2026 NPPES data Ophthalmology Physician NPI 1336355973 M.D.
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ROSS BLOOMBERG, M.D.

Ophthalmology Physician in ZANESVILLE, 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
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
89.5172/100
▲ 6 pts above national avg 83.1 · [object Object]
What the federal data reveals: ROSS BLOOMBERG, M.D. is a Ophthalmology Physician ([object Object]) practicing in ZANESVILLE, Ohio with a Medicare Part D prescribing footprint of 4K claims across 917 beneficiaries — 44% brand-name prescribing . Their CMS MIPS Final Score of 89.5172/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: ROSS BLOOMBERG, M.D. reported a CMS MIPS final score of 89.5172 out of 100, above the 83.1 national average, and filed 3,846 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

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).

ROSS BLOOMBERG, M.D. at a glance

High performer (top quartile)

NPI registry status

Active

Issued 05/14/2007

NPI 1336355973

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

3,846 171% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

MIPS final score

89.5172/100 6.417200000000008% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Ohio

How Ophthalmology Physician compares to other specialties among Ohio providers

Ohio providers

Ophthalmology Physician share within Ohio

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

Medicare quality performance — MIPS

ROSS BLOOMBERG, M.D.'s 2023 MIPS final score plotted against the Ophthalmology Physician national average

High performer (top quartile)
MIPS Final Score
89.5172/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Ophthalmology Physician) — 89.5172/100 vs national avg 83.1

0%100%National avg83%89.5%
MIPS final score (Ophthalmology Physician) — 89.5172/100 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).

ROSS BLOOMBERG, M.D. is a Ophthalmology Physician provider practicing in ZANESVILLE, Ohio, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1336355973. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ROSS BLOOMBERG, M.D. appears in the CMS NPPES registry as a 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. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BLOOMBERG 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 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. 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 89.5172/100 for the 2023 performance year (Quality 99.3051, Cost 65.984), compared with the national average of 83.1.

Ophthalmology Physician is a mid-sized specialty nationwide, with 22,090 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

2935 MAPLE AVE
ZANESVILLE, OH 43701

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%
Specialty average (est.)

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.

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.

22,090
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.

Compare Ophthalmology Physician nationally: see state-by-state distribution →

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 89.5172/100 (Quality: 99.3051, Cost: 65.984). 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 22,090 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

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