2026 NPPES data Emergency Medicine Physician NPI 1033326640 D.O.
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MICHAEL PASSAFARO, D.O.

Emergency Medicine Physician in BERKELEY HEIGHTS, New Jersey. 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
631
Medicare Part D claims · 480 beneficiaries · Emergency Medicine Physician avg: 352
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

MICHAEL PASSAFARO, D.O. filed 631 Medicare Part D claims in 2023 as a Emergency Medicine Physician in BERKELEY HEIGHTS, New Jersey, prescribing 95% generic.

631
Part D claims, 2023
95%
generic prescribing
Likely
board-certified (heuristic)

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.

MICHAEL PASSAFARO, D.O.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

631 Top 31% higher than 69% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). This entry sits in this band. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

MICHAEL PASSAFARO, D.O. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about MICHAEL PASSAFARO, D.O.?

Quality data not reported

NPI registry status

Active

Issued 05/16/2007

NPI 1033326640

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

631 79% vs specialty avg

2023 prescription claims

Specialty avg: 352

Specialty distribution in New Jersey

How Emergency Medicine Physician compares to other specialties among New Jersey providers

New Jersey providers

Emergency Medicine Physician share within New Jersey

1. Emergency Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Emergency Medicine Physician share within New Jersey

Specialty board-certification context

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

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

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

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

MICHAEL PASSAFARO, D.O. appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding D.O. credentials at 1 DIAMOND HILL RD, BERKELEY HEIGHTS, NJ, 07922, with a listed phone of (908) 277-8880. NPI 1033326640 was issued on 05/16/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PASSAFARO 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 631 prescription claims written by this provider, covering 480 Medicare beneficiaries and totaling roughly $8K in drug spend, split 5% brand-name and 95% 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.

Emergency Medicine Physician is a high-volume specialty nationwide, with 64,398 enrolled providers across 56 states and an average of 352 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

1 DIAMOND HILL RD
BERKELEY HEIGHTS, NJ 07922

Provider Details

NPI 1033326640
Specialty Emergency Medicine Physician
Credentials D.O.
Gender Male
NPI Issued 05/16/2007

Hospital and facility affiliations

Facilities where MICHAEL PASSAFARO, D.O. 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.

NEW YORK UNIVERSITY
NEW YORK, NY
SUMMIT MEDICAL GROUP PA
BERKELEY HEIGHTS, 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).

Brand vs generic prescribing mix · Generic-heavy

MICHAEL PASSAFARO, D.O. — brand share 5.0%
Specialty average (est.)

5% brand-name claims vs 95% generic, on 631 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.

631
Total Claims
$8K
Total Drug Cost
480
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
635
Total Day Supply
5,458
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$3K
Generic Drug Cost
$5K
Antibiotic Claims
350

Patient Demographics

Average Patient Age
73.6 years
Avg HCC Risk Score
1.04
Gender Split
65% female / 35% male
Age Distribution
<65: 29, 65-74: 232, 75-84: 171, 85+: 48

Top Prescribed Drugs (Medicare Part D)

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

What MICHAEL PASSAFARO, D.O. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Azithromycin
140
Cephalexin
46
Methylprednisolone
45
Prednisone
45
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
40
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
36
Paxlovid (Eua)
Nirmatrelvir/Ritonavir
35
Clindamycin Hcl
27
Polymyxin B Sul-Trimethoprim
Polymyxin B Sulf/Trimethoprim
26
Cyclobenzaprine Hcl
17

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

Emergency Medicine Physician Overview

How MICHAEL PASSAFARO, D.O. fits within the Emergency Medicine Physician landscape nationally.

64,398
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider

MICHAEL PASSAFARO, D.O.'s 631 claims are above the specialty average of 352.

Nearby Emergency Medicine Physician Providers in New Jersey

Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as PASSAFARO.

Compare Emergency Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MICHAEL PASSAFARO, D.O.'s specialty?
MICHAEL PASSAFARO, D.O. specializes in Emergency Medicine Physician and practices in BERKELEY HEIGHTS, New Jersey. Credentials: D.O..
How much does MICHAEL PASSAFARO, D.O. prescribe under Medicare Part D?
In 2023, MICHAEL PASSAFARO, D.O. wrote 631 Medicare Part D claims totaling $8K in drug costs for 480 beneficiaries.
Where is MICHAEL PASSAFARO, D.O. located?
MICHAEL PASSAFARO, D.O. is located at 1 DIAMOND HILL RD, BERKELEY HEIGHTS, NJ, 07922. Phone: (908) 277-8880.
What is MICHAEL PASSAFARO, D.O.'s NPI number?
MICHAEL PASSAFARO, D.O.'s National Provider Identifier (NPI) is 1033326640, issued on 05/16/2007.
Does MICHAEL PASSAFARO, D.O. prescribe more brand-name or generic drugs?
MICHAEL PASSAFARO, D.O.'s prescribing is 5% brand-name and 95% generic drugs by claim count, with $3K in brand drug costs.
How many Emergency Medicine Physician providers are there in the US?
There are 64,398 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does MICHAEL PASSAFARO, D.O. prescribe most often?
Based on 2023 Medicare Part D data, MICHAEL PASSAFARO, D.O.'s most frequently prescribed drugs include Azithromycin, Cephalexin, Methylprednisolone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MICHAEL PASSAFARO, D.O. accept Medicare?
MICHAEL PASSAFARO, D.O. appears in CMS Medicare data with 631 Part D claims and 480 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL PASSAFARO, D.O.'s credentials?
MICHAEL PASSAFARO, D.O.'s NPI is 1033326640 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