NPPES file of Aug 9, 2026

Reith Sarkar, MD

Radiation Oncology Physician · Seattle, WA

Reith Sarkar, MD is a radiation oncology physician with a practice address in Seattle, Washington, and NPI 1679034060, issued on Mar 27, 2019. Check the license (Washington 61507146, as entered in NPPES) on the Washington Medical Commission; 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
1679034060
Name
Reith Sarkar
Credential
MD
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
61507146 WA
Self-reported in NPPES; status is on the state search
Practice location
1221 Madison St Ste 1, Seattle, WA 98104
Phone
(206) 215-2323
Enumerated
Mar 27, 2019
Record last updated
Aug 5, 2024
Medicare enrollment
Enrolled (PECOS I20240806004718); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 1221 Madison St Ste 1

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

  1. Jacob Trotter, MDRadiation Oncology Physician1528528965

Verify Reith Sarkar in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license 61507146
    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 Washington license search

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49% fewer Medicare Part D claims than the average radiation oncology physician in 2024

68 Medicare Part D claims for 47 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.

  1. Reith Sarkar68
  2. Specialty average134

Most prescribed

  1. Orgovyx14 claims
  2. Dexamethasone13 claims
  3. Lorazepam11 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: $59.21

2 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Reith Sarkar$59.21
  2. Specialty average$1,897.85

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. Tumor Institute Radiation Oncology Group LLPSeattle, WA

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

Reith Sarkar among 198 radiation oncology physician records in Washington

Reith Sarkar, MD is one of 198 radiation oncology physician records with a practice address in Washington. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 90% of them.

  • NPI issued2019 · 90% of these records are older, 6% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2019 · median 2006 among the 141 with a school on file
  • Record last updated2024 · 58% 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 Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in Washington

There are 198 radiation oncology physician records in Washington.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Todd Barnett, M.D.Seattle, WA 981041629091483
  2. John Blasko, M.D.Seattle, WA 981041194748715
  3. Steve Eulau, M.D.Seattle, WA 981041346263183
  4. Christopher Loiselle, M.D.Seattle, WA 981041225259187
  5. Tim Mate, M.D.Seattle, WA 981041699798439
  6. Vivek Mehta, M.D.Seattle, WA 981041417970252
  7. Astrid Morris, M.D.Seattle, WA 981041194739755
  8. Jacob Trotter, MDSeattle, WA 981041528528965

Common questions

What is Reith Sarkar, MD's NPI number?

Reith Sarkar, MD's National Provider Identifier (NPI) is 1679034060, issued on Mar 27, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Reith Sarkar, MD located?

The NPPES record lists a practice address at 1221 Madison St Ste 1, Seattle, WA, 98104. Phone: (206) 215-2323. Providers update this record themselves, so call before visiting.

How can I verify Reith Sarkar, MD's license?

NPPES lists Washington license number 61507146, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Reith Sarkar, MD prescribe under Medicare Part D?

In 2024, Reith Sarkar, MD had 68 Medicare Part D claims for 47 beneficiaries; 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.