NPPES file of Aug 9, 2026

Christopher S. Walsh, M.D.

Radiation Oncology Physician · Montross, VA

Christopher S. Walsh, M.D. is a radiation oncology physician with a practice address in Montross, Virginia, and NPI 1699836676, issued on Dec 13, 2006. Check the license (Virginia 0101044101, as entered in NPPES) on the Virginia Department of Health Professions; 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
1699836676
Name
Christopher S. Walsh
Credential
M.D.
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
0101044101 VA
Self-reported in NPPES; status is on the state search
Practice location
15394 Kings Hwy, Montross, VA 22520
Phone
(804) 493-8880
Enumerated
Dec 13, 2006
Record last updated
Oct 9, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(804) 493-9993
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Christopher S. Walsh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersVirginia Department of Health Professions
    Search for license 0101044101
    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 Virginia license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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87% fewer Medicare Part D claims than the average radiation oncology physician in 2024

17 Medicare Part D claims, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.

  1. Christopher Walsh17
  2. Specialty average134

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.

Christopher S. Walsh among 137 radiation oncology physician records in Virginia

Christopher S. Walsh, M.D. is one of 137 radiation oncology physician records with a practice address in Virginia. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.

  • NPI issued2006 · 14% of these records are older, 47% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 70% of these records are
  • Record last updated2007 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1 radiation oncology physician record lists a practice address in Montross

They are 1 of the 26 NPPES records with a practice address in Montross, and 137 radiation oncology physician records in Virginia.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Mark Macedon, MDStafford, VA 225541922249721
  2. Bruce Flax, M.D.Winchester, VA 226011366462640
  3. Kristin Kowalchik, MDWinchester, VA 226011710130828
  4. Norman Smith, MDWinchester, VA 226011558386383
  5. John Chinault, M.D.Fredericksburg, VA 224071235195736
  6. Conrado Gonzalez, MDFredericksburg, VA 224071083687479
  7. Wilson Sprenkle, MDFredericksburg, VA 224071700859196
  8. Anthony Crimaldi, MDCulpeper, VA 227011700845625

Common questions

What is Christopher S. Walsh, M.D.'s NPI number?

Christopher S. Walsh, M.D.'s National Provider Identifier (NPI) is 1699836676, issued on Dec 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Christopher S. Walsh, M.D. located?

The NPPES record lists a practice address at 15394 Kings Hwy, Montross, VA, 22520. Phone: (804) 493-8880. Providers update this record themselves, so call before visiting.

How can I verify Christopher S. Walsh, M.D.'s license?

NPPES lists Virginia license number 0101044101, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Christopher S. Walsh, M.D. prescribe under Medicare Part D?

In 2024, Christopher S. Walsh, M.D. had 17 Medicare Part D claims; the average among radiation oncology physician prescribers was 134. 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.