2026 NPPES data Glaucoma Specialist (Ophthalmology) Physician NPI 1811586621 MD
Verify on CMS →

THOMAS BERK, MD

Glaucoma Specialist (Ophthalmology) Physician in ATLANTA, Georgia. 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
1K
Medicare Part D claims · 256 beneficiaries · Glaucoma Specialist (Ophthalmology) Physician avg: 3K
Generic prescribing
73%
generic claims · 27% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
92.2614/100
▲ 9 pts above national avg 83.1 · [object Object]

What the federal data shows

THOMAS BERK, MD reported a CMS MIPS final score of 92.2614/100 — above the 83.1 national average — and filed 1,440 Medicare Part D claims in 2023.

92.2614/100
MIPS score · +9 vs avg
1K
Part D claims, 2023
73%
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.

THOMAS BERK, MD's MIPS score vs every scored U.S. clinician

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

92 Top 32% higher than 68% 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)

THOMAS BERK, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 3 hospital affiliations — 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 THOMAS BERK, MD?

High performer (top quartile)

NPI registry status

Active

Issued 01/15/2021

NPI 1811586621

Primary specialty

Glaucoma Specialist (Ophthalmology) Physician

Rare

354 US NPIs in this specialty

Medicare Part D claims

1,440 51% vs specialty avg

2023 prescription claims

Specialty avg: 2,962

MIPS final score

92.2614/100 9.1614% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Georgia

How Glaucoma Specialist (Ophthalmology) Physician compares to other specialties among Georgia providers

Georgia providers

Glaucoma Specialist (Ophthalmology) Physician share within Georgia

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

Medicare quality performance — MIPS

THOMAS BERK, MD's 2023 MIPS final score plotted against the Glaucoma Specialist (Ophthalmology) Physician national average

High performer (top quartile)
MIPS Final Score
92.2614/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Glaucoma Specialist (Ophthalmology) Physician) — 92.2614/100 vs national avg 83.1

0%100%National avg83%92.3%
MIPS final score (Glaucoma Specialist (Ophthalmology) Physician) — 92.2614/100 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).

THOMAS BERK, MD appears in the CMS NPPES registry as a Glaucoma Specialist (Ophthalmology) Physician provider holding MD credentials at 1365 CLIFTON RD NE BLDG B, ATLANTA, GA, 30322, with a listed phone of (404) 778-2020. NPI 1811586621 was issued on 01/15/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BERK 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 1,440 prescription claims written by this provider, covering 256 Medicare beneficiaries and totaling roughly $102K in drug spend, split 27% brand-name and 73% 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 92.2614/100 for the 2023 performance year (Quality 73.8353), compared with the national average of 83.1.

Glaucoma Specialist (Ophthalmology) Physician is a narrow specialty nationwide, with 354 enrolled providers across 42 states and an average of 2,962 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

1365 CLIFTON RD NE BLDG B
ATLANTA, GA 30322

Provider Details

NPI 1811586621
Specialty Glaucoma Specialist (Ophthalmology) Physician
Credentials MD
Gender Male
NPI Issued 01/15/2021

CMS Quality Score (MIPS)

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

92.2614
Final Score
Avg: 83.1
73.8353
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where THOMAS BERK, 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.

EMORY MEDICAL CARE FOUNDATION INC
ATLANTA, GA
JING DONG MD PC
WATKINSVILLE, GA
THE EMORY CLINIC INC
ATLANTA, GA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Above average

THOMAS BERK, MD — brand share 27.0%
Specialty average (est.)

27% brand-name claims vs 73% generic, on 1,440 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.

1,440
Total Claims
$102K
Total Drug Cost
256
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,413
Total Day Supply
69,305
Brand vs Generic
27% brand / 73% generic
Brand Drug Cost
$63K
Generic Drug Cost
$39K

Patient Demographics

Average Patient Age
74.2 years
Avg HCC Risk Score
1.53
Gender Split
57% female / 43% male
Age Distribution
<65: 21, 65-74: 108, 75-84: 101, 85+: 26

Top Prescribed Drugs (Medicare Part D)

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

What THOMAS BERK, 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
472
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
249
Brimonidine Tartrate
239
Prednisolone Acetate
96
Dorzolamide Hcl
53
Moxifloxacin
Moxifloxacin Hcl
50
Timolol Maleate
35
Combigan
Brimonidine Tartrate/Timolol
26
Travoprost
25
Acetazolamide Er
Acetazolamide
24

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

Glaucoma Specialist (Ophthalmology) Physician Overview

How THOMAS BERK, MD fits within the Glaucoma Specialist (Ophthalmology) Physician landscape nationally.

354
Glaucoma Specialist (Ophthalmology) Physician Providers in US
42
States with Glaucoma Specialist (Ophthalmology) Physician
2,962
Avg Claims per Provider

THOMAS BERK, MD's 1,440 claims are below the specialty average of 2,962.

Nearby Glaucoma Specialist (Ophthalmology) Physician Providers in Georgia

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

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

Frequently Asked Questions

What is THOMAS BERK, MD's specialty?
THOMAS BERK, MD specializes in Glaucoma Specialist (Ophthalmology) Physician and practices in ATLANTA, Georgia. Credentials: MD.
How much does THOMAS BERK, MD prescribe under Medicare Part D?
In 2023, THOMAS BERK, MD wrote 1,440 Medicare Part D claims totaling $102K in drug costs for 256 beneficiaries.
What is THOMAS BERK, MD's Medicare quality score?
THOMAS BERK, MD has a CMS MIPS Final Score of 92.2614/100 (Quality: 73.8353). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is THOMAS BERK, MD located?
THOMAS BERK, MD is located at 1365 CLIFTON RD NE BLDG B, ATLANTA, GA, 30322. Phone: (404) 778-2020.
What is THOMAS BERK, MD's NPI number?
THOMAS BERK, MD's National Provider Identifier (NPI) is 1811586621, issued on 01/15/2021.
Does THOMAS BERK, MD prescribe more brand-name or generic drugs?
THOMAS BERK, MD's prescribing is 27% brand-name and 73% generic drugs by claim count, with $63K in brand drug costs.
How many Glaucoma Specialist (Ophthalmology) Physician providers are there in the US?
There are 354 Glaucoma Specialist (Ophthalmology) Physician providers across 42 states in the US. The average Glaucoma Specialist (Ophthalmology) Physician provider writes 2,962 Medicare Part D claims per year.
What drugs does THOMAS BERK, MD prescribe most often?
Based on 2023 Medicare Part D data, THOMAS BERK, MD's most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Brimonidine Tartrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does THOMAS BERK, MD accept Medicare?
THOMAS BERK, MD appears in CMS Medicare data with 1,440 Part D claims and 256 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify THOMAS BERK, MD's credentials?
THOMAS BERK, MD's NPI is 1811586621 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