NPI registry status
Active
2026 NPPES data Pain Medicine (Anesthesiology) Physician NPI 1891140174
Verify on CMS → David Esparaz
Pain Medicine (Anesthesiology) Physician in Schaumburg, 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 4,032 in Pain Medicine (Anesthesiology) 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
2K
Medicare Part D claims · 283 beneficiaries · Pain Medicine (Anesthesiology) Physician avg: 2K
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
0/100
▼ 84 pts below national avg 83.5 · Penalty band
Industry payments
$1.5K
43 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
David Esparaz reported a CMS MIPS final score of 0/100 - below the 83.5 national average - and filed 1,523 Medicare Part D claims in 2023.
- 0/100
- MIPS score · -83 vs avg
- 2K
- Part D claims, 2023
- 92%
- 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.
Federal trust snapshot
What official records show about David Esparaz
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1891140174), first enumerated 04/25/2016.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,523 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 0/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$1.5K in reported industry payments (43 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
Illinois statewide board action statistics are published annually — these figures describe aggregate state activity, not David Esparaz's individual license status. Verify directly with the state medical board.
Source: IDFPR annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1891140174 · Pain Medicine (Anesthesiology) Physician
NPI-10 · ENUM-MID · TAX-NARROW · MIPS-LOW · RX-MID · BOOK-THIN · PHOTO-FINISH
- NPI-10 1891140174
- ENUM-MID 2016
- TAX-NARROW 4,032
- MIPS-LOW 0/100
- RX-MID 1,523
- BOOK-THIN 174 in Illinois
- PHOTO-FINISH Emil Annabi · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Esparaz · this p… 0
Esparaz · this provider
0 MIPS pts
- Robert Brown · h… 0
Robert Brown
0 MIPS pts
- Emil Annabi · near 0
Emil Annabi
0 MIPS pts
- Richard Bose · n… 0
Richard Bose
0 MIPS pts
- Vishwajit Brahmb… 0
Vishwajit Brahmbhatt
0 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
David Esparaz's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
0 ≥ 0th percentile 0% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where David Esparaz sits
This provider among pain medicine (anesthesiology) physician peers
Across the 928 pain medicine (anesthesiology) physician providers who report both Medicare Part D prescribing and a MIPS quality score, David Esparaz writes more Part D claims than 62% 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.
Each dot is one pain medicine (anesthesiology) physician peer from a representative sample of 60; the gold marker is David Esparaz. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
David Esparaz practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations - 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 David Esparaz?
Below national averagePrimary specialty
Pain Medicine (Anesthesiology) Physician
Medicare Part D claims
1,523 8% vs specialty avg
MIPS final score
0/100 83.5 pts vs avg
Specialty distribution in Illinois
How Pain Medicine (Anesthesiology) Physician compares to other specialties among Illinois providers
Medicare quality performance, MIPS
David Esparaz's 2023 MIPS final score plotted against the Pain Medicine (Anesthesiology) Physician national average
- MIPS Final Score
- 0/100
- vs 83.5 national avg · 2023 performance year
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).
Practice Address
Provider Details
| NPI | 1891140174 |
|---|---|
| Specialty | Pain Medicine (Anesthesiology) Physician |
| Gender | Male |
| NPI Issued | 04/25/2016 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
0
Final Score
Measured-score avg: 83.5
0
Quality
Reporting: Individual
Hospital and facility affiliations
Facilities where David Esparaz 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.
Core Orthopedics And Sports Medicine LLC
Elk Grove Village, IL
Premier Pain Specialists LLC
Downers Grove, IL
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 David Esparaz. Source: openpaymentsdata.cms.gov.
Total received
$1.5K
Largest payer
Nevro Corp.
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 - 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 David Esparaz. To verify David Esparaz'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.
Brand vs generic prescribing mix · Generic-heavy
David Esparaz - brand share 8.0%
Pain Medicine (Anesthesiology) Physician average
8% brand-name claims vs 92% generic, on 1,523 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.
1,523
Total Claims
$122K
Total Drug Cost
283
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,764
- Total Day Supply
- 50,739
- Brand vs Generic
- 8% brand / 92% generic
- Brand Drug Cost
- $83K
- Generic Drug Cost
- $39K
- Opioid Claims
- 360 (23.6% rate)
Patient Demographics
- Average Patient Age
- 71.3 years
- Avg HCC Risk Score
- 1.49
- Gender Split
- 67% female / 33% male
- Age Distribution
- <65: 47, 65-74: 126, 75-84: 88, 85+: 22
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What David Esparaz prescribes most
Top Medicare Part D drugs by claim count, 2023
- Tramadol Hcl
Tramadol Hcl
266 claims
- Duloxetine Hcl
Duloxetine Hcl
254 claims
- Gabapentin
Gabapentin
211 claims
- Pregabalin
Pregabalin
123 claims
- Belbuca 94
Belbuca
94 claims
- Cyclobenzaprine Hcl 70
Cyclobenzaprine Hcl
70 claims
- Trazodone Hcl 54
Trazodone Hcl
54 claims
- Baclofen 53
Baclofen
53 claims
| Drug | Claims |
|---|---|
| Tramadol Hcl | 266 |
| Duloxetine Hcl | 254 |
| Gabapentin | 211 |
| Pregabalin | 123 |
| Belbuca Buprenorphine Hcl | 94 |
| Cyclobenzaprine Hcl | 70 |
| Trazodone Hcl | 54 |
| Baclofen | 53 |
| Tizanidine Hcl | 49 |
| Diclofenac Sodium | 48 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Pain Medicine (Anesthesiology) Physician in IL →
All providers in Illinois →
Compare specialties →
Pain Medicine (Anesthesiology) Physician Overview
How David Esparaz fits within the Pain Medicine (Anesthesiology) Physician landscape nationally.
4,032
Pain Medicine (Anesthesiology) Physician Providers in US
53
States with Pain Medicine (Anesthesiology) Physician
1,657
Avg Claims per Provider
David Esparaz's 1,523 claims are below the specialty average of 1,657.
Nationwide Pain Medicine (Anesthesiology) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Esparaz, both outside Illinois so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (0 here).
Same NPPES enumeration year (2016)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Pain Medicine (Anesthesiology) Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Esparaz.
One of 174 Pain Medicine (Anesthesiology) Physician providers enrolled in Illinois, 5 are shown here.
Dr. Faris Abusharif
MD
Orland Park, IL
Dr. Simon Adanin
D.O.
Chicago, IL
Dr. Dylan Afeld
M.D.
Springfield, IL
Dr. Hany Afram
MD
Rockford, IL
Dr. Justin Ahlman
M.D.
Peoria, IL
Compare Pain Medicine (Anesthesiology) Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is David Esparaz's specialty? ▼
David Esparaz specializes in Pain Medicine (Anesthesiology) Physician and practices in Schaumburg, Illinois.
How much does David Esparaz prescribe under Medicare Part D? ▼
In 2023, David Esparaz wrote 1,523 Medicare Part D claims totaling $122K in drug costs for 283 beneficiaries.
What is David Esparaz's Medicare quality score? ▼
David Esparaz has a CMS MIPS Final Score of 0/100 (Quality: 0). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is David Esparaz located? ▼
David Esparaz is located at 1365 WILEY RD STE 153, Schaumburg, IL, 60173. Phone: (866) 600-2273.
What is David Esparaz's NPI number? ▼
David Esparaz's National Provider Identifier (NPI) is 1891140174, issued on 04/25/2016.
Does David Esparaz prescribe more brand-name or generic drugs? ▼
David Esparaz's prescribing is 8% brand-name and 92% generic drugs by claim count, with $83K in brand drug costs.
Does David Esparaz prescribe opioids? ▼
Yes, David Esparaz had 360 opioid claims in 2023 with an opioid prescribing rate of 23.6%.
How many Pain Medicine (Anesthesiology) Physician providers are there in the US? ▼
There are 4,032 Pain Medicine (Anesthesiology) Physician providers across 53 states in the US. The average Pain Medicine (Anesthesiology) Physician provider writes 1,657 Medicare Part D claims per year.
What drugs does David Esparaz prescribe most often? ▼
Based on 2023 Medicare Part D data, David Esparaz's most frequently prescribed drugs include Tramadol Hcl, Duloxetine Hcl, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does David Esparaz accept Medicare? ▼
David Esparaz appears in CMS Medicare data with 1,523 Part D claims and 283 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify David Esparaz's credentials? ▼
David Esparaz's NPI is 1891140174. 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
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.