2026 NPPES data Ophthalmology Physician NPI 1447412945 MD
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MICHAEL WERTHEIMER, MD

Ophthalmology Physician in SOUTHAVEN, Mississippi. 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
2K
Medicare Part D claims · 539 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
53%
generic claims · 47% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
96.4715/100
▲ 13 pts above national avg 83.1 · [object Object]
Industry payments
$1.1K
43 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MICHAEL WERTHEIMER, MD reported a CMS MIPS final score of 96.4715/100 — above the 83.1 national average — and filed 1,845 Medicare Part D claims in 2023.

96.4715/100
MIPS score · +13 vs avg
2K
Part D claims, 2023
53%
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.

MICHAEL WERTHEIMER, MD's MIPS score vs every scored U.S. clinician

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

96 Top 17% higher than 83% 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%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. 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)

MICHAEL WERTHEIMER, 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 MICHAEL WERTHEIMER, MD?

High performer (top quartile)

NPI registry status

Active

Issued 06/26/2008

NPI 1447412945

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

1,845 30% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

MIPS final score

96.4715/100 13.371500000000012% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Mississippi

How Ophthalmology Physician compares to other specialties among Mississippi providers

Mississippi providers

Ophthalmology Physician share within Mississippi

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

Medicare quality performance — MIPS

MICHAEL WERTHEIMER, MD's 2023 MIPS final score plotted against the Ophthalmology Physician national average

High performer (top quartile)
MIPS Final Score
96.4715/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Ophthalmology Physician) — 96.4715/100 vs national avg 83.1

0%100%National avg83%96.5%
MIPS final score (Ophthalmology Physician) — 96.4715/100 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 WERTHEIMER, MD appears in the CMS NPPES registry as a Ophthalmology Physician provider holding MD credentials at 726 GOODMAN RD E # B, SOUTHAVEN, MS, 38671, with a listed phone of (662) 349-1959. NPI 1447412945 was issued on 06/26/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WERTHEIMER 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 1,845 prescription claims written by this provider, covering 539 Medicare beneficiaries and totaling roughly $322K in drug spend, split 47% brand-name and 53% 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 96.4715/100 for the 2023 performance year (Quality 100, Cost 88.2384), 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

726 GOODMAN RD E # B
SOUTHAVEN, MS 38671

Provider Details

NPI 1447412945
Specialty Ophthalmology Physician
Credentials MD
Gender Male
NPI Issued 06/26/2008

CMS Quality Score (MIPS)

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

96.4715
Final Score
Avg: 83.1
100
Quality
88.2384
Cost

Reporting: Group practice

Hospital and facility affiliations

Facilities where MICHAEL WERTHEIMER, 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.

MEMPHIS EYE AND CATARACT ASSOCIATES PLC
MEMPHIS, TN

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 WERTHEIMER, MD. Source: openpaymentsdata.cms.gov.

Total received

$1.1K

Largest payer

Bausch & Lomb Americas 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 WERTHEIMER, MD — brand share 47.0%
Specialty average (est.)

47% brand-name claims vs 53% generic, on 1,845 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.

1,845
Total Claims
$322K
Total Drug Cost
539
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,576
Total Day Supply
102,163
Brand vs Generic
47% brand / 53% generic
Brand Drug Cost
$295K
Generic Drug Cost
$27K
Antibiotic Claims
44

Patient Demographics

Average Patient Age
77.1 years
Avg HCC Risk Score
1.22
Gender Split
62% female / 38% male
Age Distribution
<65: 20, 65-74: 198, 75-84: 221, 85+: 100

Top Prescribed Drugs (Medicare Part D)

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

What MICHAEL WERTHEIMER, 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
Latanoprost
664
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
240
Lumigan
Bimatoprost
106
Restasis
Cyclosporine
94
Brimonidine Tartrate
75
Lotemax Sm
Loteprednol Etabonate
74
Timolol Maleate
73
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
56
Erythromycin
Erythromycin Base
51
Prednisolone Acetate
51

* 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 WERTHEIMER, MD 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 WERTHEIMER, MD's 1,845 claims are above the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Mississippi

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

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

Frequently Asked Questions

What is MICHAEL WERTHEIMER, MD's specialty?
MICHAEL WERTHEIMER, MD specializes in Ophthalmology Physician and practices in SOUTHAVEN, Mississippi. Credentials: MD.
How much does MICHAEL WERTHEIMER, MD prescribe under Medicare Part D?
In 2023, MICHAEL WERTHEIMER, MD wrote 1,845 Medicare Part D claims totaling $322K in drug costs for 539 beneficiaries.
What is MICHAEL WERTHEIMER, MD's Medicare quality score?
MICHAEL WERTHEIMER, MD has a CMS MIPS Final Score of 96.4715/100 (Quality: 100, Cost: 88.2384). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MICHAEL WERTHEIMER, MD located?
MICHAEL WERTHEIMER, MD is located at 726 GOODMAN RD E # B, SOUTHAVEN, MS, 38671. Phone: (662) 349-1959.
What is MICHAEL WERTHEIMER, MD's NPI number?
MICHAEL WERTHEIMER, MD's National Provider Identifier (NPI) is 1447412945, issued on 06/26/2008.
Does MICHAEL WERTHEIMER, MD prescribe more brand-name or generic drugs?
MICHAEL WERTHEIMER, MD's prescribing is 47% brand-name and 53% generic drugs by claim count, with $295K 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 WERTHEIMER, MD prescribe most often?
Based on 2023 Medicare Part D data, MICHAEL WERTHEIMER, MD's most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Lumigan. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MICHAEL WERTHEIMER, MD accept Medicare?
MICHAEL WERTHEIMER, MD appears in CMS Medicare data with 1,845 Part D claims and 539 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL WERTHEIMER, MD's credentials?
MICHAEL WERTHEIMER, MD's NPI is 1447412945 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