2026 NPPES data Adult Health Nurse Practitioner NPI 1710534169 NP
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CATHERINE SALK, NP

Adult Health Nurse Practitioner in LEWISTON, Maine. 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
2K
Medicare Part D claims · 480 beneficiaries · Adult Health Nurse Practitioner avg: 1K
MIPS score
77.0457/100
▼ 6 pts below national avg 83.1 · [object Object]
Industry payments
$130.51
6 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

CATHERINE SALK, NP reported a CMS MIPS final score of 77.0457/100 — below the 83.1 national average — and filed 1,901 Medicare Part D claims in 2023.

77.0457/100
MIPS score · -6 vs avg
2K
Part D claims, 2023
$130.51
industry payments (Sunshine Act)

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.

CATHERINE SALK, NP's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

77 24th percentile higher than 24% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

What does the federal data show about CATHERINE SALK, NP?

Below national average

NPI registry status

Active

Issued 08/21/2019

NPI 1710534169

Primary specialty

Adult Health Nurse Practitioner

Mid-sized

29,492 US NPIs in this specialty

Medicare Part D claims

1,901 58% vs specialty avg

2023 prescription claims

Specialty avg: 1,201

MIPS final score

77.0457/100 6.054299999999998% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Maine

How Adult Health Nurse Practitioner compares to other specialties among Maine providers

Maine providers

Adult Health Nurse Practitioner share within Maine

1. Adult Health Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Adult Health Nurse Practitioner share within Maine

Medicare quality performance — MIPS

CATHERINE SALK, NP's 2023 MIPS final score plotted against the Adult Health Nurse Practitioner national average

Below national average
MIPS Final Score
77.0457/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Adult Health Nurse Practitioner) — 77.0457/100 vs national avg 83.1

0%100%National avg83%77%
MIPS final score (Adult Health Nurse Practitioner) — 77.0457/100 vs national avg 83.1

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).

CATHERINE SALK, NP appears in the CMS NPPES registry as a Adult Health Nurse Practitioner provider holding NP credentials at 287 MAIN ST STE 404, LEWISTON, ME, 04240, with a listed phone of (207) 795-2171. NPI 1710534169 was issued on 08/21/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SALK 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 1,901 prescription claims written by this provider, covering 480 Medicare beneficiaries and totaling roughly $224K 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 77.0457/100 for the 2023 performance year (Quality 49.174), compared with the national average of 83.1.

Adult Health Nurse Practitioner is a mid-sized specialty nationwide, with 29,492 enrolled providers across 55 states and an average of 1,201 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

287 MAIN ST STE 404
LEWISTON, ME 04240

Provider Details

NPI 1710534169
Specialty Adult Health Nurse Practitioner
Credentials NP
Gender Female
NPI Issued 08/21/2019

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

77.0457
Final Score
Avg: 83.1
49.174
Quality
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where CATHERINE SALK, NP 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.

CENTRAL MAINE MEDICAL CENTER
★★★★☆ 4/5
LEWISTON, ME
Acute Care Hospitals
CMS CCN: 200024

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 CATHERINE SALK, NP. Source: openpaymentsdata.cms.gov.

Total received

$131

Largest payer

Sumitomo Pharma America, 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.

Medicare Part D Prescribing Data

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

1,901
Total Claims
$224K
Total Drug Cost
480
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,068
Total Day Supply
85,663
Generic Drug Cost
$58K
Antibiotic Claims
376

Patient Demographics

Average Patient Age
73.8 years
Avg HCC Risk Score
1.44
Gender Split
34% female / 66% male
Age Distribution
<65: 59, 65-74: 189, 75-84: 177, 85+: 55

Top Prescribed Drugs (Medicare Part D)

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

What CATHERINE SALK, NP 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
Tamsulosin Hcl
418
Finasteride
262
Myrbetriq
Mirabegron
255
Oxybutynin Chloride Er
Oxybutynin Chloride
169
Tolterodine Tartrate Er
Tolterodine Tartrate
128
Cephalexin
122
Cefdinir
64
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
63
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
51
Solifenacin Succinate
50

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

Adult Health Nurse Practitioner Overview

How CATHERINE SALK, NP fits within the Adult Health Nurse Practitioner landscape nationally.

29,492
Adult Health Nurse Practitioner Providers in US
55
States with Adult Health Nurse Practitioner
1,201
Avg Claims per Provider

CATHERINE SALK, NP's 1,901 claims are above the specialty average of 1,201.

Nearby Adult Health Nurse Practitioner Providers in Maine

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

Compare Adult Health Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is CATHERINE SALK, NP's specialty?
CATHERINE SALK, NP specializes in Adult Health Nurse Practitioner and practices in LEWISTON, Maine. Credentials: NP.
How much does CATHERINE SALK, NP prescribe under Medicare Part D?
In 2023, CATHERINE SALK, NP wrote 1,901 Medicare Part D claims totaling $224K in drug costs for 480 beneficiaries.
What is CATHERINE SALK, NP's Medicare quality score?
CATHERINE SALK, NP has a CMS MIPS Final Score of 77.0457/100 (Quality: 49.174). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is CATHERINE SALK, NP located?
CATHERINE SALK, NP is located at 287 MAIN ST STE 404, LEWISTON, ME, 04240. Phone: (207) 795-2171.
What is CATHERINE SALK, NP's NPI number?
CATHERINE SALK, NP's National Provider Identifier (NPI) is 1710534169, issued on 08/21/2019.
How many Adult Health Nurse Practitioner providers are there in the US?
There are 29,492 Adult Health Nurse Practitioner providers across 55 states in the US. The average Adult Health Nurse Practitioner provider writes 1,201 Medicare Part D claims per year.
What drugs does CATHERINE SALK, NP prescribe most often?
Based on 2023 Medicare Part D data, CATHERINE SALK, NP's most frequently prescribed drugs include Tamsulosin Hcl, Finasteride, Myrbetriq. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CATHERINE SALK, NP accept Medicare?
CATHERINE SALK, NP appears in CMS Medicare data with 1,901 Part D claims and 480 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CATHERINE SALK, NP's credentials?
CATHERINE SALK, NP's NPI is 1710534169 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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