NPI registry status
Active
2026 NPPES data Emergency Medicine Physician NPI 1154439669 MD
Verify on CMS → Andrea Harris, MD
Emergency Medicine Physician in Grass Valley, 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 64,463 in Emergency Medicine 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
231
Medicare Part D claims · 159 beneficiaries · Emergency Medicine Physician avg: 352
Generic prescribing
77%
generic claims · 19% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
96.5/100
▲ 13 pts above national avg 83.1 · Exceptional
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Andrea Harris, MD reported a CMS MIPS final score of 96.5/100 - above the 83.1 national average - and filed 231 Medicare Part D claims in 2023.
- 96.5/100
- MIPS score · +13 vs avg
- 231
- 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.
Andrea Harris, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
97 Top 17% higher than 83% 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 Andrea Harris, MD sits
This provider among emergency medicine physician peers
Across the 14,967 emergency medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Andrea Harris, MD writes more Part D claims than 67% of them and scores higher on MIPS quality than 81% - placing this provider in the high-volume, high-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 emergency medicine physician peer from a representative sample of 60; the gold marker is Andrea Harris, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Andrea Harris, MD 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 Andrea Harris, MD?
High performer (top quartile)Primary specialty
Emergency Medicine Physician
Medicare Part D claims
231 34% vs specialty avg
MIPS final score
96.5/100 13.4 pts vs avg
Specialty distribution in California
How Emergency Medicine Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Andrea Harris, MD's 2023 MIPS final score plotted against the Emergency Medicine Physician national average
- MIPS Final Score
- 96.5/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Emergency Medicine Physician) - 96.5/100 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).
Andrea Harris, MD appears in the CMS NPPES registry as an Emergency Medicine Physician provider holding MD credentials at 107 MARGARET LN, Grass Valley, CA, 95945, with a listed phone of (530) 274-9623. NPI 1154439669 was issued on 08/25/2006.
Medicare Part D records for calendar year 2023 show 231 prescription claims written by this provider, covering 159 Medicare beneficiaries and totaling roughly $9K in drug spend, split 19% brand-name and 77% generic by claim count, with an opioid prescribing rate of 6.5%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 96.5/100 for the 2023 performance year (Quality 80.3), compared with the national average of 83.1.
Emergency Medicine Physician is a high-volume specialty nationwide, with 64,463 enrolled providers across 56 states and an average of 352 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 | 1154439669 |
|---|---|
| Specialty | Emergency Medicine Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 08/25/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
96.5085
Final Score
Avg: 83.1
80.342
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Andrea Harris, MD 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.
Dignity Health Medical Foundation
Grass Valley, 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 Andrea Harris, MD. To verify Andrea Harris, MD'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
Andrea Harris, MD - brand share 19.0%
Emergency Medicine Physician average
19% brand-name claims vs 77% generic, on 231 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.
231
Total Claims
$9K
Total Drug Cost
159
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 243
- Total Day Supply
- 3,238
- Brand vs Generic
- 19% brand / 77% generic
- Brand Drug Cost
- $6K
- Generic Drug Cost
- $3K
- Opioid Claims
- 15 (6.5% rate)
- Antibiotic Claims
- 87
Patient Demographics
- Average Patient Age
- 74.6 years
- Avg HCC Risk Score
- 0.98
- Gender Split
- 65% female / 35% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Andrea Harris, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Cephalexin
Cephalexin
30 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
27 claims
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
19 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
15 claims
- Nitrofurantoin Mon…
Nitrofurantoin Mono-Macro
14 claims
- Prednisone
Prednisone
14 claims
| Drug | Claims |
|---|---|
| Cephalexin | 30 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 27 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 19 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 15 |
| Nitrofurantoin Mono-Macro Nitrofurantoin Monohyd/M-Cryst | 14 |
| Prednisone | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Emergency Medicine Physician Overview
How Andrea Harris, MD fits within the Emergency Medicine Physician landscape nationally.
64,463
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider
Andrea Harris, MD's 231 claims are below the specialty average of 352.
Nearby Emergency Medicine Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Harris.
Dr. Cooper Aakhus
MD
Stanford, CA
Dr. Pyra Aarden
MD
Martinez, CA
Dr. Neal Aaron
D.O.
Encinitas, CA
Eric Aaserude
Walnut Creek, CA
Dr. Nader Abas
MD
Barstow, CA
Compare Emergency Medicine 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 Emergency Medicine 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 Andrea Harris, MD's specialty? ▼
Andrea Harris, MD specializes in Emergency Medicine Physician and practices in Grass Valley, California. Credentials: MD.
How much does Andrea Harris, MD prescribe under Medicare Part D? ▼
In 2023, Andrea Harris, MD wrote 231 Medicare Part D claims totaling $9K in drug costs for 159 beneficiaries.
What is Andrea Harris, MD's Medicare quality score? ▼
Andrea Harris, MD has a CMS MIPS Final Score of 96.5/100 (Quality: 80.3). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Andrea Harris, MD located? ▼
Andrea Harris, MD is located at 107 MARGARET LN, Grass Valley, CA, 95945. Phone: (530) 274-9623.
What is Andrea Harris, MD's NPI number? ▼
Andrea Harris, MD's National Provider Identifier (NPI) is 1154439669, issued on 08/25/2006.
Does Andrea Harris, MD prescribe more brand-name or generic drugs? ▼
Andrea Harris, MD's prescribing is 19% brand-name and 77% generic drugs by claim count, with $6K in brand drug costs.
Does Andrea Harris, MD prescribe opioids? ▼
Yes, Andrea Harris, MD had 15 opioid claims in 2023 with an opioid prescribing rate of 6.5%.
How many Emergency Medicine Physician providers are there in the US? ▼
There are 64,463 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does Andrea Harris, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Andrea Harris, MD's most frequently prescribed drugs include Cephalexin, Albuterol Sulfate Hfa, Amoxicillin-Clavulanate Potass. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Andrea Harris, MD accept Medicare? ▼
Andrea Harris, MD appears in CMS Medicare data with 231 Part D claims and 159 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Andrea Harris, MD's credentials? ▼
Andrea Harris, MD's NPI is 1154439669 with credentials MD. 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
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.