NPI registry status
Active
2026 NPPES data Allergy & Immunology Physician NPI 1487725990 MD
Verify on CMS → Barzin Khalili, MD
Allergy & Immunology Physician in Portland, Oregon.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,390 in Allergy & Immunology 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
589
Medicare Part D claims · 110 beneficiaries · Allergy & Immunology Physician avg: 764
Generic prescribing
41%
generic claims · 59% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
97.8/100
▲ 15 pts above national avg 83.1 · Exceptional
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
Barzin Khalili, MD reported a CMS MIPS final score of 97.8/100 - above the 83.1 national average - and filed 589 Medicare Part D claims in 2023.
- 97.8/100
- MIPS score · +15 vs avg
- 589
- Part D claims, 2023
- 41%
- 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.
Barzin Khalili, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
98 Top 15% higher than 85% 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 Barzin Khalili, MD sits
This provider among allergy & immunology physician peers
Across the 740 allergy & immunology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Barzin Khalili, MD writes more Part D claims than 39% of them and scores higher on MIPS quality than 91% - placing this provider in the lower-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 allergy & immunology physician peer from a representative sample of 60; the gold marker is Barzin Khalili, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Barzin Khalili, 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 Barzin Khalili, MD?
High performer (top quartile)Primary specialty
Allergy & Immunology Physician
Medicare Part D claims
589 23% vs specialty avg
MIPS final score
97.8/100 14.7 pts vs avg
Specialty distribution in Oregon
How Allergy & Immunology Physician compares to other specialties among Oregon providers
Medicare quality performance, MIPS
Barzin Khalili, MD's 2023 MIPS final score plotted against the Allergy & Immunology Physician national average
- MIPS Final Score
- 97.8/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Allergy & Immunology Physician) - 97.8/100 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).
Barzin Khalili, MD appears in the CMS NPPES registry as a Allergy & Immunology Physician provider holding MD credentials at 511 SW 10TH AVE STE 1301, Portland, OR, 97205, with a listed phone of (503) 228-0155. NPI 1487725990 was issued on 11/13/2006.
Medicare Part D records for calendar year 2023 show 589 prescription claims written by this provider, covering 110 Medicare beneficiaries and totaling roughly $389K in drug spend, split 59% brand-name and 41% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 97.8/100 for the 2023 performance year (Quality 81), compared with the national average of 83.1.
Allergy & Immunology Physician is a narrow specialty nationwide, with 3,390 enrolled providers across 52 states and an average of 764 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 | 1487725990 |
|---|---|
| Specialty | Allergy & Immunology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 11/13/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
97.83
Final Score
Avg: 83.1
80.9759
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Barzin Khalili, 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.
Barzin Khalili MD LLC
Portland, OR
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Brand-heavy
Barzin Khalili, MD - brand share 59.0%
Allergy & Immunology Physician average
59% brand-name claims vs 41% generic, on 589 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.
589
Total Claims
$389K
Total Drug Cost
110
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 916
- Total Day Supply
- 25,983
- Brand vs Generic
- 59% brand / 41% generic
- Brand Drug Cost
- $368K
- Generic Drug Cost
- $21K
Patient Demographics
- Average Patient Age
- 72.7 years
- Avg HCC Risk Score
- 0.86
- 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 Barzin Khalili, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Montelukast Sodium
Montelukast Sodium
81 claims
- Symbicort
Symbicort
49 claims
- Azelastine Hcl
Azelastine Hcl
36 claims
- Advair Diskus
Advair Diskus
35 claims
- Flovent Hfa
Flovent Hfa
33 claims
- Qvar Redihaler
Qvar Redihaler
33 claims
- Fluticasone Propio… 31
Fluticasone Propionate
31 claims
- Epinephrine 29
Epinephrine
29 claims
| Drug | Claims |
|---|---|
| Montelukast Sodium | 81 |
| Symbicort Budesonide/Formoterol Fumarate | 49 |
| Azelastine Hcl | 36 |
| Advair Diskus Fluticasone Propion/Salmeterol | 35 |
| Flovent Hfa Fluticasone Propionate | 33 |
| Qvar Redihaler Beclomethasone Dipropionate | 33 |
| Fluticasone Propionate | 31 |
| Epinephrine | 29 |
| Hizentra Immun Glob G(Igg)/Pro/Iga 0-50 | 28 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 24 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Allergy & Immunology Physician Overview
How Barzin Khalili, MD fits within the Allergy & Immunology Physician landscape nationally.
3,390
Allergy & Immunology Physician Providers in US
52
States with Allergy & Immunology Physician
764
Avg Claims per Provider
Barzin Khalili, MD's 589 claims are below the specialty average of 764.
Nearby Allergy & Immunology Physician Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Khalili.
Dr. Clifford Anderson
MD
Portland, OR
Dr. Laurel Anderson Cowell
MD
Portland, OR
Dr. Karen Anstey
M.D.
Portland, OR
Dr. Kristyn Anthony
M.D.
Tualatin, OR
Dr. Jennifer Bane
PA-C
Portland, OR
Compare Allergy & Immunology 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 Oregon medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Allergy & Immunology 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 Barzin Khalili, MD's specialty? ▼
Barzin Khalili, MD specializes in Allergy & Immunology Physician and practices in Portland, Oregon. Credentials: MD.
How much does Barzin Khalili, MD prescribe under Medicare Part D? ▼
In 2023, Barzin Khalili, MD wrote 589 Medicare Part D claims totaling $389K in drug costs for 110 beneficiaries.
What is Barzin Khalili, MD's Medicare quality score? ▼
Barzin Khalili, MD has a CMS MIPS Final Score of 97.8/100 (Quality: 81). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Barzin Khalili, MD located? ▼
Barzin Khalili, MD is located at 511 SW 10TH AVE STE 1301, Portland, OR, 97205. Phone: (503) 228-0155.
What is Barzin Khalili, MD's NPI number? ▼
Barzin Khalili, MD's National Provider Identifier (NPI) is 1487725990, issued on 11/13/2006.
Does Barzin Khalili, MD prescribe more brand-name or generic drugs? ▼
Barzin Khalili, MD's prescribing is 59% brand-name and 41% generic drugs by claim count, with $368K in brand drug costs.
How many Allergy & Immunology Physician providers are there in the US? ▼
There are 3,390 Allergy & Immunology Physician providers across 52 states in the US. The average Allergy & Immunology Physician provider writes 764 Medicare Part D claims per year.
What drugs does Barzin Khalili, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Barzin Khalili, MD's most frequently prescribed drugs include Montelukast Sodium, Symbicort, Azelastine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Barzin Khalili, MD accept Medicare? ▼
Barzin Khalili, MD appears in CMS Medicare data with 589 Part D claims and 110 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Barzin Khalili, MD's credentials? ▼
Barzin Khalili, MD's NPI is 1487725990 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.