NPI registry status
Active
2026 NPPES data Ophthalmology Physician NPI 1336355973 M.D.
Verify on CMS → Ross Bloomberg, M.D.
Ophthalmology Physician in Zanesville, Ohio.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 22,082 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
4K
Medicare Part D claims · 917 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
56%
generic claims · 44% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
89.5/100
▲ 6 pts above national avg 83.1 · Exceptional
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
Ross Bloomberg, M.D. reported a CMS MIPS final score of 89.5/100 - above the 83.1 national average - and filed 3,846 Medicare Part D claims in 2023.
- 89.5/100
- MIPS score · +6 vs avg
- 4K
- Part D claims, 2023
- 56%
- 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.
Ross Bloomberg, 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
90 Top 42% higher than 58% 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 Ross Bloomberg, M.D. sits
This provider among ophthalmology physician peers
Across the 9,866 ophthalmology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Ross Bloomberg, M.D. writes more Part D claims than 91% of them and scores higher on MIPS quality than 54% - placing this provider in the high-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 ophthalmology physician peer from a representative sample of 60; the gold marker is Ross Bloomberg, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Ross Bloomberg, M.D. 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 Ross Bloomberg, M.D.?
High performer (top quartile)Primary specialty
Ophthalmology Physician
Medicare Part D claims
3,846 171% vs specialty avg
MIPS final score
89.5/100 6.4 pts vs avg
Specialty distribution in Ohio
How Ophthalmology Physician compares to other specialties among Ohio providers
Medicare quality performance, MIPS
Ross Bloomberg, M.D.'s 2023 MIPS final score plotted against the Ophthalmology Physician national average
- MIPS Final Score
- 89.5/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Ophthalmology Physician) - 89.5/100 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).
Ross Bloomberg, M.D. appears in the CMS NPPES registry as an Ophthalmology Physician provider holding M.D. credentials at 2935 MAPLE AVE, Zanesville, OH, 43701, with a listed phone of (740) 454-1216. NPI 1336355973 was issued on 05/14/2007.
Medicare Part D records for calendar year 2023 show 3,846 prescription claims written by this provider, covering 917 Medicare beneficiaries and totaling roughly $337K in drug spend, split 44% brand-name and 56% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 89.5/100 for the 2023 performance year (Quality 99.3, Cost 66), compared with the national average of 83.1.
Ophthalmology Physician is a mid-sized specialty nationwide, with 22,082 enrolled providers across 56 states and an average of 1,420 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 | 1336355973 |
|---|---|
| Specialty | Ophthalmology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 05/14/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
89.5172
Final Score
Avg: 83.1
99.3051
Quality
65.984
Cost
Reporting: Group practice
Hospital and facility affiliations
Facilities where Ross Bloomberg, 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.
Eye Surgery Associates OF Zanesville, Inc.
Zanesville, 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).
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 Ross Bloomberg, M.D.. To verify Ross Bloomberg, M.D.'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 · Above average
Ross Bloomberg, M.D. - brand share 44.0%
Ophthalmology Physician average
44% brand-name claims vs 56% generic, on 3,846 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.
3,846
Total Claims
$337K
Total Drug Cost
917
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 5,958
- Total Day Supply
- 166,352
- Brand vs Generic
- 44% brand / 56% generic
- Brand Drug Cost
- $267K
- Generic Drug Cost
- $70K
- Antibiotic Claims
- 20
Patient Demographics
- Average Patient Age
- 74.1 years
- Avg HCC Risk Score
- 1.41
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 80, 65-74: 406, 75-84: 336, 85+: 95
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ross Bloomberg, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Prednisolone Acetate
Prednisolone Acetate
935 claims
- Latanoprost
Latanoprost
821 claims
- Dorzolamide-Timolol
Dorzolamide-Timolol
400 claims
- Ketorolac Trometha… 348
Ketorolac Tromethamine
348 claims
- Brimonidine Tartrate 263
Brimonidine Tartrate
263 claims
- Timolol Maleate 207
Timolol Maleate
207 claims
- Rocklatan 85
Rocklatan
85 claims
- Neomycin-Polymyxin… 80
Neomycin-Polymyxin-Dexameth
80 claims
| Drug | Claims |
|---|---|
| Prednisolone Acetate | 935 |
| Latanoprost | 821 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 400 |
| Ketorolac Tromethamine | 348 |
| Brimonidine Tartrate | 263 |
| Timolol Maleate | 207 |
| Rocklatan Netarsudil Mesylat/Latanoprost | 85 |
| Neomycin-Polymyxin-Dexameth Neomycin/Polymyxin B/Dexametha | 80 |
| Dorzolamide Hcl | 72 |
| Restasis Cyclosporine | 72 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Ophthalmology Physician Overview
How Ross Bloomberg, M.D. fits within the Ophthalmology Physician landscape nationally.
22,082
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider
Ross Bloomberg, M.D.'s 3,846 claims are above the specialty average of 1,420.
Nearby Ophthalmology Physician Providers in Ohio
Other clinicians with the same primary specialty enrolled in Ohio, drawn from the same CMS NPPES roster as Bloomberg.
Dr. Hassan Abdul Aziz
M.D.
Cleveland, OH
Dr. Marwan Abdulaal
M.D.
Fairfield, OH
Dr. Michael Abowd
M.D.
Toledo, OH
Dr. Joseph Abraham
MD
Cleveland, OH
Dr. David Adam
M.D.
Hamilton, OH
Compare Ophthalmology 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 Ohio medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Ophthalmology 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 Ross Bloomberg, M.D.'s specialty? ▼
Ross Bloomberg, M.D. specializes in Ophthalmology Physician and practices in Zanesville, Ohio. Credentials: M.D..
How much does Ross Bloomberg, M.D. prescribe under Medicare Part D? ▼
In 2023, Ross Bloomberg, M.D. wrote 3,846 Medicare Part D claims totaling $337K in drug costs for 917 beneficiaries.
What is Ross Bloomberg, M.D.'s Medicare quality score? ▼
Ross Bloomberg, M.D. has a CMS MIPS Final Score of 89.5/100 (Quality: 99.3, Cost: 66). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Ross Bloomberg, M.D. located? ▼
Ross Bloomberg, M.D. is located at 2935 MAPLE AVE, Zanesville, OH, 43701. Phone: (740) 454-1216.
What is Ross Bloomberg, M.D.'s NPI number? ▼
Ross Bloomberg, M.D.'s National Provider Identifier (NPI) is 1336355973, issued on 05/14/2007.
Does Ross Bloomberg, M.D. prescribe more brand-name or generic drugs? ▼
Ross Bloomberg, M.D.'s prescribing is 44% brand-name and 56% generic drugs by claim count, with $267K in brand drug costs.
How many Ophthalmology Physician providers are there in the US? ▼
There are 22,082 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,420 Medicare Part D claims per year.
What drugs does Ross Bloomberg, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Ross Bloomberg, M.D.'s most frequently prescribed drugs include Prednisolone Acetate, Latanoprost, Dorzolamide-Timolol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ross Bloomberg, M.D. accept Medicare? ▼
Ross Bloomberg, M.D. appears in CMS Medicare data with 3,846 Part D claims and 917 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ross Bloomberg, M.D.'s credentials? ▼
Ross Bloomberg, M.D.'s NPI is 1336355973 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.