2026 NPPES data Lactation Consultant (Registered Nurse) NPI 1912524521 APRN
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MARIA DEL MAR MAZZA, APRN

Lactation Consultant (Registered Nurse) in BRIDGEPORT, Connecticut. 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
50
Medicare Part D claims · Lactation Consultant (Registered Nurse) avg: 560
Generic prescribing
22%
generic claims · 78% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: MARIA DEL MAR MAZZA, APRN is a Lactation Consultant (Registered Nurse) ([object Object]) practicing in BRIDGEPORT, Connecticut with a Medicare Part D prescribing footprint of 50 claims — 78% brand-name prescribing .

What the federal data shows

MARIA DEL MAR MAZZA, APRN filed 50 Medicare Part D claims in 2023 as a Lactation Consultant (Registered Nurse) in BRIDGEPORT, Connecticut, prescribing 22% generic.

50
Part D claims, 2023
22%
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.

MARIA DEL MAR MAZZA, APRN at a glance

Quality data not reported

NPI registry status

Active

Issued 06/30/2020

NPI 1912524521

Primary specialty

Lactation Consultant (Registered Nurse)

Niche

3,799 US NPIs in this specialty

Medicare Part D claims

50 91% vs specialty avg

2023 prescription claims

Specialty avg: 560

Specialty distribution in Connecticut

How Lactation Consultant (Registered Nurse) compares to other specialties among Connecticut providers

Connecticut providers

Lactation Consultant (Registered Nurse) share within Connecticut

1. Lactation Consultant (Registered Nurse)42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Lactation Consultant (Registered Nurse) share within Connecticut

Specialty board-certification context

Estimated specialty board-certified rate — Lactation Consultant (Registered Nurse) (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Lactation Consultant (Registered Nurse) ABMS/AOA estimate

Est. board-certified rate (Lactation Consultant (Registered Nurse)) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Lactation Consultant (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).

MARIA DEL MAR MAZZA, APRN is a Lactation Consultant (Registered Nurse) provider practicing in BRIDGEPORT, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: APRN. NPI: 1912524521. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

MARIA DEL MAR MAZZA, APRN appears in the CMS NPPES registry as a Lactation Consultant (Registered Nurse) provider holding APRN credentials at 982 E MAIN ST, BRIDGEPORT, CT, 06608, with a listed phone of (203) 589-7857. NPI 1912524521 was issued on 06/30/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MAZZA 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 50 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $45K in drug spend, split 78% brand-name and 22% 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.

Lactation Consultant (Registered Nurse) is a narrow specialty nationwide, with 3,799 enrolled providers across 53 states and an average of 560 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

982 E MAIN ST
BRIDGEPORT, CT 06608

Provider Details

NPI 1912524521
Specialty Lactation Consultant (Registered Nurse)
Credentials APRN
Gender Female
NPI Issued 06/30/2020

Hospital and facility affiliations

Facilities where MARIA DEL MAR MAZZA, APRN 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.

OPTIMUS HEALTH CARE INC
BRIDGEPORT, CT

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

Brand vs generic prescribing mix · Brand-heavy

MARIA DEL MAR MAZZA, APRN — brand share 78.0%
Specialty average (est.)

78% brand-name claims vs 22% generic, on 50 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.

50
Total Claims
$45K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
67
Total Day Supply
1,992
Brand vs Generic
78% brand / 22% generic
Brand Drug Cost
$44K

Patient Demographics

Average Patient Age
59.1 years
Avg HCC Risk Score
1.04

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Ozempic
Semaglutide
29

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

Lactation Consultant (Registered Nurse) Overview

How MARIA DEL MAR MAZZA, APRN fits within the Lactation Consultant (Registered Nurse) landscape nationally.

3,799
Lactation Consultant (Registered Nurse) Providers in US
53
States with Lactation Consultant (Registered Nurse)
560
Avg Claims per Provider

MARIA DEL MAR MAZZA, APRN's 50 claims are below the specialty average of 560.

Nearby Lactation Consultant (Registered Nurse) Providers in Connecticut

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

Compare Lactation Consultant (Registered Nurse) nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARIA DEL MAR MAZZA, APRN's specialty?
MARIA DEL MAR MAZZA, APRN specializes in Lactation Consultant (Registered Nurse) and practices in BRIDGEPORT, Connecticut. Credentials: APRN.
How much does MARIA DEL MAR MAZZA, APRN prescribe under Medicare Part D?
In 2023, MARIA DEL MAR MAZZA, APRN wrote 50 Medicare Part D claims totaling $45K in drug costs for N/A beneficiaries.
Where is MARIA DEL MAR MAZZA, APRN located?
MARIA DEL MAR MAZZA, APRN is located at 982 E MAIN ST, BRIDGEPORT, CT, 06608. Phone: (203) 589-7857.
What is MARIA DEL MAR MAZZA, APRN's NPI number?
MARIA DEL MAR MAZZA, APRN's National Provider Identifier (NPI) is 1912524521, issued on 06/30/2020.
Does MARIA DEL MAR MAZZA, APRN prescribe more brand-name or generic drugs?
MARIA DEL MAR MAZZA, APRN's prescribing is 78% brand-name and 22% generic drugs by claim count, with $44K in brand drug costs.
How many Lactation Consultant (Registered Nurse) providers are there in the US?
There are 3,799 Lactation Consultant (Registered Nurse) providers across 53 states in the US. The average Lactation Consultant (Registered Nurse) provider writes 560 Medicare Part D claims per year.
What drugs does MARIA DEL MAR MAZZA, APRN prescribe most often?
Based on 2023 Medicare Part D data, MARIA DEL MAR MAZZA, APRN's most frequently prescribed drugs include Ozempic. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARIA DEL MAR MAZZA, APRN accept Medicare?
MARIA DEL MAR MAZZA, APRN appears in CMS Medicare data with 50 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARIA DEL MAR MAZZA, APRN's credentials?
MARIA DEL MAR MAZZA, APRN's NPI is 1912524521 with credentials APRN. 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