicare Part D claims · 286 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Ann Dettlaff, APNP filed 4,928 Medicare Part D claims in 2023 as a Nurse Practitioner in Appleton, Wisconsin, prescribing 87% generic.
- 5K
- Part D claims, 2023
- 87%
- generic prescribing
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.
Ann Dettlaff, APNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
4,928 Top 6% higher than 94% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about Ann Dettlaff, APNP?
Quality data not reportedPrimary specialty
Nurse Practitioner
Medicare Part D claims
4,928 355% vs specialty avg
Specialty distribution in Wisconsin
How Nurse Practitioner compares to other specialties among Wisconsin 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 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).
Ann Dettlaff, APNP appears in the CMS NPPES registry as a Nurse Practitioner provider holding APNP credentials at 720 W. ASSOCIATION DR., Appleton, WI, 54914, with a listed phone of (920) 731-4354. NPI 1215236278 was issued on 03/16/2011.
Medicare Part D records for calendar year 2023 show 4,928 prescription claims written by this provider, covering 286 Medicare beneficiaries and totaling roughly $421K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 1.1%.
Nurse Practitioner is a high-volume specialty nationwide, with 87,700 enrolled providers across 56 states and an average of 1,084 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1215236278 |
|---|---|
| Specialty | Nurse Practitioner |
| Credentials | APNP |
| Gender | Female |
| NPI Issued | 03/16/2011 |
Brand vs generic prescribing mix · Typical
Ann Dettlaff, APNP - brand share 13.0%
Nurse Practitioner average
13% brand-name claims vs 87% generic, on 4,928 2023 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 2023.
4,928
Total Claims
$421K
Total Drug Cost
286
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 10,471
- Total Day Supply
- 308,438
- Brand vs Generic
- 13% brand / 87% generic
- Brand Drug Cost
- $341K
- Generic Drug Cost
- $77K
- Opioid Claims
- 54 (1.1% rate)
- Antibiotic Claims
- 32
Patient Demographics
- Average Patient Age
- 72.0 years
- Avg HCC Risk Score
- 1.33
- Gender Split
- 74% female / 26% male
- Age Distribution
- <65: 39, 65-74: 137, 75-84: 76, 85+: 34
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ann Dettlaff, APNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
324 claims
- Losartan Potassium
Losartan Potassium
189 claims
- Amlodipine Besylate
Amlodipine Besylate
184 claims
- Levothyroxine Sodium
Levothyroxine Sodium
161 claims
- Lisinopril
Lisinopril
157 claims
- Omeprazole
Omeprazole
153 claims
- Furosemide 125
Furosemide
125 claims
- Metformin Hcl Er 117
Metformin Hcl Er
117 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 324 |
| Losartan Potassium | 189 |
| Amlodipine Besylate | 184 |
| Levothyroxine Sodium | 161 |
| Lisinopril | 157 |
| Omeprazole | 153 |
| Furosemide | 125 |
| Metformin Hcl Er Metformin Hcl | 117 |
| Rosuvastatin Calcium | 114 |
| Pantoprazole Sodium | 110 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nurse Practitioner Overview
How Ann Dettlaff, APNP fits within the Nurse Practitioner landscape nationally.
87,700
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider
Ann Dettlaff, APNP's 4,928 claims are above the specialty average of 1,084.
Nearby Nurse Practitioner Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Dettlaff.
Dr. Caroline Aaberg
APNP
Madison, WI
Dr. Joyce Abbott
APNP
Oshkosh, WI
Dr. Jade Abts
NP
Green Bay, WI
Dr. Christine Ackerman
NP
Menomonee Falls, WI
Dr. Carol Adamczyk
MSN
Wauwatosa, WI
Compare Nurse Practitioner nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Wisconsin medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Ann Dettlaff, APNP's specialty? ▼
Ann Dettlaff, APNP specializes in Nurse Practitioner and practices in Appleton, Wisconsin. Credentials: APNP.
How much does Ann Dettlaff, APNP prescribe under Medicare Part D? ▼
In 2023, Ann Dettlaff, APNP wrote 4,928 Medicare Part D claims totaling $421K in drug costs for 286 beneficiaries.
Where is Ann Dettlaff, APNP located? ▼
Ann Dettlaff, APNP is located at 720 W. ASSOCIATION DR., Appleton, WI, 54914. Phone: (920) 731-4354.
What is Ann Dettlaff, APNP's NPI number? ▼
Ann Dettlaff, APNP's National Provider Identifier (NPI) is 1215236278, issued on 03/16/2011.
Does Ann Dettlaff, APNP prescribe more brand-name or generic drugs? ▼
Ann Dettlaff, APNP's prescribing is 13% brand-name and 87% generic drugs by claim count, with $341K in brand drug costs.
Does Ann Dettlaff, APNP prescribe opioids? ▼
Yes, Ann Dettlaff, APNP had 54 opioid claims in 2023 with an opioid prescribing rate of 1.1%.
How many Nurse Practitioner providers are there in the US? ▼
There are 87,700 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,084 Medicare Part D claims per year.
What drugs does Ann Dettlaff, APNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Ann Dettlaff, APNP's most frequently prescribed drugs include Atorvastatin Calcium, Losartan Potassium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ann Dettlaff, APNP accept Medicare? ▼
Ann Dettlaff, APNP appears in CMS Medicare data with 4,928 Part D claims and 286 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ann Dettlaff, APNP's credentials? ▼
Ann Dettlaff, APNP's NPI is 1215236278 with credentials APNP. 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 (2023). 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 April 2026 (NPPES) / 2023 (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
Compiled from official public sources by the PlainDoctor editorial team.
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 May 2026.