NPI registry status
Active
2026 NPPES data Student in an Organized Health Care Education/Training Program NPI 1346484854 M.D., M.C.R.
Verify on CMS → Maria Nelson, M.D., M.C.R.
Student in an Organized Health Care Education/Training Program in Portland, 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 351,014 in Student in an Organized Health Care Education/Training Program, 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
299
Medicare Part D claims · 229 beneficiaries · Student in an Organized Health Care Education/Training Program avg: 488
What the federal data shows
Maria Nelson, M.D., M.C.R. filed 299 Medicare Part D claims in 2024 as a Student in an Organized Health Care Education/Training Program in Portland, Oregon.
- 299
- Part D claims, 2024
- ≥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 Maria Nelson, M.D., M.C.R.
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1346484854), first enumerated 04/28/2009.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 299 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- 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 1346484854 · Student in an Organized Health Care Education/Training Program
NPI-10 · ENUM-MID · TAX-MEGA · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1346484854
- ENUM-MID 2009
- TAX-MEGA 351K Student in
- RX-LIGHT 299
- BOOK-LIGHT 4,343 in Oregon
- PHOTO-ENUM Kory Herrick · 2009
Maria Nelson, M.D., M.C.R.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
299 ≥ 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 Maria Nelson, M.D., M.C.R.?
Quality data not reportedPrimary specialty
Student in an Organized Health Care Education/Training Program
Medicare Part D claims
299 39% vs specialty avg
Specialty distribution in Oregon
How Student in an Organized Health Care Education/Training Program 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 Student in an Organized Health Care Education/Training Program. 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 | 1346484854 |
|---|---|
| Specialty | Student in an Organized Health Care Education/Training Program |
| Credentials | M.D., M.C.R. |
| Gender | Female |
| NPI Issued | 04/28/2009 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
299
Total Claims
$7K
Total Drug Cost
229
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 303.333
- Total Day Supply
- 3,169
- Generic Drug Cost
- $2K
- Opioid Claims
- 44 (14.7% rate)
- Antibiotic Claims
- 90
Patient Demographics
- Average Patient Age
- 70.2 years
- Avg HCC Risk Score
- 1.68
- Gender Split
- 60% female / 40% male
- Age Distribution
- <65: 44, 65-74: 100, 75-84: 57, 85+: 28
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Maria Nelson, M.D., M.C.R. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Cephalexin
Cephalexin
31 claims
- Prednisone
Prednisone
18 claims
- Oxycodone Hcl
Oxycodone Hcl
17 claims
- Sulfamethoxazole-T…
Sulfamethoxazole-Trimethoprim
15 claims
- Naproxen
Naproxen
14 claims
- Oxycodone-Acetamin…
Oxycodone-Acetaminophen
14 claims
- Doxycycline Hyclate 12
Doxycycline Hyclate
12 claims
- Ondansetron Odt 12
Ondansetron Odt
12 claims
| Drug | Claims |
|---|---|
| Cephalexin | 31 |
| Prednisone | 18 |
| Oxycodone Hcl | 17 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 15 |
| Naproxen | 14 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 14 |
| Doxycycline Hyclate | 12 |
| Ondansetron Odt Ondansetron | 12 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Student in an Organized Health Care Education/Training Program in OR →
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Student in an Organized Health Care Education/Training Program Overview
How Maria Nelson, M.D., M.C.R. fits within the Student in an Organized Health Care Education/Training Program landscape nationally.
351,014
Student in an Organized Health Care Education/Training Program Providers in US
55
States with Student in an Organized Health Care Education/Training Program
488
Avg Claims per Provider
Maria Nelson, M.D., M.C.R.'s 299 claims are below the specialty average of 488.
Nationwide Student in an Organized Health Care Education/Training Program peers with similar MIPS or enrollment year
Two federal-record peer sets for Nelson, both outside Oregon so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2009)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Student in an Organized Health Care Education/Training Program Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Nelson.
One of 4,343 Student in an Organized Health Care Education/Training Program providers enrolled in Oregon, 5 are shown here.
Frequently Asked Questions
What is Maria Nelson, M.D., M.C.R.'s specialty? ▼
Maria Nelson, M.D., M.C.R. specializes in Student in an Organized Health Care Education/Training Program and practices in Portland, Oregon. Credentials: M.D., M.C.R..
How much does Maria Nelson, M.D., M.C.R. prescribe under Medicare Part D? ▼
In 2024, Maria Nelson, M.D., M.C.R. wrote 299 Medicare Part D claims totaling $7K in drug costs for 229 beneficiaries.
Where is Maria Nelson, M.D., M.C.R. located? ▼
Maria Nelson, M.D., M.C.R. is located at 3181 SW SAM JACKSON PARK RD, Portland, OR, 97239. Phone: (503) 494-8211.
What is Maria Nelson, M.D., M.C.R.'s NPI number? ▼
Maria Nelson, M.D., M.C.R.'s National Provider Identifier (NPI) is 1346484854, issued on 04/28/2009.
Does Maria Nelson, M.D., M.C.R. prescribe opioids? ▼
Yes, Maria Nelson, M.D., M.C.R. had 44 opioid claims in 2024 with an opioid prescribing rate of 14.7%.
How many Student in an Organized Health Care Education/Training Program providers are there in the US? ▼
There are 351,014 Student in an Organized Health Care Education/Training Program providers across 55 states in the US. The average Student in an Organized Health Care Education/Training Program provider writes 488 Medicare Part D claims per year.
What drugs does Maria Nelson, M.D., M.C.R. prescribe most often? ▼
Based on 2024 Medicare Part D data, Maria Nelson, M.D., M.C.R.'s most frequently prescribed drugs include Cephalexin, Prednisone, Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Maria Nelson, M.D., M.C.R. accept Medicare? ▼
Maria Nelson, M.D., M.C.R. appears in CMS Medicare data with 299 Part D claims and 229 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Maria Nelson, M.D., M.C.R.'s credentials? ▼
Maria Nelson, M.D., M.C.R.'s NPI is 1346484854 with credentials M.D., M.C.R.. 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.