2026 NPPES data Surgery Physician NPI 1841299708 MD
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ZANDRA CHENG, MD

Surgery Physician in DANBURY, 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
24
Medicare Part D claims · 18 beneficiaries · Surgery Physician avg: 169
What the federal data reveals: ZANDRA CHENG, MD is a Surgery Physician ([object Object]) practicing in DANBURY, Connecticut with a Medicare Part D prescribing footprint of 24 claims across 18 beneficiaries .

What stands out: ZANDRA CHENG, MD filed 24 Medicare Part D claims in 2023 across DANBURY, Connecticut. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

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

ZANDRA CHENG, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 07/21/2005

NPI 1841299708

Primary specialty

Surgery Physician

Mid-sized

36,191 US NPIs in this specialty

Medicare Part D claims

24 86% vs specialty avg

2023 prescription claims

Specialty avg: 169

Specialty distribution in Connecticut

How Surgery Physician compares to other specialties among Connecticut providers

Connecticut providers

Surgery Physician share within Connecticut

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

Specialty board-certification context

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

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

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

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

ZANDRA CHENG, MD is a Surgery Physician provider practicing in DANBURY, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1841299708. 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.

ZANDRA CHENG, MD appears in the CMS NPPES registry as a Surgery Physician provider holding MD credentials at 20 GERMANTOWN RD, DANBURY, CT, 06810, with a listed phone of (203) 739-7040. NPI 1841299708 was issued on 07/21/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHENG 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 24 prescription claims written by this provider, covering 18 Medicare beneficiaries and totaling roughly $348 in drug spend. 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.

Surgery Physician is a mid-sized specialty nationwide, with 36,191 enrolled providers across 56 states and an average of 169 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

20 GERMANTOWN RD
DANBURY, CT 06810

Provider Details

NPI 1841299708
Specialty Surgery Physician
Credentials MD
Gender Female
NPI Issued 07/21/2005

Hospital and facility affiliations

Facilities where ZANDRA CHENG, 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.

EXCELCARE MEDICAL ASSOCIATES PA
TEANECK, 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).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

24
Total Claims
$348
Total Drug Cost
18
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
26
Total Day Supply
563
Brand Drug Cost
$0
Generic Drug Cost
$348

Patient Demographics

Average Patient Age
71.4 years
Avg HCC Risk Score
0.91
Gender Split
100% female / 0% male

Surgery Physician Overview

How ZANDRA CHENG, MD fits within the Surgery Physician landscape nationally.

36,191
Surgery Physician Providers in US
56
States with Surgery Physician
169
Avg Claims per Provider

ZANDRA CHENG, MD's 24 claims are below the specialty average of 169.

Nearby Surgery Physician Providers in Connecticut

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

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

Frequently Asked Questions

What is ZANDRA CHENG, MD's specialty?
ZANDRA CHENG, MD specializes in Surgery Physician and practices in DANBURY, Connecticut. Credentials: MD.
How much does ZANDRA CHENG, MD prescribe under Medicare Part D?
In 2023, ZANDRA CHENG, MD wrote 24 Medicare Part D claims totaling $348 in drug costs for 18 beneficiaries.
Where is ZANDRA CHENG, MD located?
ZANDRA CHENG, MD is located at 20 GERMANTOWN RD, DANBURY, CT, 06810. Phone: (203) 739-7040.
What is ZANDRA CHENG, MD's NPI number?
ZANDRA CHENG, MD's National Provider Identifier (NPI) is 1841299708, issued on 07/21/2005.
How many Surgery Physician providers are there in the US?
There are 36,191 Surgery Physician providers across 56 states in the US. The average Surgery Physician provider writes 169 Medicare Part D claims per year.
Does ZANDRA CHENG, MD accept Medicare?
ZANDRA CHENG, MD appears in CMS Medicare data with 24 Part D claims and 18 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ZANDRA CHENG, MD's credentials?
ZANDRA CHENG, MD's NPI is 1841299708 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