NPPES file of Aug 9, 2026

Rajkumar Reyes Dasgupta, M.D.

Pulmonary Disease Physician · Pasadena, CA

Rajkumar Reyes Dasgupta, M.D. is a pulmonary disease physician with a practice address in Pasadena, California, and NPI 1437117421, issued on May 2, 2006. Check the license (California A124658, as entered in NPPES) on the Medical Board of California; 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
1437117421
Name
Rajkumar Reyes Dasgupta
Credential
M.D.
Primary taxonomy
Pulmonary Disease Physician 207RP1001X
License numbers
A124658 CA
MD442865 PA
Self-reported in NPPES; status is on the state search
Practice location
100 W California Blvd, Pasadena, CA 91105
Phone
(626) 397-8300
Enumerated
May 2, 2006
Record last updated
Jan 28, 2026
Medicare enrollment
Enrolled (PECOS I20131209000152); accepts Medicare assignment
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 100 W California Blvd

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

  1. Devan Abhari, MDStudent in an Organized Health Care Education/Training Program1922849041
  2. Lina Acopians, DOHospitalist Physician1548821523
  3. Daniel Adran, MDNeuroradiology Physician1518456441
  4. Alipasha Adrangui, M.D.Hospitalist Physician1780911263
  5. Vahe Aghajanyan, M.D.Student in an Organized Health Care Education/Training Program1447047238
  6. Ignacio Aguilar, RNFARegistered Nurse First Assistant1497583603

Verify Rajkumar Reyes Dasgupta in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A124658
    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 California 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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95% fewer Medicare Part D claims than the average pulmonary disease physician in 2024

71 Medicare Part D claims for 22 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 59% of claims.

  1. Rajkumar Dasgupta71
  2. Specialty average1,425

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: $178,905.69

167 payments; by number, the most common kind was food and beverage; the largest payer was Mallinckrodt Hospital Products Inc. The 8,806 providers of this specialty with any payment received $5,159.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Rajkumar Dasgupta$178,906
  2. Specialty average$5,160

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

Bills Medicare through 4 group practices

  1. Cedars-Sinai Medical Care FoundationPasadena, CA
  2. Inpatient Specialists OF California PCLos Angeles, CA
  3. The Huntington Medical FoundationPasadena, CA
  4. UC RegentsOrange, CA

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

Rajkumar Reyes Dasgupta among 1,443 pulmonary disease physician records in California

Rajkumar Reyes Dasgupta, M.D. is one of 1,443 pulmonary disease physician records with a practice address in California. 84% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 51% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2003 · median 2002 among the 1,061 with a school on file
  • Record last updated2026 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pulmonary Disease Physician providers in California

There are 1,443 pulmonary disease physician records in California.

The 8 pulmonary disease physician records with the nearest ZIP codes

  1. Magdalena Arenas, MDPasadena, CA 911051093761249
  2. Brooke Chandrasoma, M.D.Pasadena, CA 911051770785610
  3. Michael Gurevitch, M.DPasadena, CA 911051629016894
  4. Josephine Hwang, MDPasadena, CA 911051346800406
  5. Ewa Kraish, M.D.Pasadena, CA 911051265756860
  6. Bert LiuPasadena, CA 911051437511607
  7. Asif Mahmood, M.DPasadena, CA 911051649371832
  8. Ashish Patel, MDPasadena, CA 911051104023977

Common questions

What is Rajkumar Reyes Dasgupta, M.D.'s NPI number?

Rajkumar Reyes Dasgupta, M.D.'s National Provider Identifier (NPI) is 1437117421, issued on May 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Rajkumar Reyes Dasgupta, M.D. located?

The NPPES record lists a practice address at 100 W California Blvd, Pasadena, CA, 91105. Phone: (626) 397-8300. Providers update this record themselves, so call before visiting.

How can I verify Rajkumar Reyes Dasgupta, M.D.'s license?

NPPES lists California license number A124658, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Rajkumar Reyes Dasgupta, M.D. prescribe under Medicare Part D?

In 2024, Rajkumar Reyes Dasgupta, M.D. had 71 Medicare Part D claims for 22 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.