2026 NPPES data Registered Nurse NPI 1598327603 NP-C
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SARAH GAMACHE, NP-C

Registered Nurse in WARWICK, Rhode Island. 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
5K
Medicare Part D claims · 269 beneficiaries · Registered Nurse avg: 1K
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

SARAH GAMACHE, NP-C filed 4,772 Medicare Part D claims in 2023 as a Registered Nurse in WARWICK, Rhode Island, prescribing 84% generic.

5K
Part D claims, 2023
84%
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.

SARAH GAMACHE, NP-C's Medicare Part D volume vs every U.S. prescriber

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

4,772 Top 7% higher than 93% 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%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 SARAH GAMACHE, NP-C?

Quality data not reported

NPI registry status

Active

Issued 06/28/2019

NPI 1598327603

Primary specialty

Registered Nurse

High-volume

175,652 US NPIs in this specialty

Medicare Part D claims

4,772 377% vs specialty avg

2023 prescription claims

Specialty avg: 1,000

Specialty distribution in Rhode Island

How Registered Nurse compares to other specialties among Rhode Island providers

Rhode Island providers

Registered Nurse share within Rhode Island

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

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).

SARAH GAMACHE, NP-C appears in the CMS NPPES registry as a Registered Nurse provider holding NP-C credentials at 475 KILVERT ST, WARWICK, RI, 02886, with a listed phone of (401) 785-7753. NPI 1598327603 was issued on 06/28/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GAMACHE 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 4,772 prescription claims written by this provider, covering 269 Medicare beneficiaries and totaling roughly $289K in drug spend, split 16% brand-name and 84% generic by claim count, with an opioid prescribing rate of 3.8%. 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

475 KILVERT ST
WARWICK, RI 02886

Provider Details

NPI 1598327603
Specialty Registered Nurse
Credentials NP-C
Gender Female
NPI Issued 06/28/2019

Brand vs generic prescribing mix · Typical

SARAH GAMACHE, NP-C — brand share 16.0%
Specialty average (est.)

16% brand-name claims vs 84% generic, on 4,772 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.

4,772
Total Claims
$289K
Total Drug Cost
269
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,781
Total Day Supply
115,733
Brand vs Generic
16% brand / 84% generic
Brand Drug Cost
$172K
Generic Drug Cost
$115K
Opioid Claims
180 (3.8% rate)
Antibiotic Claims
110

Patient Demographics

Average Patient Age
80.5 years
Avg HCC Risk Score
2.45
Gender Split
67% female / 33% male
Age Distribution
<65: 20, 65-74: 59, 75-84: 83, 85+: 107

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What SARAH GAMACHE, NP-C prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Trazodone Hcl
222
Furosemide
205
Atorvastatin Calcium
196
Sertraline Hcl
184
Gabapentin
169
Mirtazapine
164
Levothyroxine Sodium
137
Eliquis
Apixaban
134
Bumetanide
129
Potassium Chloride
91

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

Registered Nurse Overview

How SARAH GAMACHE, NP-C 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

SARAH GAMACHE, NP-C's 4,772 claims are above the specialty average of 1,000.

Nearby Registered Nurse Providers in Rhode Island

Other clinicians with the same primary specialty enrolled in Rhode Island, drawn from the same CMS NPPES roster as GAMACHE.

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

Frequently Asked Questions

What is SARAH GAMACHE, NP-C's specialty?
SARAH GAMACHE, NP-C specializes in Registered Nurse and practices in WARWICK, Rhode Island. Credentials: NP-C.
How much does SARAH GAMACHE, NP-C prescribe under Medicare Part D?
In 2023, SARAH GAMACHE, NP-C wrote 4,772 Medicare Part D claims totaling $289K in drug costs for 269 beneficiaries.
Where is SARAH GAMACHE, NP-C located?
SARAH GAMACHE, NP-C is located at 475 KILVERT ST, WARWICK, RI, 02886. Phone: (401) 785-7753.
What is SARAH GAMACHE, NP-C's NPI number?
SARAH GAMACHE, NP-C's National Provider Identifier (NPI) is 1598327603, issued on 06/28/2019.
Does SARAH GAMACHE, NP-C prescribe more brand-name or generic drugs?
SARAH GAMACHE, NP-C's prescribing is 16% brand-name and 84% generic drugs by claim count, with $172K in brand drug costs.
Does SARAH GAMACHE, NP-C prescribe opioids?
Yes, SARAH GAMACHE, NP-C had 180 opioid claims in 2023 with an opioid prescribing rate of 3.8%.
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 SARAH GAMACHE, NP-C prescribe most often?
Based on 2023 Medicare Part D data, SARAH GAMACHE, NP-C's most frequently prescribed drugs include Trazodone Hcl, Furosemide, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SARAH GAMACHE, NP-C accept Medicare?
SARAH GAMACHE, NP-C appears in CMS Medicare data with 4,772 Part D claims and 269 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SARAH GAMACHE, NP-C's credentials?
SARAH GAMACHE, NP-C's NPI is 1598327603 with credentials NP-C. 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