NPI registry status
Active
2026 NPPES data Dermatopathology Physician NPI 1043445554 MD
Verify on CMS → Mahsa Abdollahi, MD
Dermatopathology Physician in Laguna Hills, 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 570 in Dermatopathology 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
569
Medicare Part D claims · 270 beneficiaries · Dermatopathology Physician avg: 650
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
▼ 8 pts below national avg 83.1 · Above neutral
Industry payments
$1.1K
33 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
Mahsa Abdollahi, MD reported a CMS MIPS final score of 75/100 - below the 83.1 national average - and filed 569 Medicare Part D claims in 2023.
- 75/100
- MIPS score · -8 vs avg
- 569
- Part D claims, 2023
- 94%
- 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.
Mahsa Abdollahi, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
75 15th percentile higher than 15% 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 Mahsa Abdollahi, MD sits
This provider among dermatopathology physician peers
Across the 210 dermatopathology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Mahsa Abdollahi, MD writes more Part D claims than 49% of them and scores higher on MIPS quality than 17% - placing this provider in the lower-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 dermatopathology physician peer from a representative sample of 60; the gold marker is Mahsa Abdollahi, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Mahsa Abdollahi, 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 Mahsa Abdollahi, MD?
Below national averagePrimary specialty
Dermatopathology Physician
Medicare Part D claims
569 12% vs specialty avg
MIPS final score
75/100 8.1 pts vs avg
Specialty distribution in California
How Dermatopathology Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Mahsa Abdollahi, MD's 2023 MIPS final score plotted against the Dermatopathology Physician national average
- MIPS Final Score
- 75/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Dermatopathology Physician) - 75/100 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).
Mahsa Abdollahi, MD appears in the CMS NPPES registry as a Dermatopathology Physician provider holding MD credentials at 25200 LA PAZ RD STE 210, Laguna Hills, CA, 92653, with a listed phone of (949) 464-5770. NPI 1043445554 was issued on 05/28/2009.
Medicare Part D records for calendar year 2023 show 569 prescription claims written by this provider, covering 270 Medicare beneficiaries and totaling roughly $209K in drug spend, split 6% brand-name and 94% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 75/100 for the 2023 performance year, compared with the national average of 83.1.
Dermatopathology Physician is a narrow specialty nationwide, with 570 enrolled providers across 48 states and an average of 650 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 | 1043445554 |
|---|---|
| Specialty | Dermatopathology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 05/28/2009 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
Avg: 83.1
Reporting: Group practice
Hospital and facility affiliations
Facilities where Mahsa Abdollahi, 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.
Kristen Aguirre MD Inc
Laguna Hills, 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 Mahsa Abdollahi, MD. Source: openpaymentsdata.cms.gov.
Total received
$1.1K
Largest payer
Dermavant Sciences, 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 Mahsa Abdollahi, MD. To verify Mahsa Abdollahi, 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 · Generic-heavy
Mahsa Abdollahi, MD - brand share 6.0%
Dermatopathology Physician average
6% brand-name claims vs 94% generic, on 569 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.
569
Total Claims
$209K
Total Drug Cost
270
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 622
- Total Day Supply
- 14,609
- Brand vs Generic
- 6% brand / 94% generic
- Brand Drug Cost
- $189K
- Generic Drug Cost
- $20K
- Antibiotic Claims
- 46
Patient Demographics
- Average Patient Age
- 75.7 years
- Avg HCC Risk Score
- 0.91
- 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 Mahsa Abdollahi, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Mupirocin
Mupirocin
79 claims
- Ketoconazole
Ketoconazole
78 claims
- Triamcinolone Acet…
Triamcinolone Acetonide
58 claims
- Fluorouracil
Fluorouracil
52 claims
- Clobetasol Propion…
Clobetasol Propionate
45 claims
- Valacyclovir
Valacyclovir
32 claims
- Fluocinonide 28
Fluocinonide
28 claims
- Doxycycline Hyclate 19
Doxycycline Hyclate
19 claims
| Drug | Claims |
|---|---|
| Mupirocin | 79 |
| Ketoconazole | 78 |
| Triamcinolone Acetonide | 58 |
| Fluorouracil | 52 |
| Clobetasol Propionate | 45 |
| Valacyclovir Valacyclovir Hcl | 32 |
| Fluocinonide | 28 |
| Doxycycline Hyclate | 19 |
| Cephalexin | 18 |
| Desonide | 17 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Dermatopathology Physician Overview
How Mahsa Abdollahi, MD fits within the Dermatopathology Physician landscape nationally.
570
Dermatopathology Physician Providers in US
48
States with Dermatopathology Physician
650
Avg Claims per Provider
Mahsa Abdollahi, MD's 569 claims are below the specialty average of 650.
Nearby Dermatopathology Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Abdollahi.
Dr. Behnam Abdollahi
MD
Anaheim, CA
Dr. Ronnie Abraham
MD
San Luis Obispo, CA
Dr. Pamela Aubert
M.D.
Panorama City, CA
Dr. Elizabeth Bailey
MD
Stanford, CA
Dr. David Barnette
MD
Carlsbad, CA
Compare Dermatopathology 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 Dermatopathology 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 Mahsa Abdollahi, MD's specialty? ▼
Mahsa Abdollahi, MD specializes in Dermatopathology Physician and practices in Laguna Hills, California. Credentials: MD.
How much does Mahsa Abdollahi, MD prescribe under Medicare Part D? ▼
In 2023, Mahsa Abdollahi, MD wrote 569 Medicare Part D claims totaling $209K in drug costs for 270 beneficiaries.
What is Mahsa Abdollahi, MD's Medicare quality score? ▼
Mahsa Abdollahi, MD has a CMS MIPS Final Score of 75/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Mahsa Abdollahi, MD located? ▼
Mahsa Abdollahi, MD is located at 25200 LA PAZ RD STE 210, Laguna Hills, CA, 92653. Phone: (949) 464-5770.
What is Mahsa Abdollahi, MD's NPI number? ▼
Mahsa Abdollahi, MD's National Provider Identifier (NPI) is 1043445554, issued on 05/28/2009.
Does Mahsa Abdollahi, MD prescribe more brand-name or generic drugs? ▼
Mahsa Abdollahi, MD's prescribing is 6% brand-name and 94% generic drugs by claim count, with $189K in brand drug costs.
How many Dermatopathology Physician providers are there in the US? ▼
There are 570 Dermatopathology Physician providers across 48 states in the US. The average Dermatopathology Physician provider writes 650 Medicare Part D claims per year.
What drugs does Mahsa Abdollahi, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Mahsa Abdollahi, MD's most frequently prescribed drugs include Mupirocin, Ketoconazole, Triamcinolone Acetonide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mahsa Abdollahi, MD accept Medicare? ▼
Mahsa Abdollahi, MD appears in CMS Medicare data with 569 Part D claims and 270 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mahsa Abdollahi, MD's credentials? ▼
Mahsa Abdollahi, MD's NPI is 1043445554 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
Compiled from official public sources by the PlainDoctor editorial team.