2026 NPPES data Ophthalmology Physician NPI 1184670366 D.O.
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MICHAEL GRODIN, D.O.

Ophthalmology Physician in LUTHERVILLE, Maryland. 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
376
Medicare Part D claims · 117 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
59%
generic claims · 41% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
86.0925/100
▲ 3 pts above national avg 83.1 · [object Object]
Industry payments
$26.79
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: MICHAEL GRODIN, D.O. is a Ophthalmology Physician ([object Object]) practicing in LUTHERVILLE, Maryland with a Medicare Part D prescribing footprint of 376 claims across 117 beneficiaries — 41% brand-name prescribing . Their CMS MIPS Final Score of 86.0925/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $26.79 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: MICHAEL GRODIN, D.O. reported a CMS MIPS final score of 86.0925 out of 100, above the 83.1 national average, and filed 376 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)

MICHAEL GRODIN, D.O. 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).

MICHAEL GRODIN, D.O. at a glance

High performer (top quartile)

NPI registry status

Active

Issued 05/26/2006

NPI 1184670366

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

376 74% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

MIPS final score

86.0925/100 2.992500000000007% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Maryland

How Ophthalmology Physician compares to other specialties among Maryland providers

Maryland providers

Ophthalmology Physician share within Maryland

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

Medicare quality performance — MIPS

MICHAEL GRODIN, D.O.'s 2023 MIPS final score plotted against the Ophthalmology Physician national average

High performer (top quartile)
MIPS Final Score
86.0925/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Ophthalmology Physician) — 86.0925/100 vs national avg 83.1

0%100%National avg83%86.1%
MIPS final score (Ophthalmology Physician) — 86.0925/100 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).

MICHAEL GRODIN, D.O. is a Ophthalmology Physician provider practicing in LUTHERVILLE, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.O.. NPI: 1184670366. 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.

MICHAEL GRODIN, D.O. appears in the CMS NPPES registry as a Ophthalmology Physician provider holding D.O. credentials at 1209 YORK RD, LUTHERVILLE, MD, 21093, with a listed phone of (410) 821-9490. NPI 1184670366 was issued on 05/26/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GRODIN 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 376 prescription claims written by this provider, covering 117 Medicare beneficiaries and totaling roughly $42K in drug spend, split 41% brand-name and 59% 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 86.0925/100 for the 2023 performance year (Quality 82.8955), 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

1209 YORK RD
LUTHERVILLE, MD 21093

Provider Details

NPI 1184670366
Specialty Ophthalmology Physician
Credentials D.O.
Gender Male
NPI Issued 05/26/2006

CMS Quality Score (MIPS)

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

86.0925
Final Score
Avg: 83.1
82.8955
Quality
85
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where MICHAEL GRODIN, D.O. 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.

KATZEN MEDICAL ASSOCIATES PC
LUTHERVILLE, MD

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 MICHAEL GRODIN, D.O.. Source: openpaymentsdata.cms.gov.

Total received

$27

Largest payer

Apellis Pharmaceuticals, 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.

Brand vs generic prescribing mix · Above average

MICHAEL GRODIN, D.O. — brand share 41.0%
Specialty average (est.)

41% brand-name claims vs 59% generic, on 376 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.

376
Total Claims
$42K
Total Drug Cost
117
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
614
Total Day Supply
16,763
Brand vs Generic
41% brand / 59% generic
Brand Drug Cost
$34K
Generic Drug Cost
$9K

Patient Demographics

Average Patient Age
75.0 years
Avg HCC Risk Score
1.31
Gender Split
55% female / 45% male

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
64
Brimonidine Tartrate
44
Ketorolac Tromethamine
34
Latanoprost
32
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
20
Ofloxacin
18
Simbrinza
Brinzolamide/Brimonidine Tart
17
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
14
Prolensa
Bromfenac Sodium
14
Lumigan
Bimatoprost
13

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

Ophthalmology Physician Overview

How MICHAEL GRODIN, D.O. 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

MICHAEL GRODIN, D.O.'s 376 claims are below the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Maryland

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

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

Frequently Asked Questions

What is MICHAEL GRODIN, D.O.'s specialty?
MICHAEL GRODIN, D.O. specializes in Ophthalmology Physician and practices in LUTHERVILLE, Maryland. Credentials: D.O..
How much does MICHAEL GRODIN, D.O. prescribe under Medicare Part D?
In 2023, MICHAEL GRODIN, D.O. wrote 376 Medicare Part D claims totaling $42K in drug costs for 117 beneficiaries.
What is MICHAEL GRODIN, D.O.'s Medicare quality score?
MICHAEL GRODIN, D.O. has a CMS MIPS Final Score of 86.0925/100 (Quality: 82.8955). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MICHAEL GRODIN, D.O. located?
MICHAEL GRODIN, D.O. is located at 1209 YORK RD, LUTHERVILLE, MD, 21093. Phone: (410) 821-9490.
What is MICHAEL GRODIN, D.O.'s NPI number?
MICHAEL GRODIN, D.O.'s National Provider Identifier (NPI) is 1184670366, issued on 05/26/2006.
Does MICHAEL GRODIN, D.O. prescribe more brand-name or generic drugs?
MICHAEL GRODIN, D.O.'s prescribing is 41% brand-name and 59% generic drugs by claim count, with $34K 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 MICHAEL GRODIN, D.O. prescribe most often?
Based on 2023 Medicare Part D data, MICHAEL GRODIN, D.O.'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 MICHAEL GRODIN, D.O. accept Medicare?
MICHAEL GRODIN, D.O. appears in CMS Medicare data with 376 Part D claims and 117 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL GRODIN, D.O.'s credentials?
MICHAEL GRODIN, D.O.'s NPI is 1184670366 with credentials D.O.. 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