NPPES file of Aug 9, 2026

Howard W. Sill, MD, PHD

Vascular & Interventional Radiology Physician · Hagerstown, MD

Howard W. Sill, MD, PHD is a vascular & interventional radiology physician with a practice address in Hagerstown, Maryland, and NPI 1679766844, issued on Aug 21, 2007. Check the license (Maryland D0105205, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1679766844
Name
Howard W. Sill
Credential
MD, PHD
Primary taxonomy
Vascular & Interventional Radiology Physician 2085R0204X
License number
D0105205 MD
Self-reported in NPPES; status is on the state search
Practice location
11116 Medical Campus RD, Hagerstown, MD 21742
Phone
(301) 790-8000
Enumerated
Aug 21, 2007
Record last updated
Nov 25, 2025
Medicaid IDs
2030768 WA
500658018 OR
Medicare enrollment
Enrolled (PECOS I20251224001315); accepts Medicare assignment
Medical or professional school
University Of Pittsburgh School Of Medicine, 1997
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 11116 Medical Campus RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Elisabeth Abraham, CRNACertified Registered Nurse Anesthetist1558887208
  2. Surya Kiran Acharya, MDInternal Medicine Physician1316678188
  3. Gerald AdcockNurse Practitioner1083496970
  4. Audrey Adkins, D.O.Emergency Medicine Physician1447578661
  5. Tayo Ahmed, MDPediatrics Physician1629707955
  6. Sumaira Ali, M.DInternal Medicine Physician1164857462

Verify Howard W. Sill in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0105205
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maryland license search

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5.0 times the Medicare Part D claims of the average vascular & interventional radiology physician in 2024

375 Medicare Part D claims for 74 beneficiaries, against an average of 75 among the 1,444 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.

  1. Howard Sill375
  2. Specialty average75

Most prescribed

  1. Clopidogrel144 claims
  2. Cilostazol99 claims
  3. Xarelto87 claims
  4. Atorvastatin Calcium18 claims
  5. Eliquis13 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $505.58

5 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 3,457 providers of this specialty with any payment received $7,206.73 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Howard Sill$505.58
  2. Specialty average$7,206.73

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Meritus Medical Center IncHagerstown, MD
  2. Wellspan Medical GroupChambersburg, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Howard W. Sill among 95 vascular & interventional radiology physician records in Maryland

Howard W. Sill, MD, PHD is one of 95 vascular & interventional radiology physician records with a practice address in Maryland. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 36% of them.

  • NPI issued2007 · 36% of these records are older, 58% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated1997 · median 2006 among the 75 with a school on file
  • Record last updated2025 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0204X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Vascular & Interventional Radiology Physician providers in Maryland

There are 95 vascular & interventional radiology physician records in Maryland.

The 8 vascular & interventional radiology physician records with the nearest ZIP codes

  1. Alex Wurm, M.D.Frederick, MD 217021558508887
  2. Douglas Yim, M.D.Frederick, MD 217011922079979
  3. Scott Buckner, MDEldersburg, MD 217841003887969
  4. Michael Marks, M.D.Salisbury, MD 218011841246667
  5. Thomas Riccio, M.D.Salisbury, MD 218011487692257
  6. Andrew Vennos, M.D.Salisbury, MD 218011730199514
  7. Frank Brennan, M.D.Easton, MD 216011659380574
  8. Ali Jon, MDEaston, MD 216011184035693

Common questions

What is Howard W. Sill, MD, PHD's NPI number?

Howard W. Sill, MD, PHD's National Provider Identifier (NPI) is 1679766844, issued on Aug 21, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Howard W. Sill, MD, PHD located?

The NPPES record lists a practice address at 11116 Medical Campus RD, Hagerstown, MD, 21742. Phone: (301) 790-8000. Providers update this record themselves, so call before visiting.

How can I verify Howard W. Sill, MD, PHD's license?

NPPES lists Maryland license number D0105205, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Howard W. Sill, MD, PHD prescribe under Medicare Part D?

In 2024, Howard W. Sill, MD, PHD had 375 Medicare Part D claims for 74 beneficiaries; the average among vascular & interventional radiology physician prescribers was 75. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.