2026 NPPES data Gynecology Physician NPI 1700842135 D.O.
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NANCY MONDERO, D.O.

Gynecology Physician in LEWES, Delaware. 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
660
Medicare Part D claims · 214 beneficiaries · Gynecology Physician avg: 295
Generic prescribing
78%
generic claims · 22% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: NANCY MONDERO, D.O. is a Gynecology Physician ([object Object]) practicing in LEWES, Delaware with a Medicare Part D prescribing footprint of 660 claims across 214 beneficiaries — 22% brand-name prescribing .

What stands out: NANCY MONDERO, D.O. filed 660 Medicare Part D claims in 2023 across LEWES, Delaware. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

NANCY MONDERO, D.O. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

NANCY MONDERO, D.O. at a glance

Quality data not reported

NPI registry status

Active

Issued 04/25/2006

NPI 1700842135

Primary specialty

Gynecology Physician

Niche

3,902 US NPIs in this specialty

Medicare Part D claims

660 124% vs specialty avg

2023 prescription claims

Specialty avg: 295

Specialty distribution in Delaware

How Gynecology Physician compares to other specialties among Delaware providers

Delaware providers

Gynecology Physician share within Delaware

1. Gynecology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Gynecology Physician share within Delaware

Specialty board-certification context

Estimated specialty board-certified rate — Gynecology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Gynecology Physician ABMS/AOA estimate

Est. board-certified rate (Gynecology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Gynecology Physician) — 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).

NANCY MONDERO, D.O. is a Gynecology Physician provider practicing in LEWES, Delaware, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.O.. NPI: 1700842135. 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.

NANCY MONDERO, D.O. appears in the CMS NPPES registry as a Gynecology Physician provider holding D.O. credentials at 110 ANGLERS RD, LEWES, DE, 19958, with a listed phone of (302) 644-9641. NPI 1700842135 was issued on 04/25/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MONDERO 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 660 prescription claims written by this provider, covering 214 Medicare beneficiaries and totaling roughly $107K in drug spend, split 22% brand-name and 78% 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.

Gynecology Physician is a narrow specialty nationwide, with 3,902 enrolled providers across 53 states and an average of 295 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

110 ANGLERS RD
LEWES, DE 19958

Provider Details

NPI 1700842135
Specialty Gynecology Physician
Credentials D.O.
Gender Female
NPI Issued 04/25/2006

Brand vs generic prescribing mix · Typical

NANCY MONDERO, D.O. — brand share 22.0%
Specialty average (est.)

22% brand-name claims vs 78% generic, on 660 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.

660
Total Claims
$107K
Total Drug Cost
214
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,575
Total Day Supply
45,720
Brand vs Generic
22% brand / 78% generic
Brand Drug Cost
$76K
Generic Drug Cost
$30K
Antibiotic Claims
18

Patient Demographics

Average Patient Age
73.6 years
Avg HCC Risk Score
0.87

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Estradiol
95
Alendronate Sodium
65
Risedronate Sodium
48
Myrbetriq
Mirabegron
34
Clobetasol Propionate
30
Estradiol (Once Weekly)
Estradiol
29
Valacyclovir
Valacyclovir Hcl
28
Medroxyprogesterone Acetate
20
Gabapentin
18
Estradiol-Norethindrone Acetat
Estradiol/Norethindrone Acet
17

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

Gynecology Physician Overview

How NANCY MONDERO, D.O. fits within the Gynecology Physician landscape nationally.

3,902
Gynecology Physician Providers in US
53
States with Gynecology Physician
295
Avg Claims per Provider

NANCY MONDERO, D.O.'s 660 claims are above the specialty average of 295.

Nearby Gynecology Physician Providers in Delaware

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

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

Frequently Asked Questions

What is NANCY MONDERO, D.O.'s specialty?
NANCY MONDERO, D.O. specializes in Gynecology Physician and practices in LEWES, Delaware. Credentials: D.O..
How much does NANCY MONDERO, D.O. prescribe under Medicare Part D?
In 2023, NANCY MONDERO, D.O. wrote 660 Medicare Part D claims totaling $107K in drug costs for 214 beneficiaries.
Where is NANCY MONDERO, D.O. located?
NANCY MONDERO, D.O. is located at 110 ANGLERS RD, LEWES, DE, 19958. Phone: (302) 644-9641.
What is NANCY MONDERO, D.O.'s NPI number?
NANCY MONDERO, D.O.'s National Provider Identifier (NPI) is 1700842135, issued on 04/25/2006.
Does NANCY MONDERO, D.O. prescribe more brand-name or generic drugs?
NANCY MONDERO, D.O.'s prescribing is 22% brand-name and 78% generic drugs by claim count, with $76K in brand drug costs.
How many Gynecology Physician providers are there in the US?
There are 3,902 Gynecology Physician providers across 53 states in the US. The average Gynecology Physician provider writes 295 Medicare Part D claims per year.
What drugs does NANCY MONDERO, D.O. prescribe most often?
Based on 2023 Medicare Part D data, NANCY MONDERO, D.O.'s most frequently prescribed drugs include Estradiol, Alendronate Sodium, Risedronate Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NANCY MONDERO, D.O. accept Medicare?
NANCY MONDERO, D.O. appears in CMS Medicare data with 660 Part D claims and 214 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NANCY MONDERO, D.O.'s credentials?
NANCY MONDERO, D.O.'s NPI is 1700842135 with credentials D.O.. 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