2026 NPPES data Emergency Medical Services (Emergency Medicine) Physician NPI 1649322785 MD
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CAROL NIERODA, MD

Emergency Medical Services (Emergency Medicine) Physician in LAUREL, Maryland. 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
897
Medicare Part D claims · 110 beneficiaries · Emergency Medical Services (Emergency Medicine) Physician avg: 394

What the federal data shows

CAROL NIERODA, MD filed 897 Medicare Part D claims in 2023 as a Emergency Medical Services (Emergency Medicine) Physician in LAUREL, Maryland.

897
Part D claims, 2023
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.

CAROL NIERODA, MD's Medicare Part D volume vs every U.S. prescriber

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

897 Top 27% higher than 73% 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%). Below this entry. 800–1,000: 40,919 prescribers (3%). This entry sits in this band. 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)

CAROL NIERODA, 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).

What does the federal data show about CAROL NIERODA, MD?

Quality data not reported

NPI registry status

Active

Issued 01/17/2007

NPI 1649322785

Primary specialty

Emergency Medical Services (Emergency Medicine) Physician

Niche

3,616 US NPIs in this specialty

Medicare Part D claims

897 128% vs specialty avg

2023 prescription claims

Specialty avg: 394

Specialty distribution in Maryland

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

Maryland providers

Emergency Medical Services (Emergency Medicine) Physician share within Maryland

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 Maryland

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).

CAROL NIERODA, MD appears in the CMS NPPES registry as a Emergency Medical Services (Emergency Medicine) Physician provider holding MD credentials at 7300 VAN DUSEN RD, LAUREL, MD, 20707, with a listed phone of (301) 497-7954. NPI 1649322785 was issued on 01/17/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what NIERODA 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 897 prescription claims written by this provider, covering 110 Medicare beneficiaries and totaling roughly $70K 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.

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

7300 VAN DUSEN RD
LAUREL, MD 20707

Provider Details

NPI 1649322785
Specialty Emergency Medical Services (Emergency Medicine) Physician
Credentials MD
Gender Female
NPI Issued 01/17/2007

Hospital and facility affiliations

Facilities where CAROL NIERODA, 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.

PADDER HEALTH SERVICES LLC
LAUREL, MD

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.

897
Total Claims
$70K
Total Drug Cost
110
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,779
Total Day Supply
51,976
Generic Drug Cost
$34K
Antibiotic Claims
11

Patient Demographics

Average Patient Age
74.7 years
Avg HCC Risk Score
1.08
Gender Split
79% female / 21% male

Top Prescribed Drugs (Medicare Part D)

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

What CAROL NIERODA, MD 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
Amlodipine Besylate
43
Atorvastatin Calcium
41
Levothyroxine Sodium
40
Losartan Potassium
30
Alprazolam
29
Montelukast Sodium
24
Zolpidem Tartrate
24
Levetiracetam
23
Omeprazole
22
Sertraline Hcl
21

* 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 CAROL NIERODA, MD 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

CAROL NIERODA, MD's 897 claims are above the specialty average of 394.

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

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

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

Frequently Asked Questions

What is CAROL NIERODA, MD's specialty?
CAROL NIERODA, MD specializes in Emergency Medical Services (Emergency Medicine) Physician and practices in LAUREL, Maryland. Credentials: MD.
How much does CAROL NIERODA, MD prescribe under Medicare Part D?
In 2023, CAROL NIERODA, MD wrote 897 Medicare Part D claims totaling $70K in drug costs for 110 beneficiaries.
Where is CAROL NIERODA, MD located?
CAROL NIERODA, MD is located at 7300 VAN DUSEN RD, LAUREL, MD, 20707. Phone: (301) 497-7954.
What is CAROL NIERODA, MD's NPI number?
CAROL NIERODA, MD's National Provider Identifier (NPI) is 1649322785, issued on 01/17/2007.
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 CAROL NIERODA, MD prescribe most often?
Based on 2023 Medicare Part D data, CAROL NIERODA, MD's most frequently prescribed drugs include Amlodipine Besylate, Atorvastatin Calcium, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CAROL NIERODA, MD accept Medicare?
CAROL NIERODA, MD appears in CMS Medicare data with 897 Part D claims and 110 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CAROL NIERODA, MD's credentials?
CAROL NIERODA, MD's NPI is 1649322785 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