NPPES file of Aug 9, 2026

Sergio Elias Chiarella, M.D.

Allergy & Immunology Physician · Rochester, MN

Sergio Elias Chiarella, M.D. is an allergy & immunology physician with a practice address in Rochester, Minnesota, and NPI 1295020550, issued on Jun 15, 2011. Check the license (Minnesota 66215, as entered in NPPES) on the Minnesota Board of Medical Practice; 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
1295020550
Name
Sergio Elias Chiarella
Credential
M.D.
Primary taxonomy
Allergy & Immunology Physician 207K00000X
License numbers
66215 MN
036134739 IL
Self-reported in NPPES; status is on the state search
Practice location
200 1St St SW, Rochester, MN 55905
Phone
(507) 284-2511
Enumerated
Jun 15, 2011
Record last updated
Aug 12, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20190823000485); 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 200 1St St SW

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

  1. Timothy Aadland, M.D.Diagnostic Radiology Physician1780662783
  2. Christopher Aakre, MDInternal Medicine Physician1508151663
  3. Kathryn Aaro, P.T.Physical Therapist1619360666
  4. Danielle Aase, MDReproductive Endocrinology Physician1316524135
  5. Uzoamaka Abajue, PHARMDPharmacist1982335295
  6. Francisco Abarca Rendon, MDIndependent Medical Examiner Physician1790096246

Verify Sergio Elias Chiarella in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMinnesota Board of Medical Practice
    Search for license 66215
    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 Minnesota 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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88% fewer Medicare Part D claims than the average allergy & immunology physician in 2024

86 Medicare Part D claims for 21 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 55% of claims.

  1. Sergio Chiarella86
  2. Specialty average741

Most prescribed

  1. Breo Ellipta21 claims
  2. Montelukast Sodium21 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: $875.00

1 payment: consulting fee; the largest payer was Merck Sharp & Dohme LLC. The 2,496 providers of this specialty with any payment received $8,321.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sergio Chiarella$875.00
  2. Specialty average$8,321.81

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. Mayo ClinicRochester, MN

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

Sergio Elias Chiarella among 85 allergy & immunology physician records in Minnesota

Sergio Elias Chiarella, M.D. is one of 85 allergy & immunology physician records with a practice address in Minnesota. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 72% of them.

  • NPI issued2011 · 72% of these records are older, 25% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2006 · median 2004 among the 56 with a school on file
  • Record last updated2020 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy & Immunology Physician providers in Minnesota

There are 85 allergy & immunology physician records in Minnesota.

The 8 allergy & immunology physician records with the nearest ZIP codes

  1. Joseph Butterfield, M.D.Rochester, MN 559051982681136
  2. Rohit Divekar, M.D, PH.DRochester, MN 559051417123498
  3. John Hagan, M.D.Rochester, MN 559051366429573
  4. Elina Jerschow, MDRochester, MN 559051922197235
  5. James Li, M.D.Rochester, MN 559051154300861
  6. Caitlin McNulty, MDRochester, MN 559051467895680
  7. Sydney O'Malley, M.D.Rochester, MN 559051851754626
  8. Miguel (michael) Park, M.D.Rochester, MN 559051619940483

Common questions

What is Sergio Elias Chiarella, M.D.'s NPI number?

Sergio Elias Chiarella, M.D.'s National Provider Identifier (NPI) is 1295020550, issued on Jun 15, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Sergio Elias Chiarella, M.D. located?

The NPPES record lists a practice address at 200 1St St SW, Rochester, MN, 55905. Phone: (507) 284-2511. Providers update this record themselves, so call before visiting.

How can I verify Sergio Elias Chiarella, M.D.'s license?

NPPES lists Minnesota license number 66215, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Sergio Elias Chiarella, M.D. prescribe under Medicare Part D?

In 2024, Sergio Elias Chiarella, M.D. had 86 Medicare Part D claims for 21 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.