NPI registry status
Active
2026 NPPES data Orthopaedic Surgery Physician NPI 1073621470 M.D.
Verify on CMS → Kourosh Shamlou, M.D.
Orthopaedic Surgery Physician in Downey, 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 25,775 in Orthopaedic Surgery 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
1K
Medicare Part D claims · 476 beneficiaries · Orthopaedic Surgery Physician avg: 324
MIPS score
0/100
▼ 83 pts below national avg 83.1 · Penalty band
Industry payments
$446.9
6 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Kourosh Shamlou, M.D. reported a CMS MIPS final score of 0/100 - below the 83.1 national average - and filed 1,482 Medicare Part D claims in 2023.
- 0/100
- MIPS score · -83 vs avg
- 1K
- Part D claims, 2023
- 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.
Kourosh Shamlou, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
0 0th percentile higher than 0% 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 Kourosh Shamlou, M.D. sits
This provider among orthopaedic surgery physician peers
Across the 8,194 orthopaedic surgery physician providers who report both Medicare Part D prescribing and a MIPS quality score, Kourosh Shamlou, M.D. writes more Part D claims than 96% of them and scores higher on MIPS quality than 0% - 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 orthopaedic surgery physician peer from a representative sample of 60; the gold marker is Kourosh Shamlou, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Kourosh Shamlou, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Kourosh Shamlou, M.D.?
Below national averagePrimary specialty
Orthopaedic Surgery Physician
Medicare Part D claims
1,482 357% vs specialty avg
MIPS final score
0/100 83.1 pts vs avg
Specialty distribution in California
How Orthopaedic Surgery Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Kourosh Shamlou, M.D.'s 2023 MIPS final score plotted against the Orthopaedic Surgery Physician national average
- MIPS Final Score
- 0/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Orthopaedic Surgery Physician) - 0/100 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).
Kourosh Shamlou, M.D. appears in the CMS NPPES registry as an Orthopaedic Surgery Physician provider holding M.D. credentials at 11411 BROOKSHIRE AVE, Downey, CA, 90241, with a listed phone of (562) 869-4421. NPI 1073621470 was issued on 08/26/2006.
Medicare Part D records for calendar year 2023 show 1,482 prescription claims written by this provider, covering 476 Medicare beneficiaries and totaling roughly $20K in drug spend, with an opioid prescribing rate of 27.3%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 0/100 for the 2023 performance year (Quality 0), compared with the national average of 83.1.
Orthopaedic Surgery Physician is a mid-sized specialty nationwide, with 25,775 enrolled providers across 56 states and an average of 324 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 | 1073621470 |
|---|---|
| Specialty | Orthopaedic Surgery Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 08/26/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
0
Final Score
Avg: 83.1
0
Quality
Reporting: Individual
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 Kourosh Shamlou, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$447
Largest payer
SPINEART USA 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 Kourosh Shamlou, M.D.. To verify Kourosh Shamlou, M.D.'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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,482
Total Claims
$20K
Total Drug Cost
476
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,555
- Total Day Supply
- 31,155
- Generic Drug Cost
- $20K
- Opioid Claims
- 404 (27.3% rate)
- Antibiotic Claims
- 125
Patient Demographics
- Average Patient Age
- 73.4 years
- Avg HCC Risk Score
- 1.57
- Gender Split
- 69% female / 31% male
- Age Distribution
- <65: 40, 65-74: 226, 75-84: 169, 85+: 41
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Kourosh Shamlou, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Diclofenac Sodium
Diclofenac Sodium
495 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
301 claims
- Mupirocin 145
Mupirocin
145 claims
- Meloxicam 103
Meloxicam
103 claims
- Cephalexin 76
Cephalexin
76 claims
- Ibuprofen 66
Ibuprofen
66 claims
- Tramadol Hcl 63
Tramadol Hcl
63 claims
- Acetaminophen-Code… 39
Acetaminophen-Codeine
39 claims
| Drug | Claims |
|---|---|
| Diclofenac Sodium | 495 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 301 |
| Mupirocin | 145 |
| Meloxicam | 103 |
| Cephalexin | 76 |
| Ibuprofen | 66 |
| Tramadol Hcl | 63 |
| Acetaminophen-Codeine Acetaminophen With Codeine | 39 |
| Amoxicillin | 27 |
| Naproxen | 24 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Orthopaedic Surgery Physician Overview
How Kourosh Shamlou, M.D. fits within the Orthopaedic Surgery Physician landscape nationally.
25,775
Orthopaedic Surgery Physician Providers in US
56
States with Orthopaedic Surgery Physician
324
Avg Claims per Provider
Kourosh Shamlou, M.D.'s 1,482 claims are above the specialty average of 324.
Nearby Orthopaedic Surgery Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Shamlou.
Dr. Karim Abdollahi
M.D.
Laguna Beach, CA
Dr. Douglas Abeles
MD
Castro Valley, CA
Dr. Anthony Abene
MD
San Jose, CA
Dr. Nicholas Abidi
MD
Capitola, CA
Dr. Joshua Acebo
MD
Palo Alto, CA
Compare Orthopaedic Surgery 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 Orthopaedic Surgery 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 Kourosh Shamlou, M.D.'s specialty? ▼
Kourosh Shamlou, M.D. specializes in Orthopaedic Surgery Physician and practices in Downey, California. Credentials: M.D..
How much does Kourosh Shamlou, M.D. prescribe under Medicare Part D? ▼
In 2023, Kourosh Shamlou, M.D. wrote 1,482 Medicare Part D claims totaling $20K in drug costs for 476 beneficiaries.
What is Kourosh Shamlou, M.D.'s Medicare quality score? ▼
Kourosh Shamlou, M.D. has a CMS MIPS Final Score of 0/100 (Quality: 0). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Kourosh Shamlou, M.D. located? ▼
Kourosh Shamlou, M.D. is located at 11411 BROOKSHIRE AVE, Downey, CA, 90241. Phone: (562) 869-4421.
What is Kourosh Shamlou, M.D.'s NPI number? ▼
Kourosh Shamlou, M.D.'s National Provider Identifier (NPI) is 1073621470, issued on 08/26/2006.
Does Kourosh Shamlou, M.D. prescribe opioids? ▼
Yes, Kourosh Shamlou, M.D. had 404 opioid claims in 2023 with an opioid prescribing rate of 27.3%.
How many Orthopaedic Surgery Physician providers are there in the US? ▼
There are 25,775 Orthopaedic Surgery Physician providers across 56 states in the US. The average Orthopaedic Surgery Physician provider writes 324 Medicare Part D claims per year.
What drugs does Kourosh Shamlou, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Kourosh Shamlou, M.D.'s most frequently prescribed drugs include Diclofenac Sodium, Hydrocodone-Acetaminophen, Mupirocin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kourosh Shamlou, M.D. accept Medicare? ▼
Kourosh Shamlou, M.D. appears in CMS Medicare data with 1,482 Part D claims and 476 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kourosh Shamlou, M.D.'s credentials? ▼
Kourosh Shamlou, M.D.'s NPI is 1073621470 with credentials M.D.. 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.
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.