NPI registry status
Active
2026 NPPES data Hematology & Oncology Physician NPI 1871607051
Verify on CMS → Lawrence Feldman
Hematology & Oncology Physician in Chicago, Illinois.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 11,215 in Hematology & Oncology 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
170
Medicare Part D claims · 40 beneficiaries · Hematology & Oncology Physician avg: 847
MIPS score
87.1/100
▲ 4 pts above national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Lawrence Feldman reported a CMS MIPS final score of 87.1/100 - above the 83.1 national average - and filed 170 Medicare Part D claims in 2023.
- 87.1/100
- MIPS score · +4 vs avg
- 170
- 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.
Lawrence Feldman's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
87 Top 46% higher than 54% 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 Lawrence Feldman sits
This provider among hematology & oncology physician peers
Across the 4,233 hematology & oncology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Lawrence Feldman writes more Part D claims than 14% of them and scores higher on MIPS quality than 53% - 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 hematology & oncology physician peer from a representative sample of 60; the gold marker is Lawrence Feldman. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Lawrence Feldman 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 Lawrence Feldman?
High performer (top quartile)Primary specialty
Hematology & Oncology Physician
Medicare Part D claims
170 80% vs specialty avg
MIPS final score
87.1/100 4 pts vs avg
Specialty distribution in Illinois
How Hematology & Oncology Physician compares to other specialties among Illinois providers
Medicare quality performance, MIPS
Lawrence Feldman's 2023 MIPS final score plotted against the Hematology & Oncology Physician national average
- MIPS Final Score
- 87.1/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Hematology & Oncology Physician) - 87.1/100 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).
Lawrence Feldman appears in the CMS NPPES registry as a Hematology & Oncology Physician provider at 1740 W TAYLOR ST, Chicago, IL, 60612, with a listed phone of (866) 600-2273. NPI 1871607051 was issued on 08/18/2006.
Medicare Part D records for calendar year 2023 show 170 prescription claims written by this provider, covering 40 Medicare beneficiaries and totaling roughly $701K in drug spend, with an opioid prescribing rate of 10.0%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 87.1/100 for the 2023 performance year (Quality 70.8, Cost 52.8), compared with the national average of 83.1.
Hematology & Oncology Physician is a mid-sized specialty nationwide, with 11,215 enrolled providers across 54 states and an average of 847 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 | 1871607051 |
|---|---|
| Specialty | Hematology & Oncology Physician |
| Gender | Male |
| NPI Issued | 08/18/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
87.0887
Final Score
Avg: 83.1
70.7998
Quality
52.8291
Cost
100
Promoting Interoperability
Reporting: Group practice
License & disciplinary context - Illinois IDFPR 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 ~42K Illinois medical licensees in 2023 - they are NOT specific to Lawrence Feldman. To verify Lawrence Feldman's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases
IDFPR 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 Illinois 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.
170
Total Claims
$701K
Total Drug Cost
40
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 195
- Total Day Supply
- 4,192
- Generic Drug Cost
- $1K
- Opioid Claims
- 17 (10.0% rate)
Patient Demographics
- Average Patient Age
- 68.0 years
- Avg HCC Risk Score
- 2.99
- Gender Split
- 50% female / 50% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Lawrence Feldman prescribes most
Top Medicare Part D drugs by claim count, 2023
- Dexamethasone
Dexamethasone
23 claims
- Tagrisso
Tagrisso
18 claims
- Prochlorperazine M…
Prochlorperazine Maleate
13 claims
- Lorbrena
Lorbrena
12 claims
- Xalkori
Xalkori
11 claims
- Xarelto
Xarelto
11 claims
| Drug | Claims |
|---|---|
| Dexamethasone | 23 |
| Tagrisso Osimertinib Mesylate | 18 |
| Prochlorperazine Maleate | 13 |
| Lorbrena Lorlatinib | 12 |
| Xalkori Crizotinib | 11 |
| Xarelto Rivaroxaban | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Hematology & Oncology Physician Overview
How Lawrence Feldman fits within the Hematology & Oncology Physician landscape nationally.
11,215
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider
Lawrence Feldman's 170 claims are below the specialty average of 847.
Nearby Hematology & Oncology Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Feldman.
Dr. Yasmin Abaza
M.D.
Chicago, IL
Dr. Worood Abboud
M.D.
Joliet, IL
Dr. Sabree Abedrabo
MD
Park Ridge, IL
Dr. Majed Abuhajir
MD
Rockford, IL
Dr. Kehinde Adekola
MD
Chicago, IL
Compare Hematology & Oncology 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 Illinois medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Hematology & Oncology 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 Lawrence Feldman's specialty? ▼
Lawrence Feldman specializes in Hematology & Oncology Physician and practices in Chicago, Illinois.
How much does Lawrence Feldman prescribe under Medicare Part D? ▼
In 2023, Lawrence Feldman wrote 170 Medicare Part D claims totaling $701K in drug costs for 40 beneficiaries.
What is Lawrence Feldman's Medicare quality score? ▼
Lawrence Feldman has a CMS MIPS Final Score of 87.1/100 (Quality: 70.8, Cost: 52.8). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Lawrence Feldman located? ▼
Lawrence Feldman is located at 1740 W TAYLOR ST, Chicago, IL, 60612. Phone: (866) 600-2273.
What is Lawrence Feldman's NPI number? ▼
Lawrence Feldman's National Provider Identifier (NPI) is 1871607051, issued on 08/18/2006.
Does Lawrence Feldman prescribe opioids? ▼
Yes, Lawrence Feldman had 17 opioid claims in 2023 with an opioid prescribing rate of 10.0%.
How many Hematology & Oncology Physician providers are there in the US? ▼
There are 11,215 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
What drugs does Lawrence Feldman prescribe most often? ▼
Based on 2023 Medicare Part D data, Lawrence Feldman's most frequently prescribed drugs include Dexamethasone, Tagrisso, Prochlorperazine Maleate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Lawrence Feldman accept Medicare? ▼
Lawrence Feldman appears in CMS Medicare data with 170 Part D claims and 40 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Lawrence Feldman's credentials? ▼
Lawrence Feldman's NPI is 1871607051. 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.