NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1447705603 FNP
Verify on CMS → Kimberly Chang, FNP
Family Nurse Practitioner in Palo Alto, 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 210,832 in Family 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
1K
Medicare Part D claims · 89 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Kimberly Chang, FNP filed 1,080 Medicare Part D claims in 2023 as a Family Nurse Practitioner in Palo Alto, California, prescribing 86% generic.
- 1K
- Part D claims, 2023
- 86%
- generic prescribing
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.
Kimberly Chang, FNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,080 Top 24% higher than 76% of 1,370,886 prescribers
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 Kimberly Chang, FNP?
Quality data not reportedPrimary specialty
Family Nurse Practitioner
Medicare Part D claims
1,080 12% vs specialty avg
Specialty distribution in California
How Family 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 Family 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).
Kimberly Chang, FNP appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding FNP credentials at 795 EL CAMINO REAL, Palo Alto, CA, 94301, with a listed phone of (650) 653-5650. NPI 1447705603 was issued on 08/17/2016.
Medicare Part D records for calendar year 2023 show 1,080 prescription claims written by this provider, covering 89 Medicare beneficiaries and totaling roughly $77K in drug spend, split 14% brand-name and 86% generic by claim count, with an opioid prescribing rate of 1.0%.
Family Nurse Practitioner is a high-volume specialty nationwide, with 210,832 enrolled providers across 56 states and an average of 1,222 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
Provider Details
| NPI | 1447705603 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Credentials | FNP |
| Gender | Female |
| NPI Issued | 08/17/2016 |
Hospital and facility affiliations
Facilities where Kimberly Chang, FNP 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.
Sutter Bay Medical Foundation
Palo Alto, CA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Kimberly Chang, FNP. To verify Kimberly Chang, FNP'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
Kimberly Chang, FNP - brand share 14.0%
Family Nurse Practitioner average
14% brand-name claims vs 86% generic, on 1,080 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.
1,080
Total Claims
$77K
Total Drug Cost
89
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,105
- Total Day Supply
- 19,390
- Brand vs Generic
- 14% brand / 86% generic
- Brand Drug Cost
- $54K
- Generic Drug Cost
- $22K
- Opioid Claims
- 11 (1.0% rate)
Patient Demographics
- Average Patient Age
- 76.3 years
- Avg HCC Risk Score
- 3.68
- Gender Split
- 57% female / 43% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Kimberly Chang, FNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Gabapentin
Gabapentin
134 claims
- Tamsulosin Hcl
Tamsulosin Hcl
78 claims
- Mirtazapine
Mirtazapine
61 claims
- Metoprolol Succinate 48
Metoprolol Succinate
48 claims
- Potassium Chloride 46
Potassium Chloride
46 claims
- Duloxetine Hcl 44
Duloxetine Hcl
44 claims
- Atorvastatin Calcium 41
Atorvastatin Calcium
41 claims
- Eliquis 38
Eliquis
38 claims
| Drug | Claims |
|---|---|
| Gabapentin | 134 |
| Tamsulosin Hcl | 78 |
| Mirtazapine | 61 |
| Metoprolol Succinate | 48 |
| Potassium Chloride | 46 |
| Duloxetine Hcl | 44 |
| Atorvastatin Calcium | 41 |
| Eliquis Apixaban | 38 |
| Levothyroxine Sodium | 34 |
| Jardiance Empagliflozin | 33 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Nurse Practitioner Overview
How Kimberly Chang, FNP fits within the Family Nurse Practitioner landscape nationally.
210,832
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider
Kimberly Chang, FNP's 1,080 claims are below the specialty average of 1,222.
Nearby Family Nurse Practitioner Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Chang.
Dr. Danielle Aaroe
FAMILY NURSE PRACTIT
Oroville, CA
Joshua Aaron
Mission Hills, CA
Dr. Orly Aaron
NP
San Francisco, CA
Paris Gilbert Russ Aaron
Sacramento, CA
Dr. Alvin Joseph Abad
FNP-C
San Francisco, CA
Compare Family Nurse Practitioner nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Family Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Kimberly Chang, FNP's specialty? ▼
Kimberly Chang, FNP specializes in Family Nurse Practitioner and practices in Palo Alto, California. Credentials: FNP.
How much does Kimberly Chang, FNP prescribe under Medicare Part D? ▼
In 2023, Kimberly Chang, FNP wrote 1,080 Medicare Part D claims totaling $77K in drug costs for 89 beneficiaries.
Where is Kimberly Chang, FNP located? ▼
Kimberly Chang, FNP is located at 795 EL CAMINO REAL, Palo Alto, CA, 94301. Phone: (650) 653-5650.
What is Kimberly Chang, FNP's NPI number? ▼
Kimberly Chang, FNP's National Provider Identifier (NPI) is 1447705603, issued on 08/17/2016.
Does Kimberly Chang, FNP prescribe more brand-name or generic drugs? ▼
Kimberly Chang, FNP's prescribing is 14% brand-name and 86% generic drugs by claim count, with $54K in brand drug costs.
Does Kimberly Chang, FNP prescribe opioids? ▼
Yes, Kimberly Chang, FNP had 11 opioid claims in 2023 with an opioid prescribing rate of 1.0%.
How many Family Nurse Practitioner providers are there in the US? ▼
There are 210,832 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does Kimberly Chang, FNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Kimberly Chang, FNP's most frequently prescribed drugs include Gabapentin, Tamsulosin Hcl, Mirtazapine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kimberly Chang, FNP accept Medicare? ▼
Kimberly Chang, FNP appears in CMS Medicare data with 1,080 Part D claims and 89 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kimberly Chang, FNP's credentials? ▼
Kimberly Chang, FNP's NPI is 1447705603 with credentials FNP. 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 (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
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 May 2026.