2026 NPPES data Emergency Medical Services (Emergency Medicine) Physician NPI 1366486912 M.D.
Verify on CMS →

MARK STEFANELLI, M.D.

Emergency Medical Services (Emergency Medicine) Physician in ASTORIA, Oregon. 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
191
Medicare Part D claims · 109 beneficiaries · Emergency Medical Services (Emergency Medicine) Physician avg: 394
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

MARK STEFANELLI, M.D. filed 191 Medicare Part D claims in 2023 as a Emergency Medical Services (Emergency Medicine) Physician in ASTORIA, Oregon, prescribing 88% generic.

191
Part D claims, 2023
88%
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.

MARK STEFANELLI, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

191 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 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)

MARK STEFANELLI, M.D. 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 MARK STEFANELLI, M.D.?

Quality data not reported

NPI registry status

Active

Issued 06/15/2006

NPI 1366486912

Primary specialty

Emergency Medical Services (Emergency Medicine) Physician

Niche

3,616 US NPIs in this specialty

Medicare Part D claims

191 52% vs specialty avg

2023 prescription claims

Specialty avg: 394

Specialty distribution in Oregon

How Emergency Medical Services (Emergency Medicine) Physician compares to other specialties among Oregon providers

Oregon providers

Emergency Medical Services (Emergency Medicine) Physician share within Oregon

1. Emergency Medical Services (Emergency Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Emergency Medical Services (Emergency Medicine) Physician share within Oregon

Specialty board-certification context

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

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

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

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

MARK STEFANELLI, M.D. is a Emergency Medical Services (Emergency Medicine) Physician provider practicing in ASTORIA, Oregon, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1366486912. 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.

MARK STEFANELLI, M.D. appears in the CMS NPPES registry as a Emergency Medical Services (Emergency Medicine) Physician provider holding M.D. credentials at 2647 GRAND AVE, ASTORIA, OR, 97103, with a listed phone of (503) 739-6164. NPI 1366486912 was issued on 06/15/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what STEFANELLI 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 191 prescription claims written by this provider, covering 109 Medicare beneficiaries and totaling roughly $17K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 9.9%. 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.

Emergency Medical Services (Emergency Medicine) Physician is a narrow specialty nationwide, with 3,616 enrolled providers across 55 states and an average of 394 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

2647 GRAND AVE
ASTORIA, OR 97103

Provider Details

NPI 1366486912
Specialty Emergency Medical Services (Emergency Medicine) Physician
Credentials M.D.
Gender Male
NPI Issued 06/15/2006

Hospital and facility affiliations

Facilities where MARK STEFANELLI, M.D. 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.

FEDKO EMERGENCY PHYSICIANS NEW MEXICO, LLC
GRANTS, NM
FEP WEST LLC
GALLUP, NM

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 · Typical

MARK STEFANELLI, M.D. — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 191 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.

191
Total Claims
$17K
Total Drug Cost
109
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
226
Total Day Supply
3,857
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$15K
Generic Drug Cost
$2K
Opioid Claims
19 (9.9% rate)
Antibiotic Claims
61

Patient Demographics

Average Patient Age
71.0 years
Avg HCC Risk Score
1.38
Gender Split
60% female / 40% male
Age Distribution
<65: 20, 65-74: 48, 75-84: 29, 85+: 12

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Prednisone
18
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
16
Azithromycin
14
Ciprofloxacin Hcl
14

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

Emergency Medical Services (Emergency Medicine) Physician Overview

How MARK STEFANELLI, M.D. fits within the Emergency Medical Services (Emergency Medicine) Physician landscape nationally.

3,616
Emergency Medical Services (Emergency Medicine) Physician Providers in US
55
States with Emergency Medical Services (Emergency Medicine) Physician
394
Avg Claims per Provider

MARK STEFANELLI, M.D.'s 191 claims are below the specialty average of 394.

Nearby Emergency Medical Services (Emergency Medicine) Physician Providers in Oregon

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

Compare Emergency Medical Services (Emergency Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARK STEFANELLI, M.D.'s specialty?
MARK STEFANELLI, M.D. specializes in Emergency Medical Services (Emergency Medicine) Physician and practices in ASTORIA, Oregon. Credentials: M.D..
How much does MARK STEFANELLI, M.D. prescribe under Medicare Part D?
In 2023, MARK STEFANELLI, M.D. wrote 191 Medicare Part D claims totaling $17K in drug costs for 109 beneficiaries.
Where is MARK STEFANELLI, M.D. located?
MARK STEFANELLI, M.D. is located at 2647 GRAND AVE, ASTORIA, OR, 97103. Phone: (503) 739-6164.
What is MARK STEFANELLI, M.D.'s NPI number?
MARK STEFANELLI, M.D.'s National Provider Identifier (NPI) is 1366486912, issued on 06/15/2006.
Does MARK STEFANELLI, M.D. prescribe more brand-name or generic drugs?
MARK STEFANELLI, M.D.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $15K in brand drug costs.
Does MARK STEFANELLI, M.D. prescribe opioids?
Yes, MARK STEFANELLI, M.D. had 19 opioid claims in 2023 with an opioid prescribing rate of 9.9%.
How many Emergency Medical Services (Emergency Medicine) Physician providers are there in the US?
There are 3,616 Emergency Medical Services (Emergency Medicine) Physician providers across 55 states in the US. The average Emergency Medical Services (Emergency Medicine) Physician provider writes 394 Medicare Part D claims per year.
What drugs does MARK STEFANELLI, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MARK STEFANELLI, M.D.'s most frequently prescribed drugs include Prednisone, Hydrocodone-Acetaminophen, Azithromycin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARK STEFANELLI, M.D. accept Medicare?
MARK STEFANELLI, M.D. appears in CMS Medicare data with 191 Part D claims and 109 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARK STEFANELLI, M.D.'s credentials?
MARK STEFANELLI, M.D.'s NPI is 1366486912 with credentials M.D.. 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