NPI registry status
Active
2026 NPPES data Infectious Disease Physician NPI 1518205103
Verify on CMS → Oana Majorant
Infectious Disease Physician in Medford, 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 8,292 in Infectious Disease Physician, 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
282
Medicare Part D claims · 69 beneficiaries · Infectious Disease Physician avg: 816
Generic prescribing
67%
generic claims · 33% 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
Oana Majorant filed 282 Medicare Part D claims in 2023 as a Infectious Disease Physician in Medford, Oregon, prescribing 67% generic.
- 282
- Part D claims, 2023
- 67%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Oana Majorant's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
282 49th percentile higher than 49% 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
✓
Board certification likely (heuristic, not verified)
Oana Majorant practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Oana Majorant?
Quality data not reportedPrimary specialty
Infectious Disease Physician
Medicare Part D claims
282 65% vs specialty avg
Specialty distribution in Oregon
How Infectious Disease Physician 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 Infectious Disease Physician. 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).
Oana Majorant appears in the CMS NPPES registry as a Infectious Disease Physician provider at 1698 E MCANDREWS RD STE 400, Medford, OR, 97504, with a listed phone of (541) 732-6070. NPI 1518205103 was issued on 01/16/2013.
Medicare Part D records for calendar year 2023 show 282 prescription claims written by this provider, covering 69 Medicare beneficiaries and totaling roughly $331K in drug spend, split 33% brand-name and 67% generic by claim count.
Infectious Disease Physician is a mid-sized specialty nationwide, with 8,292 enrolled providers across 54 states and an average of 816 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 | 1518205103 |
|---|---|
| Specialty | Infectious Disease Physician |
| Gender | Female |
| NPI Issued | 01/16/2013 |
Hospital and facility affiliations
Facilities where Oana Majorant 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.
Chi Health Clinic Specialty LLC
Kearney, NE
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 · Above average
Oana Majorant - brand share 33.0%
Infectious Disease Physician average
33% brand-name claims vs 67% generic, on 282 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.
282
Total Claims
$331K
Total Drug Cost
69
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 354
- Total Day Supply
- 9,005
- Brand vs Generic
- 33% brand / 67% generic
- Brand Drug Cost
- $320K
- Generic Drug Cost
- $11K
- Antibiotic Claims
- 149
Patient Demographics
- Average Patient Age
- 70.8 years
- Avg HCC Risk Score
- 2.39
- Gender Split
- 43% female / 57% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Oana Majorant prescribes most
Top Medicare Part D drugs by claim count, 2023
- Cephalexin
Cephalexin
38 claims
- Doxycycline Hyclate
Doxycycline Hyclate
33 claims
- Biktarvy
Biktarvy
24 claims
- Descovy
Descovy
23 claims
- Tivicay
Tivicay
23 claims
- Cefazolin Sodium 13
Cefazolin Sodium
13 claims
- Amoxicillin 12
Amoxicillin
12 claims
- Sulfamethoxazole-T… 12
Sulfamethoxazole-Trimethoprim
12 claims
| Drug | Claims |
|---|---|
| Cephalexin | 38 |
| Doxycycline Hyclate | 33 |
| Biktarvy Bictegrav/Emtricit/Tenofov Ala | 24 |
| Descovy Emtricitabine/Tenofov Alafenam | 23 |
| Tivicay Dolutegravir Sodium | 23 |
| Cefazolin Sodium | 13 |
| Amoxicillin | 12 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 12 |
| Vancomycin Hcl | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Infectious Disease Physician Overview
How Oana Majorant fits within the Infectious Disease Physician landscape nationally.
8,292
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
816
Avg Claims per Provider
Oana Majorant's 282 claims are below the specialty average of 816.
Nearby Infectious Disease Physician Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Majorant.
Dr. Nabil Al-Kourainy
MD
Portland, OR
Dr. Phil Alday
MD, PHD
Portland, OR
Dr. Diana Antoniskis
M.D.
Portland, OR
Dr. Marina Arbuck
M.D.
Corvallis, OR
Dr. Elizabeth Belanger
MD
Portland, OR
Compare Infectious Disease Physician 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 Infectious Disease Physician 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 Oana Majorant's specialty? ▼
Oana Majorant specializes in Infectious Disease Physician and practices in Medford, Oregon.
How much does Oana Majorant prescribe under Medicare Part D? ▼
In 2023, Oana Majorant wrote 282 Medicare Part D claims totaling $331K in drug costs for 69 beneficiaries.
Where is Oana Majorant located? ▼
Oana Majorant is located at 1698 E MCANDREWS RD STE 400, Medford, OR, 97504. Phone: (541) 732-6070.
What is Oana Majorant's NPI number? ▼
Oana Majorant's National Provider Identifier (NPI) is 1518205103, issued on 01/16/2013.
Does Oana Majorant prescribe more brand-name or generic drugs? ▼
Oana Majorant's prescribing is 33% brand-name and 67% generic drugs by claim count, with $320K in brand drug costs.
How many Infectious Disease Physician providers are there in the US? ▼
There are 8,292 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 816 Medicare Part D claims per year.
What drugs does Oana Majorant prescribe most often? ▼
Based on 2023 Medicare Part D data, Oana Majorant's most frequently prescribed drugs include Cephalexin, Doxycycline Hyclate, Biktarvy. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Oana Majorant accept Medicare? ▼
Oana Majorant appears in CMS Medicare data with 282 Part D claims and 69 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Oana Majorant's credentials? ▼
Oana Majorant's NPI is 1518205103. 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.