John Lindsay Marshall
Hematology & Oncology Physician · Washington, DC
John Lindsay Marshall is a hematology & oncology physician with a practice address in Washington, District of Columbia, and NPI 1316935844, issued on Oct 10, 2005. Check the license (District of Columbia 19655, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- John Lindsay Marshall
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 19655 DC
Self-reported in NPPES; status is on the state search - Practice location
- 3800 Reservoir RD NW, Washington, DC 20007
- Phone
- (202) 444-2223
- Enumerated
- Oct 10, 2005
- Record last updated
- Mar 9, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20100415000607); accepts Medicare assignment
- Medical or professional school
- University Of Louisville School Of Medicine, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 81 in District of Columbia → Look up another NPI →
Also registered at 3800 Reservoir RD NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Lindsay Marshall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
Search for license 19655Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
186 Medicare Part D claims for 32 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims. 41 claims were for opioids.
Most prescribed
- Oxycodone Hcl18 claims
- Lorazepam16 claims
- Lonsurf15 claims
- Lynparza15 claims
- Mirtazapine13 claims
- Ondansetron Hcl12 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): 79.1 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $29,846.78
19 payments; by number, the most common kind was travel and lodging; 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.
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
- Medstar Medical Group II LLCWashington, DC
- Suburban/nrh Medical Rehabilitation IncBethesda, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Lindsay Marshall among 81 hematology & oncology physician records in District of Columbia
John Lindsay Marshall 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1988 · median 2002 among the 46 with a school on file
- Record last updated2012 · 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.
All 81 in District of Columbia → Every provider in Washington → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Ekatherine AsatianiWashington, DC 200071639177736
- Ami Chitalia, M.D.Washington, DC 200071083939102
- Julia Cunningham, M.D.Washington, DC 200071487949335
- Ann Gramza, M.D.Washington, DC 200071760690069
- Amy HankinWashington, DC 200071861424434
- Susan Honig, M.D.Washington, DC 200071184841330
- Jane InghamWashington, DC 200071396721528
- Claudine IsaacsWashington, DC 200071164414751
Common questions
What is John Lindsay Marshall's NPI number?
John Lindsay Marshall's National Provider Identifier (NPI) is 1316935844, issued on Oct 10, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Lindsay Marshall located?
The NPPES record lists a practice address at 3800 Reservoir RD NW, Washington, DC, 20007. Phone: (202) 444-2223. Providers update this record themselves, so call before visiting.
How can I verify John Lindsay Marshall's license?
NPPES lists District of Columbia license number 19655, 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 Lindsay Marshall prescribe under Medicare Part D?
In 2024, John Lindsay Marshall had 186 Medicare Part D claims for 32 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is John Lindsay Marshall's MIPS final score?
The 2023 MIPS final score is 79.1 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.