2026 NPPES data Registered Nurse NPI 1740736156 MSN
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TARRA BAKER, MSN

Registered Nurse in SALEM, Oregon. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
1K
Medicare Part D claims · 54 beneficiaries · Registered Nurse avg: 1K
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

TARRA BAKER, MSN filed 1,037 Medicare Part D claims in 2023 as a Registered Nurse in SALEM, Oregon, prescribing 95% generic.

1K
Part D claims, 2023
95%
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.

TARRA BAKER, MSN's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

1,037 Top 24% higher than 76% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). This entry sits in this band. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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 TARRA BAKER, MSN?

Quality data not reported

NPI registry status

Active

Issued 08/27/2016

NPI 1740736156

Primary specialty

Registered Nurse

High-volume

175,652 US NPIs in this specialty

Medicare Part D claims

1,037 4% vs specialty avg

2023 prescription claims

Specialty avg: 1,000

Specialty distribution in Oregon

How Registered Nurse compares to other specialties among Oregon providers

Oregon providers

Registered Nurse share within Oregon

1. Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Registered Nurse share within Oregon

Specialty board-certification context

Estimated specialty board-certified rate — Registered Nurse (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Registered Nurse ABMS/AOA estimate

Est. board-certified rate (Registered Nurse) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Registered Nurse) — ABMS / AOA estimate

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).

TARRA BAKER, MSN is a Registered Nurse provider practicing in SALEM, Oregon, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MSN. NPI: 1740736156. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

TARRA BAKER, MSN appears in the CMS NPPES registry as a Registered Nurse provider holding MSN credentials at 1249 FAIRVIEW AVE SE, SALEM, OR, 97302, with a listed phone of (971) 239-1146. NPI 1740736156 was issued on 08/27/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BAKER most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,037 prescription claims written by this provider, covering 54 Medicare beneficiaries and totaling roughly $49K in drug spend, split 5% brand-name and 95% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Registered Nurse is a high-volume specialty nationwide, with 175,652 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

1249 FAIRVIEW AVE SE
SALEM, OR 97302

Provider Details

NPI 1740736156
Specialty Registered Nurse
Credentials MSN
Gender Female
NPI Issued 08/27/2016

Brand vs generic prescribing mix · Generic-heavy

TARRA BAKER, MSN — brand share 5.0%
Specialty average (est.)

5% brand-name claims vs 95% generic, on 1,037 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.

1,037
Total Claims
$49K
Total Drug Cost
54
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,424
Total Day Supply
41,899
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$25K
Generic Drug Cost
$25K

Patient Demographics

Average Patient Age
70.4 years
Avg HCC Risk Score
1.07
Gender Split
80% female / 20% 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
Lamotrigine
73
Alprazolam
59
Amitriptyline Hcl
53
Aripiprazole
53
Clonazepam
42
Trazodone Hcl
41
Fluvoxamine Maleate
40
Bupropion Xl
Bupropion Hcl
37
Mirtazapine
36
Olanzapine
35

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Registered Nurse Overview

How TARRA BAKER, MSN fits within the Registered Nurse landscape nationally.

175,652
Registered Nurse Providers in US
56
States with Registered Nurse
1,000
Avg Claims per Provider

TARRA BAKER, MSN's 1,037 claims are above the specialty average of 1,000.

Nearby Registered Nurse Providers in Oregon

Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as BAKER.

Compare Registered Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is TARRA BAKER, MSN's specialty?
TARRA BAKER, MSN specializes in Registered Nurse and practices in SALEM, Oregon. Credentials: MSN.
How much does TARRA BAKER, MSN prescribe under Medicare Part D?
In 2023, TARRA BAKER, MSN wrote 1,037 Medicare Part D claims totaling $49K in drug costs for 54 beneficiaries.
Where is TARRA BAKER, MSN located?
TARRA BAKER, MSN is located at 1249 FAIRVIEW AVE SE, SALEM, OR, 97302. Phone: (971) 239-1146.
What is TARRA BAKER, MSN's NPI number?
TARRA BAKER, MSN's National Provider Identifier (NPI) is 1740736156, issued on 08/27/2016.
Does TARRA BAKER, MSN prescribe more brand-name or generic drugs?
TARRA BAKER, MSN's prescribing is 5% brand-name and 95% generic drugs by claim count, with $25K in brand drug costs.
How many Registered Nurse providers are there in the US?
There are 175,652 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 TARRA BAKER, MSN prescribe most often?
Based on 2023 Medicare Part D data, TARRA BAKER, MSN's most frequently prescribed drugs include Lamotrigine, Alprazolam, Amitriptyline Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TARRA BAKER, MSN accept Medicare?
TARRA BAKER, MSN appears in CMS Medicare data with 1,037 Part D claims and 54 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TARRA BAKER, MSN's credentials?
TARRA BAKER, MSN's NPI is 1740736156 with credentials MSN. 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

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