NPI registry status
Active
2026 NPPES data Adult Health Nurse Practitioner NPI 1205190618 C.R.N.P.
Verify on CMS → Kristen Duffy, C.R.N.P.
Adult Health Nurse Practitioner in Sacramento, California.
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
2K
Medicare Part D claims · 122 beneficiaries · Adult Health Nurse Practitioner avg: 1K
Generic prescribing
82%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$63.49
3 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Kristen Duffy, C.R.N.P. filed 1,988 Medicare Part D claims in 2024 as an Adult Health Nurse Practitioner in Sacramento, California, prescribing 82% generic.
- 2K
- Part D claims, 2024
- 82%
- generic prescribing
- $63.49
- industry payments (Sunshine Act)
- ≥83rd
- pct by Part D claim volume (lower-bound band)
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 Kristen Duffy, C.R.N.P.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1205190618), first enumerated 06/29/2012.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,988 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Industry payment transparency
$63.49 in reported industry payments (3 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Kristen Duffy, C.R.N.P.'s individual license status. Verify directly with the state medical board.
Source: MBC annual report 2023
- 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 1205190618 · Adult Health Nurse Practitioner
NPI-10 · ENUM-MID · TAX-MID · RX-MID · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1205190618
- ENUM-MID 2012
- TAX-MID 30K Adult Health
- RX-MID 1,988
- BOOK-LIGHT 1,472 in California
- PHOTO-ENUM Rose Gesaman · 2012
Kristen Duffy, C.R.N.P.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,988 ≥ 83rd percentile 83% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Kristen Duffy, C.R.N.P.?
Quality data not reportedPrimary specialty
Adult Health Nurse Practitioner
Medicare Part D claims
1,988 54% vs specialty avg
Specialty distribution in California
How Adult Health Nurse Practitioner compares to other specialties among California providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Adult Health Nurse Practitioner. Verify directly:
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 | 1205190618 |
|---|---|
| Specialty | Adult Health Nurse Practitioner |
| Credentials | C.R.N.P. |
| Gender | Female |
| NPI Issued | 06/29/2012 |
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 Kristen Duffy, C.R.N.P.. Source: openpaymentsdata.cms.gov.
Total received
$63
Largest payer
Teva Pharmaceuticals USA, Inc.
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.
License & disciplinary context - California MBC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 - they are NOT specific to Kristen Duffy, C.R.N.P.. To verify Kristen Duffy, C.R.N.P.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Kristen Duffy, C.R.N.P. - brand share 17.0%
Adult Health Nurse Practitioner average
17% brand-name claims vs 82% generic, on 1,988 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.
1,988
Total Claims
$160K
Total Drug Cost
122
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,995
- Total Day Supply
- 42,304
- Brand vs Generic
- 17% brand / 82% generic
- Brand Drug Cost
- $97K
- Generic Drug Cost
- $54K
- Opioid Claims
- 195 (9.8% rate)
- Antibiotic Claims
- 86
Patient Demographics
- Average Patient Age
- 77.0 years
- Avg HCC Risk Score
- 2.74
- Gender Split
- 67% female / 33% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Kristen Duffy, C.R.N.P. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Trazodone Hcl
Trazodone Hcl
145 claims
- Tramadol Hcl
Tramadol Hcl
68 claims
- Levothyroxine Sodium
Levothyroxine Sodium
60 claims
- Ipratropium-Albute…
Ipratropium-Albuterol
58 claims
- Pregabalin 54
Pregabalin
54 claims
- Duloxetine Hcl 52
Duloxetine Hcl
52 claims
- Amlodipine Besylate 48
Amlodipine Besylate
48 claims
- Olanzapine 45
Olanzapine
45 claims
| Drug | Claims |
|---|---|
| Trazodone Hcl | 145 |
| Tramadol Hcl | 68 |
| Levothyroxine Sodium | 60 |
| Ipratropium-Albuterol Ipratropium/Albuterol Sulfate | 58 |
| Pregabalin | 54 |
| Duloxetine Hcl | 52 |
| Amlodipine Besylate | 48 |
| Olanzapine | 45 |
| Gabapentin | 43 |
| Xtampza Er Oxycodone Myristate | 41 |
* 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 Kristen Duffy, C.R.N.P. 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
Kristen Duffy, C.R.N.P.'s 1,988 claims are above the specialty average of 1,291.
Nationwide Adult Health Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Duffy, both outside California so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2012)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Adult Health Nurse Practitioner Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Duffy.
One of 1,472 Adult Health Nurse Practitioner providers enrolled in California, 5 are shown here.
Joel Aandahl
NP
Vallejo, CA
Maria Katrina Abad
AGPCNP-BC
San Carlos, CA
Corey Abbott
N.P.
Claremont, CA
Michael Abney
FNP
Pleasanton, CA
Ilona Abramova
NP
West Hills, CA
Compare Adult Health Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Kristen Duffy, C.R.N.P.'s specialty? ▼
Kristen Duffy, C.R.N.P. specializes in Adult Health Nurse Practitioner and practices in Sacramento, California. Credentials: C.R.N.P..
How much does Kristen Duffy, C.R.N.P. prescribe under Medicare Part D? ▼
In 2024, Kristen Duffy, C.R.N.P. wrote 1,988 Medicare Part D claims totaling $160K in drug costs for 122 beneficiaries.
Where is Kristen Duffy, C.R.N.P. located? ▼
Kristen Duffy, C.R.N.P. is located at 3000 Q ST FL 3, Sacramento, CA, 95816. Phone: (916) 733-3333.
What is Kristen Duffy, C.R.N.P.'s NPI number? ▼
Kristen Duffy, C.R.N.P.'s National Provider Identifier (NPI) is 1205190618, issued on 06/29/2012.
Does Kristen Duffy, C.R.N.P. prescribe more brand-name or generic drugs? ▼
Kristen Duffy, C.R.N.P.'s prescribing is 17% brand-name and 82% generic drugs by claim count, with $97K in brand drug costs.
Does Kristen Duffy, C.R.N.P. prescribe opioids? ▼
Yes, Kristen Duffy, C.R.N.P. had 195 opioid claims in 2024 with an opioid prescribing rate of 9.8%.
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 Kristen Duffy, C.R.N.P. prescribe most often? ▼
Based on 2024 Medicare Part D data, Kristen Duffy, C.R.N.P.'s most frequently prescribed drugs include Trazodone Hcl, Tramadol Hcl, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kristen Duffy, C.R.N.P. accept Medicare? ▼
Kristen Duffy, C.R.N.P. appears in CMS Medicare data with 1,988 Part D claims and 122 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kristen Duffy, C.R.N.P.'s credentials? ▼
Kristen Duffy, C.R.N.P.'s NPI is 1205190618 with credentials C.R.N.P.. 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.
- 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.