NPI registry status
Active
2026 NPPES data Ophthalmology Physician NPI 1598790438 M.D.
Verify on CMS → Harry Bernstein, M.D.
Ophthalmology Physician in Elgin, 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 22,388 in Ophthalmology 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 · 432 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
63%
generic claims · 37% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
CMS neutral threshold · no category scores published
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Harry Bernstein, M.D. carries the neutral CMS MIPS final score of 75/100, assigned where no category was scored - and filed 1,056 Medicare Part D claims in 2024.
- 75/100
- CMS neutral score · not measured
- 1K
- Part D claims, 2024
- 63%
- 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 Harry Bernstein, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1598790438), first enumerated 07/11/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,056 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)
CMS assigned a neutral MIPS final score of 75/100 where no performance category was scored — not a measured quality rank.
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.
- State context
State board disciplinary context
Illinois statewide board action statistics are published annually — these figures describe aggregate state activity, not Harry Bernstein, M.D.'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 1598790438 · Ophthalmology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-NEUTRAL · RX-MID · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1598790438
- ENUM-LEGACY 2006
- TAX-MID 22K Ophthalmology Physician
- MIPS-NEUTRAL 75/100
- RX-MID 1,056
- BOOK-LIGHT 891 in Illinois
- PHOTO-ENUM Kenneth Sparks · 2006
Harry Bernstein, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,056 ≥ 75th percentile 75% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. 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 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Harry Bernstein, 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 Harry Bernstein, M.D.?
CMS neutral score, not measuredPrimary specialty
Ophthalmology Physician
Medicare Part D claims
1,056 29% vs specialty avg
MIPS final score
75/100
Specialty distribution in Illinois
How Ophthalmology Physician compares to other specialties among Illinois providers
MIPS score not measured
CMS assigned a neutral 75/100 threshold
CMS did not publish any Quality, Cost, Promoting Interoperability, or Improvement Activities category score for this clinician. This administrative threshold is not comparable with the national average of clinicians whose MIPS score was measured.
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 | 1598790438 |
|---|---|
| Specialty | Ophthalmology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 07/11/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
CMS neutral threshold · not measured
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 Harry Bernstein, M.D.. To verify Harry Bernstein, M.D.'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 · Above average
Harry Bernstein, M.D. - brand share 37.0%
Ophthalmology Physician average
37% brand-name claims vs 63% generic, on 1,056 2024 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 2024.
1,056
Total Claims
$57K
Total Drug Cost
432
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,821.567
- Total Day Supply
- 50,524
- Brand vs Generic
- 37% brand / 63% generic
- Brand Drug Cost
- $38K
- Generic Drug Cost
- $18K
Patient Demographics
- Average Patient Age
- 75.7 years
- Avg HCC Risk Score
- 1.34
- Gender Split
- 59% female / 41% male
- Age Distribution
- <65: 31, 65-74: 156, 75-84: 180, 85+: 65
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Harry Bernstein, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Latanoprost
Latanoprost
365 claims
- Prednisolone Acetate
Prednisolone Acetate
189 claims
- Brimonidine Tartrate 145
Brimonidine Tartrate
145 claims
- Dorzolamide-Timolol 89
Dorzolamide-Timolol
89 claims
- Timolol Maleate 84
Timolol Maleate
84 claims
- Neomycin-Polymyxin… 37
Neomycin-Polymyxin-Dexameth
37 claims
- Dorzolamide Hcl 24
Dorzolamide Hcl
24 claims
- Brimonidine Tartra… 19
Brimonidine Tartrate-Timolol
19 claims
| Drug | Claims |
|---|---|
| Latanoprost | 365 |
| Prednisolone Acetate | 189 |
| Brimonidine Tartrate | 145 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 89 |
| Timolol Maleate | 84 |
| Neomycin-Polymyxin-Dexameth Neomycin/Polymyxin B/Dexametha | 37 |
| Dorzolamide Hcl | 24 |
| Brimonidine Tartrate-Timolol Brimonidine Tartrate/Timolol | 19 |
| Simbrinza Brinzolamide/Brimonidine Tart | 17 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Ophthalmology Physician Overview
How Harry Bernstein, M.D. fits within the Ophthalmology Physician landscape nationally.
22,388
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,490
Avg Claims per Provider
Harry Bernstein, M.D.'s 1,056 claims are below the specialty average of 1,490.
Nationwide Ophthalmology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Bernstein, both outside Illinois so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (75 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Ophthalmology Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Bernstein.
One of 891 Ophthalmology Physician providers enrolled in Illinois, 5 are shown here.
Dr. Walid Abdallah
MD
Rockford, IL
Dr. Robert Abishek
MD
Chicago, IL
Dr. Ashley Abraham
M.D.
Springfield, IL
Dr. Evelyn Ackermann
MD
Elgin, IL
Dr. Kathleen Ackman Blake
MD
Hinsdale, IL
Compare Ophthalmology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Harry Bernstein, M.D.'s specialty? ▼
Harry Bernstein, M.D. specializes in Ophthalmology Physician and practices in Elgin, Illinois. Credentials: M.D..
How much does Harry Bernstein, M.D. prescribe under Medicare Part D? ▼
In 2024, Harry Bernstein, M.D. wrote 1,056 Medicare Part D claims totaling $57K in drug costs for 432 beneficiaries.
What is Harry Bernstein, M.D.'s Medicare quality score? ▼
Harry Bernstein, M.D. has a CMS MIPS Final Score of 75/100. CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score for this clinician, so the final score is the neutral performance threshold CMS assigns rather than a measured result. 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 Harry Bernstein, M.D. located? ▼
Harry Bernstein, M.D. is located at 2521 TECHNOLOGY DR, Elgin, IL, 60124. Phone: (847) 836-1122.
What is Harry Bernstein, M.D.'s NPI number? ▼
Harry Bernstein, M.D.'s National Provider Identifier (NPI) is 1598790438, issued on 07/11/2006.
Does Harry Bernstein, M.D. prescribe more brand-name or generic drugs? ▼
Harry Bernstein, M.D.'s prescribing is 37% brand-name and 63% generic drugs by claim count, with $38K in brand drug costs.
How many Ophthalmology Physician providers are there in the US? ▼
There are 22,388 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,490 Medicare Part D claims per year.
What drugs does Harry Bernstein, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Harry Bernstein, M.D.'s most frequently prescribed drugs include Latanoprost, Prednisolone Acetate, Brimonidine Tartrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Harry Bernstein, M.D. accept Medicare? ▼
Harry Bernstein, M.D. appears in CMS Medicare data with 1,056 Part D claims and 432 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Harry Bernstein, M.D.'s credentials? ▼
Harry Bernstein, M.D.'s NPI is 1598790438 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.