2026 NPPES data Women's Health Nurse Practitioner NPI 1528619657 NP
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ISABELLA PAIVA-GUSMAO, NP

Women's Health Nurse Practitioner in CHELMSFORD, 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
369
Medicare Part D claims · 50 beneficiaries · Women's Health Nurse Practitioner avg: 262
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ISABELLA PAIVA-GUSMAO, NP filed 369 Medicare Part D claims in 2023 as a Women's Health Nurse Practitioner in CHELMSFORD, Massachusetts, prescribing 83% generic.

369
Part D claims, 2023
83%
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.

ISABELLA PAIVA-GUSMAO, NP's Medicare Part D volume vs every U.S. prescriber

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

369 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. 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 ISABELLA PAIVA-GUSMAO, NP?

Quality data not reported

NPI registry status

Active

Issued 09/20/2019

NPI 1528619657

Primary specialty

Women's Health Nurse Practitioner

Mid-sized

9,452 US NPIs in this specialty

Medicare Part D claims

369 41% vs specialty avg

2023 prescription claims

Specialty avg: 262

Specialty distribution in Massachusetts

How Women's Health Nurse Practitioner compares to other specialties among Massachusetts providers

Massachusetts providers

Women's Health Nurse Practitioner share within Massachusetts

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

Specialty board-certification context

Estimated specialty board-certified rate — Women's Health Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Women's Health Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Women's Health Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Women's Health 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).

ISABELLA PAIVA-GUSMAO, NP appears in the CMS NPPES registry as a Women's Health Nurse Practitioner provider holding NP credentials at 16 ALPINE LN, CHELMSFORD, MA, 01824, with a listed phone of (978) 296-7730. NPI 1528619657 was issued on 09/20/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PAIVA-GUSMAO 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 369 prescription claims written by this provider, covering 50 Medicare beneficiaries and totaling roughly $64K in drug spend, split 17% brand-name and 83% generic by claim count. 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.

Women's Health Nurse Practitioner is a mid-sized specialty nationwide, with 9,452 enrolled providers across 55 states and an average of 262 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

16 ALPINE LN
CHELMSFORD, MA 01824

Provider Details

NPI 1528619657
Specialty Women's Health Nurse Practitioner
Credentials NP
Gender Female
NPI Issued 09/20/2019

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 ISABELLA PAIVA-GUSMAO, NP. To verify ISABELLA PAIVA-GUSMAO, 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.

Brand vs generic prescribing mix · Typical

ISABELLA PAIVA-GUSMAO, NP — brand share 17.0%
Specialty average (est.)

17% brand-name claims vs 83% generic, on 369 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.

369
Total Claims
$64K
Total Drug Cost
50
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
763
Total Day Supply
22,030
Brand vs Generic
17% brand / 83% generic
Brand Drug Cost
$56K
Generic Drug Cost
$7K

Patient Demographics

Average Patient Age
65.8 years
Avg HCC Risk Score
0.97
Gender Split
58% female / 42% male
Age Distribution
<65: 23, 65-74: 15, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What ISABELLA PAIVA-GUSMAO, 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
Amlodipine Besylate
24
Lisinopril
20
Albuterol Sulfate Hfa
Albuterol Sulfate
19
Metformin Hcl
19
Omeprazole
18
Levothyroxine Sodium
11
Lantus Solostar
"Insulin Glargine
N/A

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

Women's Health Nurse Practitioner Overview

How ISABELLA PAIVA-GUSMAO, NP fits within the Women's Health Nurse Practitioner landscape nationally.

9,452
Women's Health Nurse Practitioner Providers in US
55
States with Women's Health Nurse Practitioner
262
Avg Claims per Provider

ISABELLA PAIVA-GUSMAO, NP's 369 claims are above the specialty average of 262.

Nearby Women's Health Nurse Practitioner Providers in Massachusetts

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

Compare Women's Health Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is ISABELLA PAIVA-GUSMAO, NP's specialty?
ISABELLA PAIVA-GUSMAO, NP specializes in Women's Health Nurse Practitioner and practices in CHELMSFORD, Massachusetts. Credentials: NP.
How much does ISABELLA PAIVA-GUSMAO, NP prescribe under Medicare Part D?
In 2023, ISABELLA PAIVA-GUSMAO, NP wrote 369 Medicare Part D claims totaling $64K in drug costs for 50 beneficiaries.
Where is ISABELLA PAIVA-GUSMAO, NP located?
ISABELLA PAIVA-GUSMAO, NP is located at 16 ALPINE LN, CHELMSFORD, MA, 01824. Phone: (978) 296-7730.
What is ISABELLA PAIVA-GUSMAO, NP's NPI number?
ISABELLA PAIVA-GUSMAO, NP's National Provider Identifier (NPI) is 1528619657, issued on 09/20/2019.
Does ISABELLA PAIVA-GUSMAO, NP prescribe more brand-name or generic drugs?
ISABELLA PAIVA-GUSMAO, NP's prescribing is 17% brand-name and 83% generic drugs by claim count, with $56K in brand drug costs.
How many Women's Health Nurse Practitioner providers are there in the US?
There are 9,452 Women's Health Nurse Practitioner providers across 55 states in the US. The average Women's Health Nurse Practitioner provider writes 262 Medicare Part D claims per year.
What drugs does ISABELLA PAIVA-GUSMAO, NP prescribe most often?
Based on 2023 Medicare Part D data, ISABELLA PAIVA-GUSMAO, NP's most frequently prescribed drugs include Amlodipine Besylate, Lisinopril, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ISABELLA PAIVA-GUSMAO, NP accept Medicare?
ISABELLA PAIVA-GUSMAO, NP appears in CMS Medicare data with 369 Part D claims and 50 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ISABELLA PAIVA-GUSMAO, NP's credentials?
ISABELLA PAIVA-GUSMAO, NP's NPI is 1528619657 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