NPPES file of Aug 9, 2026

Chainarong Limvarapuss, MD

Hematology & Oncology Physician · Vallejo, CA

Chainarong Limvarapuss, MD is a hematology & oncology physician with a practice address in Vallejo, California, and NPI 1053341784, issued on Jul 5, 2006. Check the license (California A80619, 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
1053341784
Name
Chainarong Limvarapuss
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
A80619 CA
Self-reported in NPPES; status is on the state search
Practice location
100 Hospital Dr, Vallejo, CA 94589
Phone
(707) 551-3300
Enumerated
Jul 5, 2006
Record last updated
Mar 4, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(707) 551-3301
Medicaid ID
9023736 CA
Medicare enrollment
Enrolled (PECOS I20040223001211); 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 100 Hospital Dr

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

  1. Lois Baeta, N.P.Nurse Practitioner1760620983
  2. Joann Dandurand, FNPFamily Medicine Physician1659332146
  3. Sean Hennessey, MDFamily Medicine Physician1750342242
  4. Stella Huang, D.O.Obstetrics & Gynecology Physician1760610273
  5. Alisha McGriff, NPFamily Nurse Practitioner1043050495
  6. Monica Muzzin, PA-CMedical Physician Assistant1639546914

Verify Chainarong Limvarapuss in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A80619
    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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4.0 times the Medicare Part D claims of the average hematology & oncology physician in 2024

3,492 Medicare Part D claims for 299 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 238 claims were for opioids.

  1. Chainarong Limvarapuss3,492
  2. Specialty average877

Most prescribed

  1. Levothyroxine Sodium161 claims
  2. Eliquis126 claims
  3. Letrozole100 claims
  4. Atorvastatin Calcium99 claims
  5. Hydrocodone-Acetaminophen99 claims
  6. Gabapentin87 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 MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score93.2
  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; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $5,772.17

191 payments; by number, the most common kind was food and beverage; the largest payer was US Oncology Corporate, 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. Chainarong Limvarapuss$5,772.17
  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. Solano Hematology - OncologyVallejo, CA

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

Chainarong Limvarapuss among 1,583 hematology & oncology physician records in California

Chainarong Limvarapuss, MD is one of 1,583 hematology & oncology physician records with a practice address in California. 83% 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 8% of them.

  • NPI issued2006 · 8% of these records are older, 54% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated1989 · median 2003 among the 1,124 with a school on file
  • Record last updated2011 · 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 207RH0003X and a California 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 California

There are 1,583 hematology & oncology physician records in California.

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

  1. Bruce Clark, MDVallejo, CA 945891083793871
  2. Louis Fehrenbacher, MDVallejo, CA 945891942388764
  3. Aradhana Ghosh, MDVallejo, CA 945891821176322
  4. Tatjana Kolevska, MDVallejo, CA 945891760554596
  5. Daniel Lee, M.D.Vallejo, CA 945891780949131
  6. Rima Nakrani, MDVallejo, CA 945891710547633
  7. Corey Schwartz, MDVallejo, CA 945891801974647
  8. Jennifer Suga, M.D.Vallejo, CA 945891972710119

Common questions

What is Chainarong Limvarapuss, MD's NPI number?

Chainarong Limvarapuss, MD's National Provider Identifier (NPI) is 1053341784, issued on Jul 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Chainarong Limvarapuss, MD located?

The NPPES record lists a practice address at 100 Hospital Dr, Vallejo, CA, 94589. Phone: (707) 551-3300. Providers update this record themselves, so call before visiting.

How can I verify Chainarong Limvarapuss, MD's license?

NPPES lists California license number A80619, 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 Chainarong Limvarapuss, MD prescribe under Medicare Part D?

In 2024, Chainarong Limvarapuss, MD had 3,492 Medicare Part D claims for 299 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Chainarong Limvarapuss, MD's MIPS final score?

The 2023 MIPS final score is 100 of 100. 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.