NPPES file of Aug 9, 2026

John Edward McKnight, M.D.

Hematology & Oncology Physician · Washington, DC

John Edward McKnight, M.D. is a hematology & oncology physician with a practice address in Washington, District of Columbia, and NPI 1629081963, issued on Aug 15, 2006. Check the license (District of Columbia MD15185, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1629081963
Name
John Edward McKnight
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
MD15185 DC
MD038810L PA
Self-reported in NPPES; status is on the state search
Practice location
2041 Georgia Ave NW, Washington, DC 20060
Phone
(202) 865-6679
Enumerated
Aug 15, 2006
Record last updated
Jul 6, 2026
Medicare enrollment
Enrolled (PECOS I20250204000644); accepts Medicare assignment
Medical or professional school
Howard University College Of Medicine, 1978
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.
Download card Updates feed

Also registered at 2041 Georgia Ave NW

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

  1. Somtochukwu Abazu, MBBSStudent in an Organized Health Care Education/Training Program1750184735
  2. Ghulam Abbas, M.DFamily Medicine Physician1427379049
  3. Hadeel Abdalla, MBBSEndocrinology, Diabetes & Metabolism Physician1689105330
  4. Diena AbdelmagedInternal Medicine Physician1598226391
  5. Alaa Abdelsamad, MDStudent in an Organized Health Care Education/Training Program1942054051
  6. Ayanleh Abdi, MDStudent in an Organized Health Care Education/Training Program1154018760

Verify John Edward McKnight in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
    Search for license MD15185
    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 District of Columbia 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

53% more Medicare Part D claims than the average hematology & oncology physician in 2024

1,345 Medicare Part D claims for 275 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 23 claims were for opioids.

  1. John McKnight1,345
  2. Specialty average877

Most prescribed

  1. Exemestane368 claims
  2. Letrozole275 claims
  3. Anastrozole203 claims
  4. Tamoxifen Citrate68 claims
  5. Prochlorperazine Maleate64 claims
  6. Ondansetron Hcl58 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 79.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score78.2
  2. Costout of 100 · 30%60.0
  3. Promoting interoperabilityout of 100 · 25%92.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $546.63

23 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John McKnight$546.63
  2. Specialty average$7,481.41

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

Bills Medicare through one group practice

  1. St Lukes Physician Group IncEaston, PA

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

John Edward McKnight among 81 hematology & oncology physician records in District of Columbia

John Edward McKnight, M.D. is one of 81 hematology & oncology physician records with a practice address in District of Columbia. 74% 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 12% of them.

  • NPI issued2006 · 12% of these records are older, 58% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated1978 · median 2002 among the 46 with a school on file
  • Record last updated2026 · 70% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in District of Columbia

There are 81 hematology & oncology physician records in District of Columbia.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Ahmed Ali, MDWashington, DC 200601275896318
  2. Mukhtar Hassan, MDWashington, DC 200601609929066
  3. Adriana Medina, M.D.Washington, DC 200601316104136
  4. Patricia Oneal, MDWashington, DC 200601093928335
  5. Ravi Sarma, M.D.Washington, DC 200601578670600
  6. Sunil Adige, M.D.Washington, DC 200371497140156
  7. Prashanth Ashok KumarWashington, DC 200371245726371
  8. Austin Barrett, MDWashington, DC 200371427474097

Common questions

What is John Edward McKnight, M.D.'s NPI number?

John Edward McKnight, M.D.'s National Provider Identifier (NPI) is 1629081963, issued on Aug 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Edward McKnight, M.D. located?

The NPPES record lists a practice address at 2041 Georgia Ave NW, Washington, DC, 20060. Phone: (202) 865-6679. Providers update this record themselves, so call before visiting.

How can I verify John Edward McKnight, M.D.'s license?

NPPES lists District of Columbia license number MD15185, as entered by the provider. Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does John Edward McKnight, M.D. prescribe under Medicare Part D?

In 2024, John Edward McKnight, M.D. had 1,345 Medicare Part D claims for 275 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is John Edward McKnight, M.D.'s MIPS final score?

The 2023 MIPS final score is 79.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.