npidexNPI registry + Medicare data

ARMISTEAD WILLIAMS, M.D.

Neurology Physician · NEW YORK, NY

Individual Active NPI 1073580908

Medicare payment data Part B · 2024

YearBeneficiariesServicesSubmittedAllowedPaid
2024331184,686$9,236,319$8,356,722$6,653,280
2023326183,825$9,824,978$8,731,740$6,955,164
2022334177,896$9,319,864$8,401,394$6,695,257

Top procedures (2024)

HCPCSDescriptionServicesAvg allowedAvg paid
J2350Injection, ocrelizumab, 1 mg91,500$57$46
J2323Injection, natalizumab, 1 mg41,700$23$18
J1010Injection, methylprednisolone acetate, 1 mg15,727$0$0
J1561Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mg15,040$48$39
J2329Injection, ublituximab-xiiy, 1mg12,000$67$53
J9312Injection, rituximab, 10 mg4,850$76$61
96415Administration of chemotherapy into vein, each additional hour607$30$24
96366Infusion into a vein for therapy, prevention, or diagnosis, each additional hour599$22$18
96413Administration of chemotherapy into vein, 1 hour or less385$142$112
99215Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more284$195$147
J7040Infusion, normal saline solution, sterile (500 ml = 1 unit)214$1$1
96374Injection of drug or substance into vein205$40$32

Taxonomy & licensure

SpecialtyCodePrimaryLicenseState
Neurology Physician2084N0400X✓238108NY

Medicare eligibility

Part B
Yes
DME
Yes
Home health
Yes
Power mobility
Yes
Hospice
Yes

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Source: NPPES (public domain) and CMS Medicare Physician & Other Practitioners data. Not affiliated with CMS, NPPES, or any government agency.