NPI registry status
Active
2026 NPPES data Neonatal Nurse Practitioner NPI 1205183415 CRNP
Verify on CMS → Grethe Mortenson, CRNP
Neonatal Nurse Practitioner in Klamath Falls, Oregon.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,956 in Neonatal 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
27
Medicare Part D claims · 22 beneficiaries · Neonatal Nurse Practitioner avg: 440
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Grethe Mortenson, CRNP filed 27 Medicare Part D claims in 2023 as a Neonatal Nurse Practitioner in Klamath Falls, Oregon.
- 27
- Part D claims, 2023
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.
Grethe Mortenson, CRNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
27 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 Grethe Mortenson, CRNP?
Quality data not reportedPrimary specialty
Neonatal Nurse Practitioner
Medicare Part D claims
27 94% vs specialty avg
Specialty distribution in Oregon
How Neonatal Nurse Practitioner compares to other specialties among Oregon 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 Neonatal 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).
Grethe Mortenson, CRNP appears in the CMS NPPES registry as a Neonatal Nurse Practitioner provider holding CRNP credentials at 2074 S 6TH ST, Klamath Falls, OR, 97601, with a listed phone of (541) 841-8110. NPI 1205183415 was issued on 08/07/2012.
Medicare Part D records for calendar year 2023 show 27 prescription claims written by this provider, covering 22 Medicare beneficiaries and totaling roughly $1K in drug spend.
Neonatal Nurse Practitioner is a narrow specialty nationwide, with 3,956 enrolled providers across 51 states and an average of 440 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 | 1205183415 |
|---|---|
| Specialty | Neonatal Nurse Practitioner |
| Credentials | CRNP |
| Gender | Female |
| NPI Issued | 08/07/2012 |
Hospital and facility affiliations
Facilities where Grethe Mortenson, CRNP 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.
Openloop Healthcare Partners PC
Bozeman, MT
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
27
Total Claims
$1K
Total Drug Cost
22
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 35
- Total Day Supply
- 589
- Generic Drug Cost
- $194
Patient Demographics
- Average Patient Age
- 66.1 years
- Avg HCC Risk Score
- 0.65
Neonatal Nurse Practitioner Overview
How Grethe Mortenson, CRNP fits within the Neonatal Nurse Practitioner landscape nationally.
3,956
Neonatal Nurse Practitioner Providers in US
51
States with Neonatal Nurse Practitioner
440
Avg Claims per Provider
Grethe Mortenson, CRNP's 27 claims are below the specialty average of 440.
Nearby Neonatal Nurse Practitioner Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Mortenson.
Dr. Sandra Banta Wright
NNP
Portland, OR
Dr. Susan Bell
DNP, NNP
Medford, OR
Dr. Ekaterina Bulaevskaya
NNP
Portland, OR
Dr. Christopher Cary
NNP-BC
Portland, OR
Dr. Chelsea Cieslak
DNP, NNP-BC
Portland, OR
Compare Neonatal 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 Oregon medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Neonatal 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.
Healthcare Guides
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How to Find a Doctor
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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 Oregon
Frequently Asked Questions
What is Grethe Mortenson, CRNP's specialty? ▼
Grethe Mortenson, CRNP specializes in Neonatal Nurse Practitioner and practices in Klamath Falls, Oregon. Credentials: CRNP.
How much does Grethe Mortenson, CRNP prescribe under Medicare Part D? ▼
In 2023, Grethe Mortenson, CRNP wrote 27 Medicare Part D claims totaling $1K in drug costs for 22 beneficiaries.
Where is Grethe Mortenson, CRNP located? ▼
Grethe Mortenson, CRNP is located at 2074 S 6TH ST, Klamath Falls, OR, 97601. Phone: (541) 841-8110.
What is Grethe Mortenson, CRNP's NPI number? ▼
Grethe Mortenson, CRNP's National Provider Identifier (NPI) is 1205183415, issued on 08/07/2012.
How many Neonatal Nurse Practitioner providers are there in the US? ▼
There are 3,956 Neonatal Nurse Practitioner providers across 51 states in the US. The average Neonatal Nurse Practitioner provider writes 440 Medicare Part D claims per year.
Does Grethe Mortenson, CRNP accept Medicare? ▼
Grethe Mortenson, CRNP appears in CMS Medicare data with 27 Part D claims and 22 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Grethe Mortenson, CRNP's credentials? ▼
Grethe Mortenson, CRNP's NPI is 1205183415 with credentials CRNP. 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.