NPI registry status
Active
2026 NPPES data Specialist NPI 1831209865 M.D.
Verify on CMS → Deborah Desir, M.D.
Specialist in Hamden, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 69,608 in Specialist, 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
854
Medicare Part D claims · 154 beneficiaries · Specialist avg: 1K
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
73.6/100
▼ 10 pts below national avg 83.1 · Mid-tier
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
Deborah Desir, M.D. reported a CMS MIPS final score of 73.6/100 - below the 83.1 national average - and filed 854 Medicare Part D claims in 2023.
- 73.6/100
- MIPS score · -10 vs avg
- 854
- Part D claims, 2023
- 83%
- generic prescribing
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.
Deborah Desir, 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
74 11th percentile higher than 11% 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 Deborah Desir, M.D. sits
This provider among specialist peers
Across the 4,869 specialist providers who report both Medicare Part D prescribing and a MIPS quality score, Deborah Desir, M.D. writes more Part D claims than 49% of them and scores higher on MIPS quality than 21% - 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 specialist peer from a representative sample of 60; the gold marker is Deborah Desir, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Deborah Desir, M.D.?
Below national averagePrimary specialty
Specialist
Medicare Part D claims
854 42% vs specialty avg
MIPS final score
73.6/100 9.5 pts vs avg
Specialty distribution in Connecticut
How Specialist compares to other specialties among Connecticut providers
Medicare quality performance, MIPS
Deborah Desir, M.D.'s 2023 MIPS final score plotted against the Specialist national average
- MIPS Final Score
- 73.6/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Specialist) - 73.6/100 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).
Deborah Desir, M.D. appears in the CMS NPPES registry as a Specialist provider holding M.D. credentials at 3018 DIXWELL AVE, Hamden, CT, 06518, with a listed phone of (203) 281-5910. NPI 1831209865 was issued on 08/30/2006.
Medicare Part D records for calendar year 2023 show 854 prescription claims written by this provider, covering 154 Medicare beneficiaries and totaling roughly $1.2 million in drug spend, split 17% brand-name and 83% generic by claim count, with an opioid prescribing rate of 5.5%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 73.6/100 for the 2023 performance year (Quality 75.8, Cost 51.4), compared with the national average of 83.1.
Specialist is a high-volume specialty nationwide, with 69,608 enrolled providers across 55 states and an average of 1,474 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 | 1831209865 |
|---|---|
| Specialty | Specialist |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 08/30/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
73.5637
Final Score
Avg: 83.1
75.8435
Quality
51.4318
Cost
74
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Deborah Desir, M.D. 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.
Yale University
New Haven, CT
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 · Typical
Deborah Desir, M.D. - brand share 17.0%
Specialist average
17% brand-name claims vs 83% generic, on 854 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.
854
Total Claims
$1.2M
Total Drug Cost
154
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,825
- Total Day Supply
- 53,623
- Brand vs Generic
- 17% brand / 83% generic
- Brand Drug Cost
- $1.2M
- Generic Drug Cost
- $42K
- Opioid Claims
- 47 (5.5% rate)
Patient Demographics
- Average Patient Age
- 74.6 years
- Avg HCC Risk Score
- 1.64
- Gender Split
- 79% female / 21% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Deborah Desir, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Methotrexate
Methotrexate
141 claims
- Hydroxychloroquine…
Hydroxychloroquine Sulfate
139 claims
- Prednisone
Prednisone
128 claims
- Tramadol Hcl 42
Tramadol Hcl
42 claims
- Humira(Cf) Pen 40
Humira(Cf) Pen
40 claims
- Diclofenac Sodium 25
Diclofenac Sodium
25 claims
- Meloxicam 22
Meloxicam
22 claims
- Rayos 21
Rayos
21 claims
| Drug | Claims |
|---|---|
| Methotrexate Methotrexate Sodium | 141 |
| Hydroxychloroquine Sulfate | 139 |
| Prednisone | 128 |
| Tramadol Hcl | 42 |
| Humira(Cf) Pen Adalimumab | 40 |
| Diclofenac Sodium | 25 |
| Meloxicam | 22 |
| Rayos Prednisone | 21 |
| Allopurinol | 20 |
| Folic Acid | 19 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Specialist Overview
How Deborah Desir, M.D. fits within the Specialist landscape nationally.
69,608
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider
Deborah Desir, M.D.'s 854 claims are below the specialty average of 1,474.
Nearby Specialist Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Desir.
Dr. Jay Abbott
M.D.
Litchfield, CT
Dr. Karen Abrams
M.D.
Westport, CT
Dr. Micheal Acocella
B.S., P.T.
Greenwich, CT
Dr. Diana Adams
M.D.
Greenwich, CT
Dr. Zosimo Adefuin
MD
Bridgeport, CT
Compare Specialist 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 Connecticut medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Specialist 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 Deborah Desir, M.D.'s specialty? ▼
Deborah Desir, M.D. specializes in Specialist and practices in Hamden, Connecticut. Credentials: M.D..
How much does Deborah Desir, M.D. prescribe under Medicare Part D? ▼
In 2023, Deborah Desir, M.D. wrote 854 Medicare Part D claims totaling $1.2M in drug costs for 154 beneficiaries.
What is Deborah Desir, M.D.'s Medicare quality score? ▼
Deborah Desir, M.D. has a CMS MIPS Final Score of 73.6/100 (Quality: 75.8, Cost: 51.4). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Deborah Desir, M.D. located? ▼
Deborah Desir, M.D. is located at 3018 DIXWELL AVE, Hamden, CT, 06518. Phone: (203) 281-5910.
What is Deborah Desir, M.D.'s NPI number? ▼
Deborah Desir, M.D.'s National Provider Identifier (NPI) is 1831209865, issued on 08/30/2006.
Does Deborah Desir, M.D. prescribe more brand-name or generic drugs? ▼
Deborah Desir, M.D.'s prescribing is 17% brand-name and 83% generic drugs by claim count, with $1.2M in brand drug costs.
Does Deborah Desir, M.D. prescribe opioids? ▼
Yes, Deborah Desir, M.D. had 47 opioid claims in 2023 with an opioid prescribing rate of 5.5%.
How many Specialist providers are there in the US? ▼
There are 69,608 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does Deborah Desir, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Deborah Desir, M.D.'s most frequently prescribed drugs include Methotrexate, Hydroxychloroquine Sulfate, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Deborah Desir, M.D. accept Medicare? ▼
Deborah Desir, M.D. appears in CMS Medicare data with 854 Part D claims and 154 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Deborah Desir, M.D.'s credentials? ▼
Deborah Desir, M.D.'s NPI is 1831209865 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.