2026 NPPES data Critical Care Medicine Nurse Practitioner NPI 1922291913 NP
Verify on CMS →

KAREN GRISWOLD, NP

Critical Care Medicine Nurse Practitioner in GALLOWAY, 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
81
Medicare Part D claims · 31 beneficiaries · Critical Care Medicine Nurse Practitioner avg: 426

What the federal data shows

KAREN GRISWOLD, NP filed 81 Medicare Part D claims in 2023 as a Critical Care Medicine Nurse Practitioner in GALLOWAY, New Jersey.

81
Part D claims, 2023

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.

KAREN GRISWOLD, NP's Medicare Part D volume vs every U.S. prescriber

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

81 0th percentile higher than 0% 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

What does the federal data show about KAREN GRISWOLD, NP?

Quality data not reported

NPI registry status

Active

Issued 08/22/2007

NPI 1922291913

Primary specialty

Critical Care Medicine Nurse Practitioner

Niche

1,410 US NPIs in this specialty

Medicare Part D claims

81 81% vs specialty avg

2023 prescription claims

Specialty avg: 426

Specialty distribution in New Jersey

How Critical Care Medicine Nurse Practitioner compares to other specialties among New Jersey providers

New Jersey providers

Critical Care Medicine Nurse Practitioner share within New Jersey

1. Critical Care Medicine Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Critical Care Medicine Nurse Practitioner share within New Jersey

Specialty board-certification context

Estimated specialty board-certified rate — Critical Care Medicine Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Critical Care Medicine Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Critical Care Medicine Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Critical Care Medicine Nurse Practitioner) — 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).

KAREN GRISWOLD, NP appears in the CMS NPPES registry as a Critical Care Medicine Nurse Practitioner provider holding NP credentials at 741 S 2ND AVE, GALLOWAY, NJ, 08205, with a listed phone of (609) 748-7300. NPI 1922291913 was issued on 08/22/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GRISWOLD 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 81 prescription claims written by this provider, covering 31 Medicare beneficiaries and totaling roughly $1K 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.

Critical Care Medicine Nurse Practitioner is a narrow specialty nationwide, with 1,410 enrolled providers across 50 states and an average of 426 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

741 S 2ND AVE
GALLOWAY, NJ 08205

Provider Details

NPI 1922291913
Specialty Critical Care Medicine Nurse Practitioner
Credentials NP
Gender Female
NPI Issued 08/22/2007

Medicare Part D Prescribing Data

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

81
Total Claims
$1K
Total Drug Cost
31
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
203
Total Day Supply
6,092
Generic Drug Cost
$945

Patient Demographics

Average Patient Age
73.0 years
Avg HCC Risk Score
0.77
Gender Split
58% female / 42% 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
Atorvastatin Calcium
16

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

Critical Care Medicine Nurse Practitioner Overview

How KAREN GRISWOLD, NP fits within the Critical Care Medicine Nurse Practitioner landscape nationally.

1,410
Critical Care Medicine Nurse Practitioner Providers in US
50
States with Critical Care Medicine Nurse Practitioner
426
Avg Claims per Provider

KAREN GRISWOLD, NP's 81 claims are below the specialty average of 426.

Nearby Critical Care Medicine Nurse Practitioner Providers in New Jersey

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

Compare Critical Care Medicine Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is KAREN GRISWOLD, NP's specialty?
KAREN GRISWOLD, NP specializes in Critical Care Medicine Nurse Practitioner and practices in GALLOWAY, New Jersey. Credentials: NP.
How much does KAREN GRISWOLD, NP prescribe under Medicare Part D?
In 2023, KAREN GRISWOLD, NP wrote 81 Medicare Part D claims totaling $1K in drug costs for 31 beneficiaries.
Where is KAREN GRISWOLD, NP located?
KAREN GRISWOLD, NP is located at 741 S 2ND AVE, GALLOWAY, NJ, 08205. Phone: (609) 748-7300.
What is KAREN GRISWOLD, NP's NPI number?
KAREN GRISWOLD, NP's National Provider Identifier (NPI) is 1922291913, issued on 08/22/2007.
How many Critical Care Medicine Nurse Practitioner providers are there in the US?
There are 1,410 Critical Care Medicine Nurse Practitioner providers across 50 states in the US. The average Critical Care Medicine Nurse Practitioner provider writes 426 Medicare Part D claims per year.
What drugs does KAREN GRISWOLD, NP prescribe most often?
Based on 2023 Medicare Part D data, KAREN GRISWOLD, NP's most frequently prescribed drugs include Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KAREN GRISWOLD, NP accept Medicare?
KAREN GRISWOLD, NP appears in CMS Medicare data with 81 Part D claims and 31 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KAREN GRISWOLD, NP's credentials?
KAREN GRISWOLD, NP's NPI is 1922291913 with credentials NP. 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