NPPES file of Aug 9, 2026

Twinkle Chandak

Critical Care Medicine (Internal Medicine) Physician · Duarte, CA

Twinkle Chandak is a critical care medicine (internal medicine) physician with a practice address in Duarte, California, and NPI 1790003929, issued on May 12, 2010. Check the license (California C154754, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1790003929
Name
Twinkle Chandak
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License numbers
C154754 CA
243596 MA
Self-reported in NPPES; status is on the state search
Practice location
1500 Duarte RD, Duarte, CA 91010
Phone
(626) 256-4673
Enumerated
May 12, 2010
Record last updated
Sep 3, 2024
Fax
(626) 408-3911
Medicaid ID
110089110A MA
Medicare enrollment
Enrolled (PECOS I20190118002591); 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 1500 Duarte RD

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

  1. Chelsea Abad, CRNP, AGPCNP - BCGerontology Nurse Practitioner1952848137
  2. Wajidah Abdul-KhabirHospitalist Physician1215323522
  3. Farah Abdulla, MDDermatology Physician1093934390
  4. Megan Abel, PA-CPhysician Assistant1104100619
  5. Michelle Afkhami, M.D.Hematology (Pathology) Physician1326230228
  6. Vaibhav Agrawal, M.D.Hematology & Oncology Physician1538402565

Verify Twinkle Chandak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C154754
    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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45% more Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024

1,011 Medicare Part D claims for 187 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D.

  1. Twinkle Chandak1,011
  2. Specialty average696

Most prescribed

  1. Trelegy Ellipta141 claims
  2. Azithromycin84 claims
  3. Albuterol Sulfate Hfa78 claims
  4. Anoro Ellipta46 claims
  5. Fluticasone Propionate33 claims
  6. Rifampin32 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): 99.1 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.

  1. Qualityout of 100 · 30% of the final score85.2
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  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: $2,410.58

8 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 2,708 providers of this specialty with any payment received $2,958.68 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Twinkle Chandak$2,410.58
  2. Specialty average$2,958.68

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

  1. Faculty Physicians And Surgeons OF LlusmLoma Linda, CA
  2. Sac Health SystemSan Bernardino, CA

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

Twinkle Chandak among 723 critical care medicine (internal medicine) physician records in California

Twinkle Chandak is one of 723 critical care medicine (internal medicine) physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 64% of them.

  • NPI issued2010 · 64% of these records are older, 32% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated2003 · median 2005 among the 559 with a school on file
  • Record last updated2024 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine (Internal Medicine) Physician providers in California

There are 723 critical care medicine (internal medicine) physician records in California.

The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes

  1. Sanford Church, M.D.Duarte, CA 910101104219773
  2. Hugh Davis, M.D.Duarte, CA 910101174850622
  3. Mordecai Dunst, MDDuarte, CA 910101376649889
  4. Aria Hong, M.D.Duarte, CA 910101396011557
  5. David Horak, MDDuarte, CA 910101972601755
  6. Sonal Khemani, M.D.Duarte, CA 910101457595506
  7. Anna Kim, MDDuarte, CA 910101508951377
  8. Marcus Ottochian, M.D.Duarte, CA 910101952614307

Common questions

What is Twinkle Chandak's NPI number?

Twinkle Chandak's National Provider Identifier (NPI) is 1790003929, issued on May 12, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Twinkle Chandak located?

The NPPES record lists a practice address at 1500 Duarte RD, Duarte, CA, 91010. Phone: (626) 256-4673. Providers update this record themselves, so call before visiting.

How can I verify Twinkle Chandak's license?

NPPES lists California license number C154754, 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 Twinkle Chandak prescribe under Medicare Part D?

In 2024, Twinkle Chandak had 1,011 Medicare Part D claims for 187 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. Part D covers Medicare prescriptions only.

What is Twinkle Chandak's MIPS final score?

The 2023 MIPS final score is 99.1 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.