Medicare Enrolled
Dr. David Williams, M.D.
Neurology · Atlanta, GA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Williams from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Williams
Dr. David Williams is a neurology specialist in Atlanta, GA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Williams performed 14,340 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Williams received a total of $12,964 from 80 pharmaceutical and/or device companies across 668 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Williams is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 20 years of NPI registration
▲ Top 7% volume in GA
$12,964 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗14,340
Medicare services
Top 7% in GA for neurology
Not available
Unique patients (not deduplicated)
$10
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Botox injection, per unit An injection of onabotulinumtoxinA, a medication used to temporarily relax muscles or reduce gland activity. The dose is measured in units, with this code representing a single unit administered. |
13,360 | $5 | $13 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
514 | $91 | $217 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
176 | $65 | $151 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
134 | $123 | $288 |
| Electromyography of arm or leg muscles A test that measures the electrical activity in the muscles of the arm or leg using a needle electrode. It helps evaluate the health of muscles and the nerve cells that control them. |
60 | $77 | $254 |
| Nerve conduction studies, 7-8 tests A series of 7 to 8 nerve conduction tests to evaluate how well nerves are sending signals to muscles. |
32 | $132 | $455 |
| Limited needle EMG of arm or leg muscles A test that measures the electrical activity in specific muscles of the arm or leg using a needle electrode. This limited study evaluates muscle function in a targeted area. |
27 | $48 | $151 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
23 | $15 | $64 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
14 | $8 | $20 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. These counts do not measure clinical quality or years of experience.
Industry Payment Transparency
Open Payments through 2024 ↗$12,964
Total received (2018-2024)
Avg $1,852/year across 7 years
Top 21% in GA for neurology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
80
Companies
668
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →
Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$3,077
2023
$2,983
2022
$2,136
2021
$860
2020
$470
2019
$2,078
2018
$1,362
Payments by company (2024)
UCB, Inc.
$416
PFIZER INC.
$389
ABBVIE INC.
$332
MDD US Operations, LLC
$208
Teva Pharmaceuticals USA, Inc.
$160
Eisai Inc.
$157
Alexion Pharmaceuticals, Inc.
$135
Novartis Pharmaceuticals Corporation
$113
Lundbeck LLC
$111
Lilly USA, LLC
$106
Otsuka America Pharmaceutical, Inc.
$96
Celgene Corporation
$91
Grifols USA, LLC
$80
ARGENX US, INC.
$72
Biogen, Inc.
$61
Neurocrine Biosciences, Inc.
$59
Genentech USA, Inc.
$57
Inspire Medical Systems, Inc.
$57
SK Life Science, Inc.
$56
Takeda Pharmaceuticals U.S.A., Inc.
$52
Medtronic, Inc.
$51
TG Therapeutics, Inc.
$47
ACADIA Pharmaceuticals Inc
$32
Mallinckrodt Hospital Products Inc.
$29
CATALYST PHARMACEUTICALS, INC.
$27
Janssen Pharmaceuticals, Inc
$23
Acorda Therapeutics, Inc
$21
Amneal Pharmaceuticals LLC
$19
SCILEX PHARMACEUTICALS INC.
$14
Aucta Pharmaceuticals, Inc.
$7
Top 3 companies account for 36.9% of 2024 payments
All-time payments by company (2018-2024) ›
UCB, Inc.
$906
Teva Pharmaceuticals USA, Inc.
$836
PFIZER INC.
$735
Biogen, Inc.
$624
ABBVIE INC.
$567
AbbVie Inc.
$562
Amgen Inc.
$544
Novartis Pharmaceuticals Corporation
$529
Grifols USA, LLC
$491
Alexion Pharmaceuticals, Inc.
$410
ACADIA Pharmaceuticals Inc
$402
GENZYME CORPORATION
$348
Genentech USA, Inc.
$328
Lundbeck LLC
$325
MDD US Operations, LLC
$278
CSL Behring
$258
Celgene Corporation
$249
Sunovion Pharmaceuticals Inc.
$247
Allergan Inc.
$235
Lilly USA, LLC
$221
Biohaven Pharmaceutical Holding Company Ltd.
$204
Neurocrine Biosciences, Inc.
$194
ARGENX US, INC.
$188
Eisai Inc.
$182
SK Life Science, Inc.
$172
Kyowa Kirin, Inc.
$142
Harmony Biosciences LLC
$127
Otsuka America Pharmaceutical, Inc.
$121
Acorda Therapeutics, Inc
$118
Amneal Pharmaceuticals LLC
$98
Allergan, Inc.
$96
Mallinckrodt Hospital Products Inc.
$91
IMPEL PHARMACEUTICALS INC.
$91
Avanir Pharmaceuticals, Inc.
$88
Dexcom, Inc.
$84
Janssen Pharmaceuticals, Inc
$83
GE Healthcare
$83
Biohaven Pharmaceuticals, Inc.
$82
HARMONY BIOSCIENCES LLC
$75
JAZZ PHARMACEUTICALS INC.
$74
Takeda Pharmaceuticals U.S.A., Inc.
$74
UPSHER-SMITH LABORATORIES LLC
$67
Corcept Therapeutics
$66
Impax Laboratories, Inc.
$64
Adamas Pharmaceuticals, Inc.
$62
Supernus Pharmaceuticals, Inc.
$62
Merck Sharp & Dohme LLC
$60
Neurelis, Inc.
$58
Inspire Medical Systems, Inc.
$57
ARBOR PHARMACEUTICALS, INC.
$55
Medtronic, Inc.
$51
Dynavax Technologies Corporation
$49
Alnylam Pharmaceuticals Inc.
$49
Sumitomo Pharma America, Inc.
$48
TG Therapeutics, Inc.
$47
Zyla Life Sciences
$46
Avion Pharmaceuticals
$46
Akcea Therapeutics, Inc.
$44
GE HEALTHCARE
$37
Mallinckrodt Enterprises LLC
$36
Horizon Therapeutics plc
$34
Mallinckrodt LLC
$32
IDORSIA PHARMACEUTICALS US INC
$32
Collegium Pharmaceutical, Inc.
$30
CATALYST PHARMACEUTICALS, INC.
$27
Jazz Pharmaceuticals Inc.
$26
Shire North American Group Inc
$25
Merz Pharmaceuticals, LLC
$24
Amarin Pharma Inc.
$20
Mitsubishi Tanabe Pharma America, Inc.
$17
NEUROPACE, INC.
$16
Greenwich Biosciences, Inc.
$16
SCILEX PHARMACEUTICALS INC.
$14
Boston Scientific Corporation
$14
TG THERAPEUTICS, INC.
$14
Promius Pharma LLC
$13
EMD Serono, Inc.
$13
US WorldMeds, LLC
$13
MannKind Corporation
$12
Aucta Pharmaceuticals, Inc.
$7
Top 3 companies account for 19.1% of all-time payments
Associated products mentioned in payments ›
ACTHAR · AFREZZA · AIMOVIG · AJOVY · AMYVID · APOKYN · APTIOM · AUBAGIO · AUSTEDO · AVONEX · Aimovig · Austedo XR · BELSOMRA · BOTOX · BOTOX THERAPEUTIC · BRIUMVI · Briviact · COMIRNATY · COPAXONE · DUOPA · Dexcom G6 Transmitter · Dhivy · ELYXYB - CELECOXIB · ELYXYB - celecoxib · EMGALITY · EPIDIOLEX · EVENITY · Edarbi · Enspryng · Epidiolex · Evrysdi · FYCOMPA · Fintepla · GAMMAGARD · GENERAL PAIN MANAGEMENT · GILENYA · GOCOVRI · Gamunex-C · Gocovri · HYQVIA · Heplisav-B · Hizentra · Horizant · INBRIJA · INGREZZA · INSPIRE · KESIMPTA · Korlym · LEMTRADA · LUMIZYME · LYRICA · Leqembi · MINIMED 780G · Mavenclad · Motpoly XR · NATPARA · NATPARA (PARATHYROID HORMONE) · NOURIANZ · NUEDEXTA · NUPLAZID · NURTEC ODT · Nayzilam · Nourianz · OCREVUS · OCTAGAM IMMUNE GLOBULIN (HUMAN) · ONGENTYS · ONGENTYS 50MG CAPSULES 30 · ONPATTRO · Ocrevus Zunovo · Ongentys · PANZYGA · PAXLOVID · POMPE - DISEASE · Ponvory · QULIPTA · QUVIVIQ · REXULTI · RNS System · RYTARY · Radicava · Repatha · Rystiggo · SOLIRIS · SPINRAZA · SPRAVATO · SPRIX · Soliris · TEGSEDI · TOSYMRA · TROKENDI XR · TRULICITY · TYSABRI · Trudhesa · UBRELVY · ULTOMIRIS · UNITHROID · UPLIZNA · VALTOCO · VRAYLAR · VYEPTI · VYVGART · VYVGART HYTRULO · Vascepa · Vimpat · WAKIX · Wakix · XYWAV · Xadago · Xeomin · ZEMBRACE SYMTOUCH · ZEPOSIA · Zembrace · Zilbrysq
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Geographic Context
Neurologists in nearby ZIP areas
242
County median income
$91,490
Nearest hospital to ZIP centroid (approximate)
PIEDMONT HOSPITAL, INC
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not included | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Williams is a mixed practice specialist, with above-average Medicare volume (top 7% in GA), with 20 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Williams experienced with botox injection, per unit?
Based on Medicare claims data, Dr. Williams performed 13,360 botox injection, per unit services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Williams receive payments from pharmaceutical companies?
Yes. Dr. Williams received a total of $12,964 from 80 companies across 668 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Williams's costs compare to other neurologists in Atlanta?
Dr. Williams's average Medicare payment per service is $10. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Williams) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
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PFIZER INC. Payments to Doctors
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About this page
This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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