2026 NPPES data Retina Specialist (Ophthalmology) Physician NPI 1881691327 MD
Verify on CMS →

WARREN SOBOL, MD

Retina Specialist (Ophthalmology) Physician in CLEVELAND, Ohio. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
194
Medicare Part D claims · 42 beneficiaries · Retina Specialist (Ophthalmology) Physician avg: 558
Generic prescribing
44%
generic claims · 56% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
79.4829/100
▼ 4 pts below national avg 83.1 · [object Object]
Industry payments
$542.75
20 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

WARREN SOBOL, MD reported a CMS MIPS final score of 79.4829/100 — below the 83.1 national average — and filed 194 Medicare Part D claims in 2023.

79.4829/100
MIPS score · -4 vs avg
194
Part D claims, 2023
44%
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.

WARREN SOBOL, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

79 30th percentile higher than 30% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

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

Board certification likely (heuristic — not verified)

WARREN SOBOL, 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 WARREN SOBOL, MD?

Near national average

NPI registry status

Active

Issued 06/30/2005

NPI 1881691327

Primary specialty

Retina Specialist (Ophthalmology) Physician

Niche

913 US NPIs in this specialty

Medicare Part D claims

194 65% vs specialty avg

2023 prescription claims

Specialty avg: 558

MIPS final score

79.4829/100 3.6170999999999935% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Ohio

How Retina Specialist (Ophthalmology) Physician compares to other specialties among Ohio providers

Ohio providers

Retina Specialist (Ophthalmology) Physician share within Ohio

1. Retina Specialist (Ophthalmology) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Retina Specialist (Ophthalmology) Physician share within Ohio

Medicare quality performance — MIPS

WARREN SOBOL, MD's 2023 MIPS final score plotted against the Retina Specialist (Ophthalmology) Physician national average

Near national average
MIPS Final Score
79.4829/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Retina Specialist (Ophthalmology) Physician) — 79.4829/100 vs national avg 83.1

0%100%National avg83%79.5%
MIPS final score (Retina Specialist (Ophthalmology) Physician) — 79.4829/100 vs national avg 83.1

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).

WARREN SOBOL, MD appears in the CMS NPPES registry as a Retina Specialist (Ophthalmology) Physician provider holding MD credentials at 11100 EUCLID AVE STE 3200, CLEVELAND, OH, 44106, with a listed phone of (216) 844-3601. NPI 1881691327 was issued on 06/30/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SOBOL most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 194 prescription claims written by this provider, covering 42 Medicare beneficiaries and totaling roughly $15K in drug spend, split 56% brand-name and 44% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.4829/100 for the 2023 performance year (Quality 68.5144, Cost 63.0952), compared with the national average of 83.1.

Retina Specialist (Ophthalmology) Physician is a narrow specialty nationwide, with 913 enrolled providers across 48 states and an average of 558 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

11100 EUCLID AVE STE 3200
CLEVELAND, OH 44106

Provider Details

NPI 1881691327
Specialty Retina Specialist (Ophthalmology) Physician
Credentials MD
Gender Male
NPI Issued 06/30/2005

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

79.4829
Final Score
Avg: 83.1
68.5144
Quality
63.0952
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where WARREN SOBOL, 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.

UNIVERSITY HOSPITALS MEDICAL GROUP INC
CLEVELAND, OH

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 WARREN SOBOL, MD. Source: openpaymentsdata.cms.gov.

Total received

$543

Largest payer

Sandoz Inc.

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 — Ohio OMB 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 ~48K Ohio medical licensees in 2023 — they are NOT specific to WARREN SOBOL, MD. To verify WARREN SOBOL, MD's current license status, search the OMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

158
Total board actions, Ohio 2023
Across 154 cases
3.29
Actions per 1,000 licensees
Ohio statewide rate
probation
Most common action type
56 cases

OMB 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 Ohio disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Brand-heavy

WARREN SOBOL, MD — brand share 56.0%
Specialty average (est.)

56% brand-name claims vs 44% generic, on 194 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.

194
Total Claims
$15K
Total Drug Cost
42
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
294
Total Day Supply
8,235
Brand vs Generic
56% brand / 44% generic
Brand Drug Cost
$11K
Generic Drug Cost
$4K

Patient Demographics

Average Patient Age
73.3 years
Avg HCC Risk Score
2.02
Gender Split
57% female / 43% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What WARREN SOBOL, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Prednisolone Acetate
80
Brimonidine Tartrate
29
Ketorolac Tromethamine
16
Latanoprost
16
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
13

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Retina Specialist (Ophthalmology) Physician Overview

How WARREN SOBOL, MD fits within the Retina Specialist (Ophthalmology) Physician landscape nationally.

913
Retina Specialist (Ophthalmology) Physician Providers in US
48
States with Retina Specialist (Ophthalmology) Physician
558
Avg Claims per Provider

WARREN SOBOL, MD's 194 claims are below the specialty average of 558.

Nearby Retina Specialist (Ophthalmology) Physician Providers in Ohio

Other clinicians with the same primary specialty enrolled in Ohio, drawn from the same CMS NPPES roster as SOBOL.

Compare Retina Specialist (Ophthalmology) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is WARREN SOBOL, MD's specialty?
WARREN SOBOL, MD specializes in Retina Specialist (Ophthalmology) Physician and practices in CLEVELAND, Ohio. Credentials: MD.
How much does WARREN SOBOL, MD prescribe under Medicare Part D?
In 2023, WARREN SOBOL, MD wrote 194 Medicare Part D claims totaling $15K in drug costs for 42 beneficiaries.
What is WARREN SOBOL, MD's Medicare quality score?
WARREN SOBOL, MD has a CMS MIPS Final Score of 79.4829/100 (Quality: 68.5144, Cost: 63.0952). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is WARREN SOBOL, MD located?
WARREN SOBOL, MD is located at 11100 EUCLID AVE STE 3200, CLEVELAND, OH, 44106. Phone: (216) 844-3601.
What is WARREN SOBOL, MD's NPI number?
WARREN SOBOL, MD's National Provider Identifier (NPI) is 1881691327, issued on 06/30/2005.
Does WARREN SOBOL, MD prescribe more brand-name or generic drugs?
WARREN SOBOL, MD's prescribing is 56% brand-name and 44% generic drugs by claim count, with $11K in brand drug costs.
How many Retina Specialist (Ophthalmology) Physician providers are there in the US?
There are 913 Retina Specialist (Ophthalmology) Physician providers across 48 states in the US. The average Retina Specialist (Ophthalmology) Physician provider writes 558 Medicare Part D claims per year.
What drugs does WARREN SOBOL, MD prescribe most often?
Based on 2023 Medicare Part D data, WARREN SOBOL, MD's most frequently prescribed drugs include Prednisolone Acetate, Brimonidine Tartrate, Ketorolac Tromethamine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does WARREN SOBOL, MD accept Medicare?
WARREN SOBOL, MD appears in CMS Medicare data with 194 Part D claims and 42 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WARREN SOBOL, MD's credentials?
WARREN SOBOL, MD's NPI is 1881691327 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

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