NPI registry status
Active
2026 NPPES data Registered Nurse NPI 1245715028 NP-C
Verify on CMS → Annika Kariniemi, NP-C
Registered Nurse in Phoenix, Arizona.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 177,204 in Registered Nurse, 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
77
Medicare Part D claims · 43 beneficiaries · Registered Nurse avg: 1K
Industry payments
$322.28
13 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Annika Kariniemi, NP-C filed 77 Medicare Part D claims in 2023 as a Registered Nurse in Phoenix, Arizona.
- 77
- Part D claims, 2023
- $322.28
- industry payments (Sunshine Act)
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.
Annika Kariniemi, NP-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
77 0th percentile higher than 0% 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 Annika Kariniemi, NP-C?
Quality data not reportedPrimary specialty
Registered Nurse
Medicare Part D claims
77 92% vs specialty avg
Specialty distribution in Arizona
How Registered Nurse compares to other specialties among Arizona 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 Registered Nurse. 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).
Annika Kariniemi, NP-C appears in the CMS NPPES registry as a Registered Nurse provider holding NP-C credentials at 3827 N 32ND ST, Phoenix, AZ, 85018, with a listed phone of (928) 985-1810. NPI 1245715028 was issued on 09/27/2018.
Medicare Part D records for calendar year 2023 show 77 prescription claims written by this provider, covering 43 Medicare beneficiaries and totaling roughly $44K in drug spend.
Registered Nurse is a high-volume specialty nationwide, with 177,204 enrolled providers across 56 states and an average of 1,000 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 | 1245715028 |
|---|---|
| Specialty | Registered Nurse |
| Credentials | NP-C |
| Gender | Female |
| NPI Issued | 09/27/2018 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Annika Kariniemi, NP-C. Source: openpaymentsdata.cms.gov.
Total received
$322
Largest payer
Paratek Pharmaceuticals, Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
77
Total Claims
$44K
Total Drug Cost
43
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 77
- Total Day Supply
- 847
- Generic Drug Cost
- $1K
- Antibiotic Claims
- 53
Patient Demographics
- Average Patient Age
- 73.7 years
- Avg HCC Risk Score
- 3.01
- Gender Split
- 47% female / 53% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Doxycycline Monohydrate | 35 |
| Gentamicin Sulfate | 20 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Registered Nurse Overview
How Annika Kariniemi, NP-C fits within the Registered Nurse landscape nationally.
177,204
Registered Nurse Providers in US
56
States with Registered Nurse
1,000
Avg Claims per Provider
Annika Kariniemi, NP-C's 77 claims are below the specialty average of 1,000.
Nearby Registered Nurse Providers in Arizona
Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Kariniemi.
Dr. Audlandra Aaron-Magee
RN
Tuba City, AZ
Dr. Monique Gia Abad
RN
Tuba City, AZ
Cassandra Abarca
Scottsdale, AZ
Dr. Eric Abat
RN
Tuba City, AZ
Dr. Firoozeh Abbasi
RN
Peoria, AZ
Compare Registered Nurse 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 Arizona medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Registered Nurse 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
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Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Arizona
Frequently Asked Questions
What is Annika Kariniemi, NP-C's specialty? ▼
Annika Kariniemi, NP-C specializes in Registered Nurse and practices in Phoenix, Arizona. Credentials: NP-C.
How much does Annika Kariniemi, NP-C prescribe under Medicare Part D? ▼
In 2023, Annika Kariniemi, NP-C wrote 77 Medicare Part D claims totaling $44K in drug costs for 43 beneficiaries.
Where is Annika Kariniemi, NP-C located? ▼
Annika Kariniemi, NP-C is located at 3827 N 32ND ST, Phoenix, AZ, 85018. Phone: (928) 985-1810.
What is Annika Kariniemi, NP-C's NPI number? ▼
Annika Kariniemi, NP-C's National Provider Identifier (NPI) is 1245715028, issued on 09/27/2018.
How many Registered Nurse providers are there in the US? ▼
There are 177,204 Registered Nurse providers across 56 states in the US. The average Registered Nurse provider writes 1,000 Medicare Part D claims per year.
What drugs does Annika Kariniemi, NP-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Annika Kariniemi, NP-C's most frequently prescribed drugs include Doxycycline Monohydrate, Gentamicin Sulfate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Annika Kariniemi, NP-C accept Medicare? ▼
Annika Kariniemi, NP-C appears in CMS Medicare data with 77 Part D claims and 43 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Annika Kariniemi, NP-C's credentials? ▼
Annika Kariniemi, NP-C's NPI is 1245715028 with credentials NP-C. 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.