NPI registry status
Active
2026 NPPES data Clinical Neurophysiology Physician NPI 1730110529 D.O.
Verify on CMS → Amy Nielsen, D.O.
Clinical Neurophysiology Physician in La Jolla, 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 639 in Clinical Neurophysiology Physician, 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 · 281 beneficiaries · Clinical Neurophysiology Physician avg: 2K
Generic prescribing
77%
generic claims · 23% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
78.8/100
▼ 4 pts below national avg 83.1 · Above neutral
Industry payments
$3.6K
171 payments · CMS Open Payments (Sunshine Act)
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
Amy Nielsen, D.O. reported a CMS MIPS final score of 78.8/100 - below the 83.1 national average - and filed 1,684 Medicare Part D claims in 2023.
- 78.8/100
- MIPS score · -4 vs avg
- 2K
- Part D claims, 2023
- 77%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Amy Nielsen, D.O.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
79 27th percentile higher than 27% of 477,587 scored providers
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
Where Amy Nielsen, D.O. sits
This provider among clinical neurophysiology physician peers
Across the 187 clinical neurophysiology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Amy Nielsen, D.O. writes more Part D claims than 61% of them and scores higher on MIPS quality than 34% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one clinical neurophysiology physician peer from a representative sample of 60; the gold marker is Amy Nielsen, D.O.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Amy Nielsen, D.O. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Amy Nielsen, D.O.?
Near national averagePrimary specialty
Clinical Neurophysiology Physician
Medicare Part D claims
1,684 11% vs specialty avg
MIPS final score
78.8/100 4.3 pts vs avg
Specialty distribution in California
How Clinical Neurophysiology Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Amy Nielsen, D.O.'s 2023 MIPS final score plotted against the Clinical Neurophysiology Physician national average
- MIPS Final Score
- 78.8/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Clinical Neurophysiology Physician) - 78.8/100 vs national avg 83.1
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).
Amy Nielsen, D.O. appears in the CMS NPPES registry as a Clinical Neurophysiology Physician provider holding D.O. credentials at 9850 GENESEE AVE STE 530, La Jolla, CA, 92037, with a listed phone of (760) 631-3000. NPI 1730110529 was issued on 07/06/2006.
Medicare Part D records for calendar year 2023 show 1,684 prescription claims written by this provider, covering 281 Medicare beneficiaries and totaling roughly $1.1 million in drug spend, split 23% brand-name and 77% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 78.8/100 for the 2023 performance year, compared with the national average of 83.1.
Clinical Neurophysiology Physician is a narrow specialty nationwide, with 639 enrolled providers across 50 states and an average of 1,523 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 | 1730110529 |
|---|---|
| Specialty | Clinical Neurophysiology Physician |
| Credentials | D.O. |
| Gender | Female |
| NPI Issued | 07/06/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
78.7985
Final Score
Avg: 83.1
61.7553
Cost
80
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Amy Nielsen, D.O. 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.
North County Neurology Associates Medical Group
Carlsbad, 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).
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 Amy Nielsen, D.O.. Source: openpaymentsdata.cms.gov.
Total received
$3.6K
Largest payer
UCB, 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 Amy Nielsen, D.O.. To verify Amy Nielsen, D.O.'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
Amy Nielsen, D.O. - brand share 23.0%
Clinical Neurophysiology Physician average
23% brand-name claims vs 77% generic, on 1,684 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.
1,684
Total Claims
$1.1M
Total Drug Cost
281
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,392
- Total Day Supply
- 69,087
- Brand vs Generic
- 23% brand / 77% generic
- Brand Drug Cost
- $935K
- Generic Drug Cost
- $131K
Patient Demographics
- Average Patient Age
- 71.1 years
- Avg HCC Risk Score
- 1.53
- Gender Split
- 65% female / 35% male
- Age Distribution
- <65: 50, 65-74: 125, 75-84: 76, 85+: 30
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Amy Nielsen, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Memantine Hcl
Memantine Hcl
258 claims
- Gabapentin
Gabapentin
145 claims
- Donepezil Hcl
Donepezil Hcl
138 claims
- Levetiracetam 103
Levetiracetam
103 claims
- Aimovig Autoinjector 85
Aimovig Autoinjector
85 claims
- Emgality Pen 78
Emgality Pen
78 claims
- Nurtec Odt 62
Nurtec Odt
62 claims
- Rizatriptan 61
Rizatriptan
61 claims
| Drug | Claims |
|---|---|
| Memantine Hcl | 258 |
| Gabapentin | 145 |
| Donepezil Hcl | 138 |
| Levetiracetam | 103 |
| Aimovig Autoinjector Erenumab-Aooe | 85 |
| Emgality Pen Galcanezumab-Gnlm | 78 |
| Nurtec Odt Rimegepant Sulfate | 62 |
| Rizatriptan Rizatriptan Benzoate | 61 |
| Amitriptyline Hcl | 54 |
| Ubrelvy Ubrogepant | 44 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Clinical Neurophysiology Physician Overview
How Amy Nielsen, D.O. fits within the Clinical Neurophysiology Physician landscape nationally.
639
Clinical Neurophysiology Physician Providers in US
50
States with Clinical Neurophysiology Physician
1,523
Avg Claims per Provider
Amy Nielsen, D.O.'s 1,684 claims are above the specialty average of 1,523.
Nearby Clinical Neurophysiology Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Nielsen.
Saheil Aboutalib
Long Beach, CA
Dr. Cameron Adams
M.D.
West Hollywood, CA
Dr. Mohsin Ansari
M.D.
Roseville, CA
Dr. Rajan Preet Arora
MD
Riverside, CA
Sami Bajwa
Fresno, CA
Compare Clinical Neurophysiology Physician 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 Clinical Neurophysiology Physician 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 Amy Nielsen, D.O.'s specialty? ▼
Amy Nielsen, D.O. specializes in Clinical Neurophysiology Physician and practices in La Jolla, California. Credentials: D.O..
How much does Amy Nielsen, D.O. prescribe under Medicare Part D? ▼
In 2023, Amy Nielsen, D.O. wrote 1,684 Medicare Part D claims totaling $1.1M in drug costs for 281 beneficiaries.
What is Amy Nielsen, D.O.'s Medicare quality score? ▼
Amy Nielsen, D.O. has a CMS MIPS Final Score of 78.8/100, Cost: 61.8. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Amy Nielsen, D.O. located? ▼
Amy Nielsen, D.O. is located at 9850 GENESEE AVE STE 530, La Jolla, CA, 92037. Phone: (760) 631-3000.
What is Amy Nielsen, D.O.'s NPI number? ▼
Amy Nielsen, D.O.'s National Provider Identifier (NPI) is 1730110529, issued on 07/06/2006.
Does Amy Nielsen, D.O. prescribe more brand-name or generic drugs? ▼
Amy Nielsen, D.O.'s prescribing is 23% brand-name and 77% generic drugs by claim count, with $935K in brand drug costs.
How many Clinical Neurophysiology Physician providers are there in the US? ▼
There are 639 Clinical Neurophysiology Physician providers across 50 states in the US. The average Clinical Neurophysiology Physician provider writes 1,523 Medicare Part D claims per year.
What drugs does Amy Nielsen, D.O. prescribe most often? ▼
Based on 2023 Medicare Part D data, Amy Nielsen, D.O.'s most frequently prescribed drugs include Memantine Hcl, Gabapentin, Donepezil Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Amy Nielsen, D.O. accept Medicare? ▼
Amy Nielsen, D.O. appears in CMS Medicare data with 1,684 Part D claims and 281 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Amy Nielsen, D.O.'s credentials? ▼
Amy Nielsen, D.O.'s NPI is 1730110529 with credentials D.O.. 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.
- 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
Compiled from official public sources by the PlainDoctor editorial team.