2026 NPPES data Occupational Medicine Physician NPI 1659604197 MD
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THOMAS BREWER, MD

Occupational Medicine Physician in WOODRUFF, South Carolina. 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
412
Medicare Part D claims · 94 beneficiaries · Occupational Medicine Physician avg: 605
Generic prescribing
78%
generic claims · 22% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

THOMAS BREWER, MD filed 412 Medicare Part D claims in 2023 as a Occupational Medicine Physician in WOODRUFF, South Carolina, prescribing 78% generic.

412
Part D claims, 2023
78%
generic prescribing

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 BREWER, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

412 Top 38% higher than 62% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic — not verified)

THOMAS BREWER, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about THOMAS BREWER, MD?

Quality data not reported

NPI registry status

Active

Issued 09/16/2009

NPI 1659604197

Primary specialty

Occupational Medicine Physician

Niche

2,230 US NPIs in this specialty

Medicare Part D claims

412 32% vs specialty avg

2023 prescription claims

Specialty avg: 605

Specialty distribution in South Carolina

How Occupational Medicine Physician compares to other specialties among South Carolina providers

South Carolina providers

Occupational Medicine Physician share within South Carolina

1. Occupational Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Occupational Medicine Physician share within South Carolina

Specialty board-certification context

Estimated specialty board-certified rate — Occupational Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Occupational Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Occupational Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Occupational Medicine Physician) — ABMS / AOA estimate

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 BREWER, MD is a Occupational Medicine Physician provider practicing in WOODRUFF, South Carolina, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1659604197. 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.

THOMAS BREWER, MD appears in the CMS NPPES registry as a Occupational Medicine Physician provider holding MD credentials at 613 CIRCLE DR, WOODRUFF, SC, 29388, with a listed phone of (859) 721-1414. NPI 1659604197 was issued on 09/16/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BREWER 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 412 prescription claims written by this provider, covering 94 Medicare beneficiaries and totaling roughly $93K in drug spend, split 22% brand-name and 78% 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.

Occupational Medicine Physician is a narrow specialty nationwide, with 2,230 enrolled providers across 52 states and an average of 605 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

613 CIRCLE DR
WOODRUFF, SC 29388

Provider Details

NPI 1659604197
Specialty Occupational Medicine Physician
Credentials MD
Gender Male
NPI Issued 09/16/2009

Brand vs generic prescribing mix · Typical

THOMAS BREWER, MD — brand share 22.0%
Specialty average (est.)

22% brand-name claims vs 78% generic, on 412 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.

412
Total Claims
$93K
Total Drug Cost
94
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
900
Total Day Supply
26,683
Brand vs Generic
22% brand / 78% generic
Brand Drug Cost
$88K
Generic Drug Cost
$5K

Patient Demographics

Average Patient Age
72.0 years
Avg HCC Risk Score
0.65
Gender Split
32% female / 68% 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
Rosuvastatin Calcium
143
Metformin Hcl
77
Mounjaro
Tirzepatide
38
Ramipril
19
Amlodipine Besylate
18
Trulicity
Dulaglutide
12

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

Occupational Medicine Physician Overview

How THOMAS BREWER, MD fits within the Occupational Medicine Physician landscape nationally.

2,230
Occupational Medicine Physician Providers in US
52
States with Occupational Medicine Physician
605
Avg Claims per Provider

THOMAS BREWER, MD's 412 claims are below the specialty average of 605.

Nearby Occupational Medicine Physician Providers in South Carolina

Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as BREWER.

Compare Occupational Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is THOMAS BREWER, MD's specialty?
THOMAS BREWER, MD specializes in Occupational Medicine Physician and practices in WOODRUFF, South Carolina. Credentials: MD.
How much does THOMAS BREWER, MD prescribe under Medicare Part D?
In 2023, THOMAS BREWER, MD wrote 412 Medicare Part D claims totaling $93K in drug costs for 94 beneficiaries.
Where is THOMAS BREWER, MD located?
THOMAS BREWER, MD is located at 613 CIRCLE DR, WOODRUFF, SC, 29388. Phone: (859) 721-1414.
What is THOMAS BREWER, MD's NPI number?
THOMAS BREWER, MD's National Provider Identifier (NPI) is 1659604197, issued on 09/16/2009.
Does THOMAS BREWER, MD prescribe more brand-name or generic drugs?
THOMAS BREWER, MD's prescribing is 22% brand-name and 78% generic drugs by claim count, with $88K in brand drug costs.
How many Occupational Medicine Physician providers are there in the US?
There are 2,230 Occupational Medicine Physician providers across 52 states in the US. The average Occupational Medicine Physician provider writes 605 Medicare Part D claims per year.
What drugs does THOMAS BREWER, MD prescribe most often?
Based on 2023 Medicare Part D data, THOMAS BREWER, MD's most frequently prescribed drugs include Rosuvastatin Calcium, Metformin Hcl, Mounjaro. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does THOMAS BREWER, MD accept Medicare?
THOMAS BREWER, MD appears in CMS Medicare data with 412 Part D claims and 94 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify THOMAS BREWER, MD's credentials?
THOMAS BREWER, MD's NPI is 1659604197 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.
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