2026 NPPES data Oncology Registered Nurse NPI 1235177817 NP
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MARIANNE TAWA, NP

Oncology Registered Nurse in BOSTON, Massachusetts. 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
418
Medicare Part D claims · 64 beneficiaries · Oncology Registered Nurse avg: 555
Industry payments
$905.45
3 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: MARIANNE TAWA, NP is a Oncology Registered Nurse ([object Object]) practicing in BOSTON, Massachusetts with a Medicare Part D prescribing footprint of 418 claims across 64 beneficiaries . Industry payments of $905.45 across 3 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: MARIANNE TAWA, NP filed 418 Medicare Part D claims in 2023 across BOSTON, Massachusetts. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

MARIANNE TAWA, NP at a glance

Quality data not reported

NPI registry status

Active

Issued 06/03/2006

NPI 1235177817

Primary specialty

Oncology Registered Nurse

Niche

857 US NPIs in this specialty

Medicare Part D claims

418 25% vs specialty avg

2023 prescription claims

Specialty avg: 555

Specialty distribution in Massachusetts

How Oncology Registered Nurse compares to other specialties among Massachusetts providers

Massachusetts providers

Oncology Registered Nurse share within Massachusetts

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Oncology 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).

MARIANNE TAWA, NP is a Oncology Registered Nurse provider practicing in BOSTON, Massachusetts, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: NP. NPI: 1235177817. 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.

MARIANNE TAWA, NP appears in the CMS NPPES registry as a Oncology Registered Nurse provider holding NP credentials at 44 BINNEY ST, BOSTON, MA, 02115, with a listed phone of (617) 632-6571. NPI 1235177817 was issued on 06/03/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what TAWA 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 418 prescription claims written by this provider, covering 64 Medicare beneficiaries and totaling roughly $443K in drug spend. 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.

Oncology Registered Nurse is a narrow specialty nationwide, with 857 enrolled providers across 50 states and an average of 555 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

44 BINNEY ST
BOSTON, MA 02115

Provider Details

NPI 1235177817
Specialty Oncology Registered Nurse
Credentials NP
Gender Female
NPI Issued 06/03/2006

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 MARIANNE TAWA, NP. Source: openpaymentsdata.cms.gov.

Total received

$905

Largest payer

Kyowa Kirin, 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.

License & disciplinary context — Massachusetts BORIM 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~38K Massachusetts medical licensees in 2023 — they are NOT specific to MARIANNE TAWA, NP. To verify MARIANNE TAWA, NP's current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases

BORIM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

418
Total Claims
$443K
Total Drug Cost
64
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
527
Total Day Supply
14,148
Generic Drug Cost
$367K
Antibiotic Claims
22

Patient Demographics

Average Patient Age
74.0 years
Avg HCC Risk Score
1.69
Gender Split
44% female / 56% 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
Triamcinolone Acetonide
55
Clobetasol Propionate
52
Betamethasone Diprop Augmented
Betamethasone/Propylene Glyc
47
Valacyclovir
Valacyclovir Hcl
35
Bexarotene
33
Prednisone
18
Leucovorin Calcium
17
Hydroxyzine Hcl
15
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
13
Levothyroxine Sodium
11

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

Oncology Registered Nurse Overview

How MARIANNE TAWA, NP fits within the Oncology Registered Nurse landscape nationally.

857
Oncology Registered Nurse Providers in US
50
States with Oncology Registered Nurse
555
Avg Claims per Provider

MARIANNE TAWA, NP's 418 claims are below the specialty average of 555.

Nearby Oncology Registered Nurse Providers in Massachusetts

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

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

Frequently Asked Questions

What is MARIANNE TAWA, NP's specialty?
MARIANNE TAWA, NP specializes in Oncology Registered Nurse and practices in BOSTON, Massachusetts. Credentials: NP.
How much does MARIANNE TAWA, NP prescribe under Medicare Part D?
In 2023, MARIANNE TAWA, NP wrote 418 Medicare Part D claims totaling $443K in drug costs for 64 beneficiaries.
Where is MARIANNE TAWA, NP located?
MARIANNE TAWA, NP is located at 44 BINNEY ST, BOSTON, MA, 02115. Phone: (617) 632-6571.
What is MARIANNE TAWA, NP's NPI number?
MARIANNE TAWA, NP's National Provider Identifier (NPI) is 1235177817, issued on 06/03/2006.
How many Oncology Registered Nurse providers are there in the US?
There are 857 Oncology Registered Nurse providers across 50 states in the US. The average Oncology Registered Nurse provider writes 555 Medicare Part D claims per year.
What drugs does MARIANNE TAWA, NP prescribe most often?
Based on 2023 Medicare Part D data, MARIANNE TAWA, NP's most frequently prescribed drugs include Triamcinolone Acetonide, Clobetasol Propionate, Betamethasone Diprop Augmented. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARIANNE TAWA, NP accept Medicare?
MARIANNE TAWA, NP appears in CMS Medicare data with 418 Part D claims and 64 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARIANNE TAWA, NP's credentials?
MARIANNE TAWA, NP's NPI is 1235177817 with credentials NP. 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