Registry data as of Aug 27, 2026

John Welch, MD, PHD

Hematology & Oncology Physician · Dulles, VA

John Welch, MD, PHD is a hematology & oncology physician with a practice address in Dulles, Virginia, and NPI 1326423260, issued on Jul 21, 2015. Check the license on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1326423260
Name
John Welch
Credential
MD, PHD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
MD071820L PA
Self-reported in NPPES; status is on the state search
Practice location
2040 Antananarivo PL, Dulles, VA 20189
Phone
(314) 266-8426
Enumerated
Jul 21, 2015
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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Also registered at 2040 Antananarivo PL

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

  1. Alice Abrams, NPFamily Nurse Practitioner1033262472

Verify John Welch in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersVirginia Department of Health ProfessionsCheck 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.

Industry payments in 2024: $39.61

2 payments, mostly food and beverage; the largest payer was Iti, Inc. (d/b/a Intra-Cellular Therapies, Inc.). The 6,678 providers of this specialty with any payment received $7,643.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Welch$39.61
  2. Specialty average$7,643.36

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

Hematology & Oncology Physician providers in Virginia

There are 290 hematology & oncology physician records in Virginia.

Other hematology & oncology physician records in Virginia

  1. Nagla Abdel Karim, MDFairfax, VA1881805166
  2. Shaad Abedin, MD FACPFredericksburg, VA1669676250
  3. Kimberly Aderhold, DOSalem, VA1861838146
  4. Vanya Aggarwal, MDFairfax, VA1134784309
  5. Aarti Ailawadi, P.A.Charlottesville, VA1679590608
  6. Akintunde Akinleye, M.D, MSCDanville, VA1881990505
  7. Oliver Alabaster, M.D.Alexandria, VA1821363219
  8. Thomas Alberico, MDNorfolk, VA1922001064
  9. Cristina Alencar, M.D.Chesapeake, VA1306055249
  10. Erin Alesi, MDRichmond, VA1679779540

Common questions

What is John Welch, MD, PHD's NPI number?

John Welch, MD, PHD's National Provider Identifier (NPI) is 1326423260, issued on Jul 21, 2015. An NPI identifies a provider in billing; it is not a license.

Where is John Welch, MD, PHD located?

The NPPES record lists a practice address at 2040 Antananarivo PL, Dulles, VA, 20189. Phone: (314) 266-8426. Providers update this record themselves, so call before visiting.

How can I verify John Welch, MD, PHD's license?

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.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.