2026 NPPES data Critical Care Medicine Registered Nurse NPI 1639817976 AG-ACNP
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STACY HOSENFELD, AG-ACNP

Critical Care Medicine Registered Nurse in CHARLOTTESVILLE, Virginia. 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
92
Medicare Part D claims · 35 beneficiaries · Critical Care Medicine Registered Nurse avg: 752
MIPS score
79.3949/100
▼ 4 pts below national avg 83.1 · [object Object]

What the federal data shows

STACY HOSENFELD, AG-ACNP reported a CMS MIPS final score of 79.3949/100 — below the 83.1 national average — and filed 92 Medicare Part D claims in 2023.

79.3949/100
MIPS score · -4 vs avg
92
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.

STACY HOSENFELD, AG-ACNP's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

79 30th percentile higher than 30% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

What does the federal data show about STACY HOSENFELD, AG-ACNP?

Near national average

NPI registry status

Active

Issued 05/26/2022

NPI 1639817976

Primary specialty

Critical Care Medicine Registered Nurse

Mid-sized

6,529 US NPIs in this specialty

Medicare Part D claims

92 88% vs specialty avg

2023 prescription claims

Specialty avg: 752

MIPS final score

79.3949/100 3.7050999999999874% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Virginia

How Critical Care Medicine Registered Nurse compares to other specialties among Virginia providers

Virginia providers

Critical Care Medicine Registered Nurse share within Virginia

1. Critical Care Medicine Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Critical Care Medicine Registered Nurse share within Virginia

Medicare quality performance — MIPS

STACY HOSENFELD, AG-ACNP's 2023 MIPS final score plotted against the Critical Care Medicine Registered Nurse national average

Near national average
MIPS Final Score
79.3949/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Critical Care Medicine Registered Nurse) — 79.3949/100 vs national avg 83.1

0%100%National avg83%79.4%
MIPS final score (Critical Care Medicine Registered Nurse) — 79.3949/100 vs national avg 83.1

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).

STACY HOSENFELD, AG-ACNP appears in the CMS NPPES registry as a Critical Care Medicine Registered Nurse provider holding AG-ACNP credentials at 1221 LEE STREET, CHARLOTTESVILLE, VA, 22908, with a listed phone of (434) 243-1000. NPI 1639817976 was issued on 05/26/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HOSENFELD 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 92 prescription claims written by this provider, covering 35 Medicare beneficiaries and totaling roughly $8K in drug spend, with an opioid prescribing rate of 12.0%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.3949/100 for the 2023 performance year (Quality 73.6607, Cost 57.6556), compared with the national average of 83.1.

Critical Care Medicine Registered Nurse is a mid-sized specialty nationwide, with 6,529 enrolled providers across 53 states and an average of 752 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

1221 LEE STREET
CHARLOTTESVILLE, VA 22908

Provider Details

NPI 1639817976
Specialty Critical Care Medicine Registered Nurse
Credentials AG-ACNP
Gender Female
NPI Issued 05/26/2022

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

79.3949
Final Score
Avg: 83.1
73.6607
Quality
57.6556
Cost
100
Promoting Interoperability

Reporting: Group practice

Medicare Part D Prescribing Data

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

92
Total Claims
$8K
Total Drug Cost
35
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
122
Total Day Supply
2,698
Generic Drug Cost
$2K
Opioid Claims
11 (12.0% rate)
Antibiotic Claims
12

Patient Demographics

Average Patient Age
71.1 years
Avg HCC Risk Score
1.82
Gender Split
49% female / 51% 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
15

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

Critical Care Medicine Registered Nurse Overview

How STACY HOSENFELD, AG-ACNP fits within the Critical Care Medicine Registered Nurse landscape nationally.

6,529
Critical Care Medicine Registered Nurse Providers in US
53
States with Critical Care Medicine Registered Nurse
752
Avg Claims per Provider

STACY HOSENFELD, AG-ACNP's 92 claims are below the specialty average of 752.

Nearby Critical Care Medicine Registered Nurse Providers in Virginia

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

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

Frequently Asked Questions

What is STACY HOSENFELD, AG-ACNP's specialty?
STACY HOSENFELD, AG-ACNP specializes in Critical Care Medicine Registered Nurse and practices in CHARLOTTESVILLE, Virginia. Credentials: AG-ACNP.
How much does STACY HOSENFELD, AG-ACNP prescribe under Medicare Part D?
In 2023, STACY HOSENFELD, AG-ACNP wrote 92 Medicare Part D claims totaling $8K in drug costs for 35 beneficiaries.
What is STACY HOSENFELD, AG-ACNP's Medicare quality score?
STACY HOSENFELD, AG-ACNP has a CMS MIPS Final Score of 79.3949/100 (Quality: 73.6607, Cost: 57.6556). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is STACY HOSENFELD, AG-ACNP located?
STACY HOSENFELD, AG-ACNP is located at 1221 LEE STREET, CHARLOTTESVILLE, VA, 22908. Phone: (434) 243-1000.
What is STACY HOSENFELD, AG-ACNP's NPI number?
STACY HOSENFELD, AG-ACNP's National Provider Identifier (NPI) is 1639817976, issued on 05/26/2022.
Does STACY HOSENFELD, AG-ACNP prescribe opioids?
Yes, STACY HOSENFELD, AG-ACNP had 11 opioid claims in 2023 with an opioid prescribing rate of 12.0%.
How many Critical Care Medicine Registered Nurse providers are there in the US?
There are 6,529 Critical Care Medicine Registered Nurse providers across 53 states in the US. The average Critical Care Medicine Registered Nurse provider writes 752 Medicare Part D claims per year.
What drugs does STACY HOSENFELD, AG-ACNP prescribe most often?
Based on 2023 Medicare Part D data, STACY HOSENFELD, AG-ACNP'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 STACY HOSENFELD, AG-ACNP accept Medicare?
STACY HOSENFELD, AG-ACNP appears in CMS Medicare data with 92 Part D claims and 35 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify STACY HOSENFELD, AG-ACNP's credentials?
STACY HOSENFELD, AG-ACNP's NPI is 1639817976 with credentials AG-ACNP. 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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