2026 NPPES data Gynecology Physician NPI 1134292881 MD
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SILVIO MANDARA, MD

Gynecology Physician in STAMFORD, 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
461
Medicare Part D claims · 139 beneficiaries · Gynecology Physician avg: 295
Generic prescribing
82%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$339.19
13 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: SILVIO MANDARA, MD is a Gynecology Physician ([object Object]) practicing in STAMFORD, Connecticut with a Medicare Part D prescribing footprint of 461 claims across 139 beneficiaries — 18% brand-name prescribing . Industry payments of $339.19 across 13 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: SILVIO MANDARA, MD filed 461 Medicare Part D claims in 2023 across STAMFORD, Connecticut. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

SILVIO MANDARA, MD 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).

SILVIO MANDARA, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 11/17/2006

NPI 1134292881

Primary specialty

Gynecology Physician

Niche

3,902 US NPIs in this specialty

Medicare Part D claims

461 56% vs specialty avg

2023 prescription claims

Specialty avg: 295

Specialty distribution in Connecticut

How Gynecology Physician compares to other specialties among Connecticut providers

Connecticut providers

Gynecology Physician share within Connecticut

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

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).

SILVIO MANDARA, MD is a Gynecology Physician provider practicing in STAMFORD, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1134292881. 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.

SILVIO MANDARA, MD appears in the CMS NPPES registry as a Gynecology Physician provider holding MD credentials at 27 OAK ST, STAMFORD, CT, 06905, with a listed phone of (203) 324-2262. NPI 1134292881 was issued on 11/17/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MANDARA 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 461 prescription claims written by this provider, covering 139 Medicare beneficiaries and totaling roughly $68K in drug spend, split 18% brand-name and 82% 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

27 OAK ST
STAMFORD, CT 06905

Provider Details

NPI 1134292881
Specialty Gynecology Physician
Credentials MD
Gender Male
NPI Issued 11/17/2006

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 SILVIO MANDARA, MD. Source: openpaymentsdata.cms.gov.

Total received

$339

Largest payer

Amgen Inc.

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

SILVIO MANDARA, MD — brand share 18.0%
Specialty average (est.)

18% brand-name claims vs 82% generic, on 461 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.

461
Total Claims
$68K
Total Drug Cost
139
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
820
Total Day Supply
22,017
Brand vs Generic
18% brand / 82% generic
Brand Drug Cost
$59K
Generic Drug Cost
$9K
Antibiotic Claims
57

Patient Demographics

Average Patient Age
72.3 years
Avg HCC Risk Score
0.72
Gender Split
100% female / 0% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Alprazolam
88
Zolpidem Tartrate
44
Ciprofloxacin Hcl
30
Estradiol
24
Myrbetriq
Mirabegron
21
Clobetasol Propionate
19
Fluconazole
18
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
17
Nystatin
14
Prolia
Denosumab
14

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

Gynecology Physician Overview

How SILVIO MANDARA, MD fits within the Gynecology Physician landscape nationally.

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

SILVIO MANDARA, MD's 461 claims are above the specialty average of 295.

Nearby Gynecology Physician Providers in Connecticut

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

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

Frequently Asked Questions

What is SILVIO MANDARA, MD's specialty?
SILVIO MANDARA, MD specializes in Gynecology Physician and practices in STAMFORD, Connecticut. Credentials: MD.
How much does SILVIO MANDARA, MD prescribe under Medicare Part D?
In 2023, SILVIO MANDARA, MD wrote 461 Medicare Part D claims totaling $68K in drug costs for 139 beneficiaries.
Where is SILVIO MANDARA, MD located?
SILVIO MANDARA, MD is located at 27 OAK ST, STAMFORD, CT, 06905. Phone: (203) 324-2262.
What is SILVIO MANDARA, MD's NPI number?
SILVIO MANDARA, MD's National Provider Identifier (NPI) is 1134292881, issued on 11/17/2006.
Does SILVIO MANDARA, MD prescribe more brand-name or generic drugs?
SILVIO MANDARA, MD's prescribing is 18% brand-name and 82% generic drugs by claim count, with $59K 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 SILVIO MANDARA, MD prescribe most often?
Based on 2023 Medicare Part D data, SILVIO MANDARA, MD's most frequently prescribed drugs include Alprazolam, Zolpidem Tartrate, Ciprofloxacin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SILVIO MANDARA, MD accept Medicare?
SILVIO MANDARA, MD appears in CMS Medicare data with 461 Part D claims and 139 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SILVIO MANDARA, MD's credentials?
SILVIO MANDARA, MD's NPI is 1134292881 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.
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