2026 NPPES data Family Nurse Practitioner NPI 1407408032 NP-C
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MAKSIM MERENKOV, NP-C

Family Nurse Practitioner in WESTFIELD, 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
3K
Medicare Part D claims · 578 beneficiaries · Family Nurse Practitioner avg: 1K
Industry payments
$1.4K
59 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MAKSIM MERENKOV, NP-C filed 2,588 Medicare Part D claims in 2023 as a Family Nurse Practitioner in WESTFIELD, Massachusetts.

3K
Part D claims, 2023
$1.4K
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.

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

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

2,588 Top 13% higher than 87% 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 MAKSIM MERENKOV, NP-C?

Quality data not reported

NPI registry status

Active

Issued 07/13/2019

NPI 1407408032

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

2,588 112% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

Specialty distribution in Massachusetts

How Family Nurse Practitioner compares to other specialties among Massachusetts providers

Massachusetts providers

Family Nurse Practitioner share within Massachusetts

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Family Nurse Practitioner) — 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).

MAKSIM MERENKOV, NP-C appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding NP-C credentials at 80 WILLIAM ST, WESTFIELD, MA, 01085, with a listed phone of (413) 231-6198. NPI 1407408032 was issued on 07/13/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MERENKOV 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 2,588 prescription claims written by this provider, covering 578 Medicare beneficiaries and totaling roughly $629K 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.

Family Nurse Practitioner is a high-volume specialty nationwide, with 209,817 enrolled providers across 56 states and an average of 1,222 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

80 WILLIAM ST
WESTFIELD, MA 01085

Provider Details

NPI 1407408032
Specialty Family Nurse Practitioner
Credentials NP-C
Gender Male
NPI Issued 07/13/2019

Hospital and facility affiliations

Facilities where MAKSIM MERENKOV, NP-C 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.

CARDIAC ARRHYTHMIA INSTITUTE PA
PORT CHARLOTTE, FL

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 MAKSIM MERENKOV, NP-C. Source: openpaymentsdata.cms.gov.

Total received

$1.4K

Largest payer

Novartis Pharmaceuticals Corporation

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 MAKSIM MERENKOV, NP-C. To verify MAKSIM MERENKOV, NP-C'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.

2,588
Total Claims
$629K
Total Drug Cost
578
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,532
Total Day Supply
194,428
Generic Drug Cost
$62K

Patient Demographics

Average Patient Age
74.5 years
Avg HCC Risk Score
1.59
Gender Split
42% female / 58% male
Age Distribution
<65: 49, 65-74: 241, 75-84: 220, 85+: 68

Top Prescribed Drugs (Medicare Part D)

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

What MAKSIM MERENKOV, 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
Atorvastatin Calcium
293
Metoprolol Succinate
206
Eliquis
Apixaban
198
Furosemide
133
Metoprolol Tartrate
129
Carvedilol
120
Rosuvastatin Calcium
113
Amlodipine Besylate
106
Lisinopril
102
Ezetimibe
96

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

Family Nurse Practitioner Overview

How MAKSIM MERENKOV, NP-C fits within the Family Nurse Practitioner landscape nationally.

209,817
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider

MAKSIM MERENKOV, NP-C's 2,588 claims are above the specialty average of 1,222.

Nearby Family Nurse Practitioner Providers in Massachusetts

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

Compare Family Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is MAKSIM MERENKOV, NP-C's specialty?
MAKSIM MERENKOV, NP-C specializes in Family Nurse Practitioner and practices in WESTFIELD, Massachusetts. Credentials: NP-C.
How much does MAKSIM MERENKOV, NP-C prescribe under Medicare Part D?
In 2023, MAKSIM MERENKOV, NP-C wrote 2,588 Medicare Part D claims totaling $629K in drug costs for 578 beneficiaries.
Where is MAKSIM MERENKOV, NP-C located?
MAKSIM MERENKOV, NP-C is located at 80 WILLIAM ST, WESTFIELD, MA, 01085. Phone: (413) 231-6198.
What is MAKSIM MERENKOV, NP-C's NPI number?
MAKSIM MERENKOV, NP-C's National Provider Identifier (NPI) is 1407408032, issued on 07/13/2019.
How many Family Nurse Practitioner providers are there in the US?
There are 209,817 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does MAKSIM MERENKOV, NP-C prescribe most often?
Based on 2023 Medicare Part D data, MAKSIM MERENKOV, NP-C's most frequently prescribed drugs include Atorvastatin Calcium, Metoprolol Succinate, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MAKSIM MERENKOV, NP-C accept Medicare?
MAKSIM MERENKOV, NP-C appears in CMS Medicare data with 2,588 Part D claims and 578 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MAKSIM MERENKOV, NP-C's credentials?
MAKSIM MERENKOV, NP-C's NPI is 1407408032 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