NPI registry status
Active
2026 NPPES data Adult Health Nurse Practitioner NPI 1851480701 APRN
Verify on CMS → Christella Guzman, APRN
Adult Health Nurse Practitioner in Honolulu, Hawaii.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 29,811 in Adult Health Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
620
Medicare Part D claims · 199 beneficiaries · Adult Health Nurse Practitioner avg: 1K
Generic prescribing
74%
generic claims · 26% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
86.3/100
▲ 3 pts above national avg 83.5 · Above neutral
Industry payments
$1.1K
18 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Christella Guzman, APRN reported a CMS MIPS final score of 86.3/100 - above the 83.5 national average - and filed 620 Medicare Part D claims in 2024.
- 86.3/100
- MIPS score · +3 vs avg
- 620
- Part D claims, 2024
- 74%
- generic prescribing
- $1.1K
- 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.
Federal trust snapshot
What official records show about Christella Guzman, APRN
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1851480701), first enumerated 10/11/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 620 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 86.3/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Hospital affiliations
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$1.1K in reported industry payments (18 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1851480701 · Adult Health Nurse Practitioner
NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-INLINE · RX-LIGHT · BOOK-THIN · PHOTO-FINISH
- NPI-10 1851480701
- ENUM-LEGACY 2006
- TAX-MID 30K Adult Health
- MIPS-INLINE 86.3/100
- RX-LIGHT 620
- BOOK-THIN 67 in Hawaii
- PHOTO-FINISH Arlene Shaw · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Maria Clark-Harm…
Maria Clark-Harmon
86.2 MIPS pts
- Guzman · this pr…
Guzman · this provider
86.3 MIPS pts
- Arlene Shaw · hi…
Arlene Shaw
86.3 MIPS pts
- Melissa Dyal · n…
Melissa Dyal
86.3 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Christella Guzman, APRN's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
86 ≥ 49th percentile 49% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Christella Guzman, APRN sits
This provider among adult health nurse practitioner peers
Across the 4,201 adult health nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Christella Guzman, APRN writes more Part D claims than 60% of them and scores higher on MIPS quality than 50% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one adult health nurse practitioner peer from a representative sample of 60; the gold marker is Christella Guzman, APRN. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Christella Guzman, APRN?
High performer (top quartile)Primary specialty
Adult Health Nurse Practitioner
Medicare Part D claims
620 52% vs specialty avg
MIPS final score
86.3/100 2.8 pts vs avg
Specialty distribution in Hawaii
How Adult Health Nurse Practitioner compares to other specialties among Hawaii providers
Medicare quality performance, MIPS
Christella Guzman, APRN's 2023 MIPS final score plotted against the Adult Health Nurse Practitioner national average
- MIPS Final Score
- 86.3/100
- vs 83.5 national avg · 2023 performance year
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1851480701 |
|---|---|
| Specialty | Adult Health Nurse Practitioner |
| Credentials | APRN |
| Gender | Female |
| NPI Issued | 10/11/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
86.2746
Final Score
Measured-score avg: 83.5
82.8779
Quality
71.3709
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Christella Guzman, APRN 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.
Pali Momi Medical Center
★★★★☆ 4/5
Aiea, HI
Acute Care Hospitals
CMS CCN: 120026
Queens University Medical Group
Honolulu, HI
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 Christella Guzman, APRN. Source: openpaymentsdata.cms.gov.
Total received
$1.1K
Largest payer
ABIOMED
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 · Above average
Christella Guzman, APRN - brand share 26.0%
Adult Health Nurse Practitioner average
26% brand-name claims vs 74% generic, on 620 2024 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 2024.
620
Total Claims
$229K
Total Drug Cost
199
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,682.9
- Total Day Supply
- 49,994
- Brand vs Generic
- 26% brand / 74% generic
- Brand Drug Cost
- $218K
- Generic Drug Cost
- $11K
Patient Demographics
- Average Patient Age
- 73.8 years
- Avg HCC Risk Score
- 2.48
- Gender Split
- 33% female / 67% male
- Age Distribution
- <65: 22, 65-74: 73, 75-84: 83, 85+: 21
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Christella Guzman, APRN prescribes most
Top Medicare Part D drugs by claim count, 2024
- Clopidogrel
Clopidogrel
65 claims
- Metoprolol Succinate
Metoprolol Succinate
64 claims
- Atorvastatin Calcium
Atorvastatin Calcium
53 claims
- Jardiance
Jardiance
34 claims
- Eliquis
Eliquis
32 claims
- Amlodipine Besylate
Amlodipine Besylate
29 claims
- Brilinta
Brilinta
29 claims
- Carvedilol
Carvedilol
28 claims
| Drug | Claims |
|---|---|
| Clopidogrel Clopidogrel Bisulfate | 65 |
| Metoprolol Succinate | 64 |
| Atorvastatin Calcium | 53 |
| Jardiance Empagliflozin | 34 |
| Eliquis Apixaban | 32 |
| Amlodipine Besylate | 29 |
| Brilinta Ticagrelor | 29 |
| Carvedilol | 28 |
| Furosemide | 27 |
| Losartan Potassium | 26 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Adult Health Nurse Practitioner Overview
How Christella Guzman, APRN fits within the Adult Health Nurse Practitioner landscape nationally.
29,811
Adult Health Nurse Practitioner Providers in US
55
States with Adult Health Nurse Practitioner
1,291
Avg Claims per Provider
Christella Guzman, APRN's 620 claims are below the specialty average of 1,291.
Nationwide Adult Health Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Guzman, both outside Hawaii so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (86.3 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Adult Health Nurse Practitioner Providers in Hawaii
Other clinicians with the same primary specialty enrolled in Hawaii, drawn from the same CMS NPPES roster as Guzman.
One of 67 Adult Health Nurse Practitioner providers enrolled in Hawaii, 5 are shown here.
Mary Margaret Baker
MSN, MHS, RNC, FNP
Kihei, HI
Mandi Benton
APRN, FNP-BC
Honolulu, HI
Clare Brady
ARNP
Honolulu, HI
Haylee Chung
APRN
Hilo, HI
Gayle Crosley
APRN-RX
Hilo, HI
Compare Adult Health Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Christella Guzman, APRN's specialty? ▼
Christella Guzman, APRN specializes in Adult Health Nurse Practitioner and practices in Honolulu, Hawaii. Credentials: APRN.
How much does Christella Guzman, APRN prescribe under Medicare Part D? ▼
In 2024, Christella Guzman, APRN wrote 620 Medicare Part D claims totaling $229K in drug costs for 199 beneficiaries.
What is Christella Guzman, APRN's Medicare quality score? ▼
Christella Guzman, APRN has a CMS MIPS Final Score of 86.3/100 (Quality: 82.9, Cost: 71.4). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Christella Guzman, APRN located? ▼
Christella Guzman, APRN is located at 932 WARD AVE FL 6, Honolulu, HI, 96814. Phone: (808) 535-5555.
What is Christella Guzman, APRN's NPI number? ▼
Christella Guzman, APRN's National Provider Identifier (NPI) is 1851480701, issued on 10/11/2006.
Does Christella Guzman, APRN prescribe more brand-name or generic drugs? ▼
Christella Guzman, APRN's prescribing is 26% brand-name and 74% generic drugs by claim count, with $218K in brand drug costs.
How many Adult Health Nurse Practitioner providers are there in the US? ▼
There are 29,811 Adult Health Nurse Practitioner providers across 55 states in the US. The average Adult Health Nurse Practitioner provider writes 1,291 Medicare Part D claims per year.
What drugs does Christella Guzman, APRN prescribe most often? ▼
Based on 2024 Medicare Part D data, Christella Guzman, APRN's most frequently prescribed drugs include Clopidogrel, Metoprolol Succinate, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Christella Guzman, APRN accept Medicare? ▼
Christella Guzman, APRN appears in CMS Medicare data with 620 Part D claims and 199 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Christella Guzman, APRN's credentials? ▼
Christella Guzman, APRN's NPI is 1851480701 with credentials APRN. 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
View source datasets and methodology notes
- 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 (2024). 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.