2026 NPPES data Nephrology Physician NPI 1023256559 MD
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GABRIELA WOJNARSKA-ALVAREZ, MD

Nephrology Physician in MONTVALE, New Jersey. 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
6K
Medicare Part D claims · 439 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
80.988/100
▼ 2 pts below national avg 83.1 · [object Object]
Industry payments
$595.66
34 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

GABRIELA WOJNARSKA-ALVAREZ, MD reported a CMS MIPS final score of 80.988/100 — below the 83.1 national average — and filed 5,928 Medicare Part D claims in 2023.

80.988/100
MIPS score · -2 vs avg
6K
Part D claims, 2023
84%
generic prescribing
Likely
board-certified (heuristic)

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.

GABRIELA WOJNARSKA-ALVAREZ, MD's MIPS score vs every scored U.S. clinician

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

81 33rd percentile higher than 33% 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%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 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

Board certification likely (heuristic — not verified)

GABRIELA WOJNARSKA-ALVAREZ, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about GABRIELA WOJNARSKA-ALVAREZ, MD?

Near national average

NPI registry status

Active

Issued 01/21/2009

NPI 1023256559

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

5,928 308% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

MIPS final score

80.988/100 2.1119999999999948% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in New Jersey

How Nephrology Physician compares to other specialties among New Jersey providers

New Jersey providers

Nephrology Physician share within New Jersey

1. Nephrology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Nephrology Physician share within New Jersey

Medicare quality performance — MIPS

GABRIELA WOJNARSKA-ALVAREZ, MD's 2023 MIPS final score plotted against the Nephrology Physician national average

Near national average
MIPS Final Score
80.988/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Nephrology Physician) — 80.988/100 vs national avg 83.1

0%100%National avg83%81%
MIPS final score (Nephrology Physician) — 80.988/100 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).

GABRIELA WOJNARSKA-ALVAREZ, MD appears in the CMS NPPES registry as a Nephrology Physician provider holding MD credentials at 221 W GRAND AVE, MONTVALE, NJ, 07645, with a listed phone of (101) 746-9333. NPI 1023256559 was issued on 01/21/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WOJNARSKA-ALVAREZ 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 5,928 prescription claims written by this provider, covering 439 Medicare beneficiaries and totaling roughly $875K in drug spend, split 16% brand-name and 84% generic by claim count, with an opioid prescribing rate of 1.5%. 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 80.988/100 for the 2023 performance year (Quality 87.7197, Cost 48.907), compared with the national average of 83.1.

Nephrology Physician is a mid-sized specialty nationwide, with 10,534 enrolled providers across 55 states and an average of 1,454 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

221 W GRAND AVE
MONTVALE, NJ 07645

Provider Details

NPI 1023256559
Specialty Nephrology Physician
Credentials MD
Gender Female
NPI Issued 01/21/2009

CMS Quality Score (MIPS)

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

80.988
Final Score
Avg: 83.1
87.7197
Quality
48.907
Cost
100
Promoting Interoperability

Reporting: Individual

Hospital and facility affiliations

Facilities where GABRIELA WOJNARSKA-ALVAREZ, MD 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.

MPV NEW JERSEY MD SERVICES PC
WESTWOOD, NJ

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 GABRIELA WOJNARSKA-ALVAREZ, MD. Source: openpaymentsdata.cms.gov.

Total received

$596

Largest payer

AstraZeneca Pharmaceuticals LP

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.

Brand vs generic prescribing mix · Typical

GABRIELA WOJNARSKA-ALVAREZ, MD — brand share 16.0%
Specialty average (est.)

16% brand-name claims vs 84% generic, on 5,928 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.

5,928
Total Claims
$875K
Total Drug Cost
439
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
12,520
Total Day Supply
356,500
Brand vs Generic
16% brand / 84% generic
Brand Drug Cost
$720K
Generic Drug Cost
$152K
Opioid Claims
86 (1.5% rate)
Antibiotic Claims
371

Patient Demographics

Average Patient Age
73.1 years
Avg HCC Risk Score
1.15
Gender Split
62% female / 38% male
Age Distribution
<65: 20, 65-74: 251, 75-84: 130, 85+: 38

Top Prescribed Drugs (Medicare Part D)

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

What GABRIELA WOJNARSKA-ALVAREZ, MD 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
289
Amlodipine Besylate
197
Levothyroxine Sodium
194
Metformin Hcl
166
Metoprolol Succinate
152
Fluticasone Propionate
128
Losartan Potassium
123
Escitalopram Oxalate
115
Rosuvastatin Calcium
115
Alprazolam
114

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

Nephrology Physician Overview

How GABRIELA WOJNARSKA-ALVAREZ, MD fits within the Nephrology Physician landscape nationally.

10,534
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider

GABRIELA WOJNARSKA-ALVAREZ, MD's 5,928 claims are above the specialty average of 1,454.

Nearby Nephrology Physician Providers in New Jersey

Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as WOJNARSKA-ALVAREZ.

Compare Nephrology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is GABRIELA WOJNARSKA-ALVAREZ, MD's specialty?
GABRIELA WOJNARSKA-ALVAREZ, MD specializes in Nephrology Physician and practices in MONTVALE, New Jersey. Credentials: MD.
How much does GABRIELA WOJNARSKA-ALVAREZ, MD prescribe under Medicare Part D?
In 2023, GABRIELA WOJNARSKA-ALVAREZ, MD wrote 5,928 Medicare Part D claims totaling $875K in drug costs for 439 beneficiaries.
What is GABRIELA WOJNARSKA-ALVAREZ, MD's Medicare quality score?
GABRIELA WOJNARSKA-ALVAREZ, MD has a CMS MIPS Final Score of 80.988/100 (Quality: 87.7197, Cost: 48.907). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is GABRIELA WOJNARSKA-ALVAREZ, MD located?
GABRIELA WOJNARSKA-ALVAREZ, MD is located at 221 W GRAND AVE, MONTVALE, NJ, 07645. Phone: (101) 746-9333.
What is GABRIELA WOJNARSKA-ALVAREZ, MD's NPI number?
GABRIELA WOJNARSKA-ALVAREZ, MD's National Provider Identifier (NPI) is 1023256559, issued on 01/21/2009.
Does GABRIELA WOJNARSKA-ALVAREZ, MD prescribe more brand-name or generic drugs?
GABRIELA WOJNARSKA-ALVAREZ, MD's prescribing is 16% brand-name and 84% generic drugs by claim count, with $720K in brand drug costs.
Does GABRIELA WOJNARSKA-ALVAREZ, MD prescribe opioids?
Yes, GABRIELA WOJNARSKA-ALVAREZ, MD had 86 opioid claims in 2023 with an opioid prescribing rate of 1.5%.
How many Nephrology Physician providers are there in the US?
There are 10,534 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does GABRIELA WOJNARSKA-ALVAREZ, MD prescribe most often?
Based on 2023 Medicare Part D data, GABRIELA WOJNARSKA-ALVAREZ, MD's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GABRIELA WOJNARSKA-ALVAREZ, MD accept Medicare?
GABRIELA WOJNARSKA-ALVAREZ, MD appears in CMS Medicare data with 5,928 Part D claims and 439 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GABRIELA WOJNARSKA-ALVAREZ, MD's credentials?
GABRIELA WOJNARSKA-ALVAREZ, MD's NPI is 1023256559 with credentials MD. 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