NPI registry status
Active
2026 NPPES data Medical Physician Assistant NPI 1265681977
Verify on CMS → Cathleen Chandler-Eckhardt
Medical Physician Assistant in Watsonville, 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 40,580 in Medical Physician Assistant, 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 · 64 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
77%
generic claims · 22% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Cathleen Chandler-Eckhardt filed 1,188 Medicare Part D claims in 2023 as a Medical Physician Assistant in Watsonville, California, prescribing 77% generic.
- 1K
- Part D claims, 2023
- 77%
- 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.
Cathleen Chandler-Eckhardt's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,188 Top 23% higher than 77% 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 Cathleen Chandler-Eckhardt?
Quality data not reportedPrimary specialty
Medical Physician Assistant
Medicare Part D claims
1,188 10% vs specialty avg
Specialty distribution in California
How Medical Physician Assistant 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 Medical Physician Assistant. 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).
Cathleen Chandler-Eckhardt appears in the CMS NPPES registry as a Medical Physician Assistant provider at 204 E BEACH ST, Watsonville, CA, 95076, with a listed phone of (831) 728-0222. NPI 1265681977 was issued on 09/17/2008.
Medicare Part D records for calendar year 2023 show 1,188 prescription claims written by this provider, covering 64 Medicare beneficiaries and totaling roughly $191K in drug spend, split 22% brand-name and 77% generic by claim count.
Medical Physician Assistant is a mid-sized specialty nationwide, with 40,580 enrolled providers across 55 states and an average of 1,077 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 | 1265681977 |
|---|---|
| Specialty | Medical Physician Assistant |
| Gender | Female |
| NPI Issued | 09/17/2008 |
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 Cathleen Chandler-Eckhardt. To verify Cathleen Chandler-Eckhardt'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
Cathleen Chandler-Eckhardt - brand share 22.0%
Medical Physician Assistant average
22% brand-name claims vs 77% generic, on 1,188 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.
1,188
Total Claims
$191K
Total Drug Cost
64
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,243
- Total Day Supply
- 65,544
- Brand vs Generic
- 22% brand / 77% generic
- Brand Drug Cost
- $166K
- Generic Drug Cost
- $24K
Patient Demographics
- Average Patient Age
- 69.9 years
- Avg HCC Risk Score
- 1.20
- Gender Split
- 75% female / 25% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Cathleen Chandler-Eckhardt prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
99 claims
- Lisinopril
Lisinopril
81 claims
- Metformin Hcl
Metformin Hcl
70 claims
- Levothyroxine Sodium
Levothyroxine Sodium
48 claims
- Alendronate Sodium 39
Alendronate Sodium
39 claims
- Gabapentin 32
Gabapentin
32 claims
- Omeprazole 31
Omeprazole
31 claims
- Losartan Potassium 29
Losartan Potassium
29 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 99 |
| Lisinopril | 81 |
| Metformin Hcl | 70 |
| Levothyroxine Sodium | 48 |
| Alendronate Sodium | 39 |
| Gabapentin | 32 |
| Omeprazole | 31 |
| Losartan Potassium | 29 |
| Diclofenac Sodium | 28 |
| Hydrochlorothiazide | 26 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Medical Physician Assistant Overview
How Cathleen Chandler-Eckhardt fits within the Medical Physician Assistant landscape nationally.
40,580
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider
Cathleen Chandler-Eckhardt's 1,188 claims are above the specialty average of 1,077.
Nearby Medical Physician Assistant Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Chandler-Eckhardt.
Dr. Bridget Abajian
PA-C
Los Angeles, CA
Dr. Crispin Abbott
PHYSICIAN ASSISTANT
Thousand Oaks, CA
Dr. Abdol Hamid Abdali Hajiabadi
P.A.
Santa Ana, CA
Dr. Jilbert Abnoosian
PA
Lynwood, CA
Dr. Sakina Abowath
P.A.
Diamond Bar, CA
Compare Medical Physician Assistant 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 Medical Physician Assistant 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 Cathleen Chandler-Eckhardt's specialty? ▼
Cathleen Chandler-Eckhardt specializes in Medical Physician Assistant and practices in Watsonville, California.
How much does Cathleen Chandler-Eckhardt prescribe under Medicare Part D? ▼
In 2023, Cathleen Chandler-Eckhardt wrote 1,188 Medicare Part D claims totaling $191K in drug costs for 64 beneficiaries.
Where is Cathleen Chandler-Eckhardt located? ▼
Cathleen Chandler-Eckhardt is located at 204 E BEACH ST, Watsonville, CA, 95076. Phone: (831) 728-0222.
What is Cathleen Chandler-Eckhardt's NPI number? ▼
Cathleen Chandler-Eckhardt's National Provider Identifier (NPI) is 1265681977, issued on 09/17/2008.
Does Cathleen Chandler-Eckhardt prescribe more brand-name or generic drugs? ▼
Cathleen Chandler-Eckhardt's prescribing is 22% brand-name and 77% generic drugs by claim count, with $166K in brand drug costs.
How many Medical Physician Assistant providers are there in the US? ▼
There are 40,580 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
What drugs does Cathleen Chandler-Eckhardt prescribe most often? ▼
Based on 2023 Medicare Part D data, Cathleen Chandler-Eckhardt's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Cathleen Chandler-Eckhardt accept Medicare? ▼
Cathleen Chandler-Eckhardt appears in CMS Medicare data with 1,188 Part D claims and 64 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Cathleen Chandler-Eckhardt's credentials? ▼
Cathleen Chandler-Eckhardt's NPI is 1265681977. 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
Compiled from official public sources by the PlainDoctor editorial team.
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.