NPI registry status
Active
2026 NPPES data Surgical Critical Care Physician NPI 1639143514 MD
Verify on CMS → JEFFRY ZERN, MD
Surgical Critical Care Physician in NEWARK, 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
118
Medicare Part D claims · 52 beneficiaries · Surgical Critical Care Physician avg: 86
Industry payments
$140
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: JEFFRY ZERN, MD is a Surgical Critical Care Physician ([object Object]) practicing in NEWARK, Delaware with a Medicare Part D prescribing footprint of 118 claims across 52 beneficiaries . Industry payments of $140 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).
What stands out: JEFFRY ZERN, MD filed 118 Medicare Part D claims in 2023 across NEWARK, Delaware. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.
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Board certification likely (heuristic — not verified)
JEFFRY ZERN, 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).
JEFFRY ZERN, MD at a glance
Quality data not reportedPrimary specialty
Surgical Critical Care Physician
Medicare Part D claims
118 37% vs specialty avg
Specialty distribution in Delaware
How Surgical Critical Care Physician compares to other specialties among Delaware providers
Surgical Critical Care Physician share within Delaware
Specialty board-certification context
Estimated specialty board-certified rate — Surgical Critical Care Physician (ABMS / AOA reference)
- Est. board-certified rate
- 78%
- Surgical Critical Care Physician ABMS/AOA estimate
Est. board-certified rate (Surgical Critical Care 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).
JEFFRY ZERN, MD is a Surgical Critical Care Physician provider practicing in NEWARK, Delaware, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1639143514. 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.
JEFFRY ZERN, MD appears in the CMS NPPES registry as a Surgical Critical Care Physician provider holding MD credentials at 4735 OGLETOWN-STANTON ROAD, NEWARK, DE, 19713, with a listed phone of (302) 623-3850. NPI 1639143514 was issued on 02/15/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ZERN 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 118 prescription claims written by this provider, covering 52 Medicare beneficiaries and totaling roughly $1K in drug spend, with an opioid prescribing rate of 33.9%. 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.
Surgical Critical Care Physician is a narrow specialty nationwide, with 1,468 enrolled providers across 53 states and an average of 86 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
Provider Details
| NPI | 1639143514 |
|---|---|
| Specialty | Surgical Critical Care Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 02/15/2006 |
Hospital and facility affiliations
Facilities where JEFFRY ZERN, 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.
CHRISTIANA CARE HEALTH SERVICES INC
WILMINGTON, DE
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 JEFFRY ZERN, MD. Source: openpaymentsdata.cms.gov.
Total received
$140
Largest payer
Virtual Incision Corporation
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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
118
Total Claims
$1K
Total Drug Cost
52
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 168
- Total Day Supply
- 3,115
- Generic Drug Cost
- $1K
- Opioid Claims
- 40 (33.9% rate)
Patient Demographics
- Average Patient Age
- 73.5 years
- Avg HCC Risk Score
- 0.92
- Gender Split
- 62% female / 38% 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 |
|---|---|
| Oxycodone Hcl | 36 |
| Gabapentin | 33 |
| Omeprazole | 28 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Surgical Critical Care Physician Overview
How JEFFRY ZERN, MD fits within the Surgical Critical Care Physician landscape nationally.
1,468
Surgical Critical Care Physician Providers in US
53
States with Surgical Critical Care Physician
86
Avg Claims per Provider
JEFFRY ZERN, MD's 118 claims are above the specialty average of 86.
Nearby Surgical Critical Care Physician Providers in Delaware
Other clinicians with the same primary specialty enrolled in Delaware, drawn from the same CMS NPPES roster as ZERN.
Dr. LINDSAY DAQUI
PA-C
NEWARK, DE
Dr. GERARD FULDA
MD
NEWARK, DE
Dr. FREDERICK GIBERSON
MD
NEWARK, DE
Dr. MARCIN JANKOWSKI
D.O.
NEWARK, DE
Dr. MICHAEL KOLLAR
NURSE PRACTITIONER
NEWARK, DE
Compare Surgical Critical Care Physician nationally: see state-by-state distribution →
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Frequently Asked Questions
What is JEFFRY ZERN, MD's specialty? ▼
JEFFRY ZERN, MD specializes in Surgical Critical Care Physician and practices in NEWARK, Delaware. Credentials: MD.
How much does JEFFRY ZERN, MD prescribe under Medicare Part D? ▼
In 2023, JEFFRY ZERN, MD wrote 118 Medicare Part D claims totaling $1K in drug costs for 52 beneficiaries.
Where is JEFFRY ZERN, MD located? ▼
JEFFRY ZERN, MD is located at 4735 OGLETOWN-STANTON ROAD, NEWARK, DE, 19713. Phone: (302) 623-3850.
What is JEFFRY ZERN, MD's NPI number? ▼
JEFFRY ZERN, MD's National Provider Identifier (NPI) is 1639143514, issued on 02/15/2006.
Does JEFFRY ZERN, MD prescribe opioids? ▼
Yes, JEFFRY ZERN, MD had 40 opioid claims in 2023 with an opioid prescribing rate of 33.9%.
How many Surgical Critical Care Physician providers are there in the US? ▼
There are 1,468 Surgical Critical Care Physician providers across 53 states in the US. The average Surgical Critical Care Physician provider writes 86 Medicare Part D claims per year.
What drugs does JEFFRY ZERN, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, JEFFRY ZERN, MD's most frequently prescribed drugs include Oxycodone Hcl, Gabapentin, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JEFFRY ZERN, MD accept Medicare? ▼
JEFFRY ZERN, MD appears in CMS Medicare data with 118 Part D claims and 52 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JEFFRY ZERN, MD's credentials? ▼
JEFFRY ZERN, MD's NPI is 1639143514 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