2026 NPPES data Gerontology Nurse Practitioner NPI 1225458672 CRNP
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CHRISTINA RIZOULIS, CRNP

Gerontology Nurse Practitioner in WESTMINSTER, 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
5K
Medicare Part D claims · 434 beneficiaries · Gerontology Nurse Practitioner avg: 1K
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$121.98
4 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

CHRISTINA RIZOULIS, CRNP filed 5,257 Medicare Part D claims in 2023 as a Gerontology Nurse Practitioner in WESTMINSTER, Maryland, prescribing 89% generic.

5K
Part D claims, 2023
89%
generic prescribing
$121.98
industry payments (Sunshine Act)

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.

CHRISTINA RIZOULIS, CRNP's Medicare Part D volume vs every U.S. prescriber

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

5,257 Top 6% higher than 94% 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%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 CHRISTINA RIZOULIS, CRNP?

Quality data not reported

NPI registry status

Active

Issued 04/24/2014

NPI 1225458672

Primary specialty

Gerontology Nurse Practitioner

Mid-sized

9,625 US NPIs in this specialty

Medicare Part D claims

5,257 310% vs specialty avg

2023 prescription claims

Specialty avg: 1,283

Specialty distribution in Maryland

How Gerontology Nurse Practitioner compares to other specialties among Maryland providers

Maryland providers

Gerontology Nurse Practitioner share within Maryland

1. Gerontology Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Gerontology Nurse Practitioner share within Maryland

Specialty board-certification context

Estimated specialty board-certified rate — Gerontology Nurse Practitioner (ABMS / AOA reference)

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

Est. board-certified rate (Gerontology Nurse Practitioner) — ABMS / AOA estimate

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

CHRISTINA RIZOULIS, CRNP is a Gerontology Nurse Practitioner provider practicing in WESTMINSTER, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: CRNP. NPI: 1225458672. 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.

CHRISTINA RIZOULIS, CRNP appears in the CMS NPPES registry as a Gerontology Nurse Practitioner provider holding CRNP credentials at 200 MEMORIAL AVE, WESTMINSTER, MD, 21157, with a listed phone of (410) 848-3000. NPI 1225458672 was issued on 04/24/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what RIZOULIS 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 5,257 prescription claims written by this provider, covering 434 Medicare beneficiaries and totaling roughly $537K in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 1.7%. 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.

Gerontology Nurse Practitioner is a mid-sized specialty nationwide, with 9,625 enrolled providers across 54 states and an average of 1,283 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

200 MEMORIAL AVE
WESTMINSTER, MD 21157

Provider Details

NPI 1225458672
Specialty Gerontology Nurse Practitioner
Credentials CRNP
Gender Female
NPI Issued 04/24/2014

Hospital and facility affiliations

Facilities where CHRISTINA RIZOULIS, CRNP 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.

CARROLL HEALTH GROUP LLC
WESTMINSTER, 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).

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 CHRISTINA RIZOULIS, CRNP. Source: openpaymentsdata.cms.gov.

Total received

$122

Largest payer

Lilly USA, LLC

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.

Brand vs generic prescribing mix · Typical

CHRISTINA RIZOULIS, CRNP — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 5,257 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.

5,257
Total Claims
$537K
Total Drug Cost
434
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
11,779
Total Day Supply
343,213
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$433K
Generic Drug Cost
$103K
Opioid Claims
87 (1.7% rate)
Antibiotic Claims
153

Patient Demographics

Average Patient Age
74.5 years
Avg HCC Risk Score
1.11
Gender Split
65% female / 35% male
Age Distribution
<65: 50, 65-74: 165, 75-84: 146, 85+: 73

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
315
Levothyroxine Sodium
293
Amlodipine Besylate
212
Lisinopril
170
Furosemide
161
Rosuvastatin Calcium
158
Pantoprazole Sodium
152
Metoprolol Succinate
125
Simvastatin
123
Metformin Hcl
105

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

Gerontology Nurse Practitioner Overview

How CHRISTINA RIZOULIS, CRNP fits within the Gerontology Nurse Practitioner landscape nationally.

9,625
Gerontology Nurse Practitioner Providers in US
54
States with Gerontology Nurse Practitioner
1,283
Avg Claims per Provider

CHRISTINA RIZOULIS, CRNP's 5,257 claims are above the specialty average of 1,283.

Nearby Gerontology Nurse Practitioner Providers in Maryland

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

Compare Gerontology Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is CHRISTINA RIZOULIS, CRNP's specialty?
CHRISTINA RIZOULIS, CRNP specializes in Gerontology Nurse Practitioner and practices in WESTMINSTER, Maryland. Credentials: CRNP.
How much does CHRISTINA RIZOULIS, CRNP prescribe under Medicare Part D?
In 2023, CHRISTINA RIZOULIS, CRNP wrote 5,257 Medicare Part D claims totaling $537K in drug costs for 434 beneficiaries.
Where is CHRISTINA RIZOULIS, CRNP located?
CHRISTINA RIZOULIS, CRNP is located at 200 MEMORIAL AVE, WESTMINSTER, MD, 21157. Phone: (410) 848-3000.
What is CHRISTINA RIZOULIS, CRNP's NPI number?
CHRISTINA RIZOULIS, CRNP's National Provider Identifier (NPI) is 1225458672, issued on 04/24/2014.
Does CHRISTINA RIZOULIS, CRNP prescribe more brand-name or generic drugs?
CHRISTINA RIZOULIS, CRNP's prescribing is 11% brand-name and 89% generic drugs by claim count, with $433K in brand drug costs.
Does CHRISTINA RIZOULIS, CRNP prescribe opioids?
Yes, CHRISTINA RIZOULIS, CRNP had 87 opioid claims in 2023 with an opioid prescribing rate of 1.7%.
How many Gerontology Nurse Practitioner providers are there in the US?
There are 9,625 Gerontology Nurse Practitioner providers across 54 states in the US. The average Gerontology Nurse Practitioner provider writes 1,283 Medicare Part D claims per year.
What drugs does CHRISTINA RIZOULIS, CRNP prescribe most often?
Based on 2023 Medicare Part D data, CHRISTINA RIZOULIS, CRNP's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHRISTINA RIZOULIS, CRNP accept Medicare?
CHRISTINA RIZOULIS, CRNP appears in CMS Medicare data with 5,257 Part D claims and 434 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHRISTINA RIZOULIS, CRNP's credentials?
CHRISTINA RIZOULIS, CRNP's NPI is 1225458672 with credentials CRNP. 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