Sarah Cathleen Peterson, M.D.
Allergy & Immunology Physician · Buffalo Grove, IL
Sarah Cathleen Peterson, M.D. is an allergy & immunology physician with a practice address in Buffalo Grove, Illinois, and NPI 1114174828, issued on Aug 25, 2008. Check the license (Illinois 036125565, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Sarah Cathleen Peterson
- Credential
- M.D.
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- 036125565 IL
Self-reported in NPPES; status is on the state search - Practice location
- 15 S Mchenry RD, Buffalo Grove, IL 60089
- Phone
- (847) 618-0326
- Enumerated
- Aug 25, 2008
- Record last updated
- Apr 28, 2026
- Fax
- (847) 618-0762
- Medicare enrollment
- Enrolled (PECOS I20101104000389); accepts Medicare assignment
- Medical or professional school
- University Of Rochester School Of Medicine And Dentistry, 2007
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 162 in Illinois → Look up another NPI →
Also registered at 15 S Mchenry RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- William AquinoPhysical Therapist1427547181
- Reena Blesson, APN-CNPNurse Practitioner1619221900
- Taylor Burke, APN-CNPNurse Practitioner1982338844
- Daniel Cacioppo, MDNeurology Physician1083662613
- Heidi Chatham, M.DFamily Medicine Physician1659509834
- Caitlin Daab, MDFamily Medicine Physician1326781394
Verify Sarah Cathleen Peterson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036125565Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average allergy & immunology physician in 2024
1,516 Medicare Part D claims for 260 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.
Most prescribed
- Montelukast Sodium229 claims
- Fluticasone Propionate135 claims
- Azelastine Hcl118 claims
- Ipratropium Bromide101 claims
- Trelegy Ellipta97 claims
- Albuterol Sulfate Hfa86 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): 89.7 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Endeavor Health Medical GroupBuffalo Grove, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sarah Cathleen Peterson among 162 allergy & immunology physician records in Illinois
Sarah Cathleen Peterson, M.D. is one of 162 allergy & immunology physician records with a practice address in Illinois. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 61% of them.
- NPI issued2008 · 61% of these records are older, 33% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2007 · median 2001 among the 114 with a school on file
- Record last updated2026 · 60% 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 Illinois 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 Illinois
There are 162 allergy & immunology physician records in Illinois.
All 162 in Illinois → Every provider in Buffalo Grove → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Maria Yango Eugenio, MDBuffalo Grove, IL 600891881766947
- Rebecca Hoffman, MDWilmette, IL 600911629489828
- Daniel Yamshon, DOSkokie, IL 600771558448589
- Greg Sharon, M.D.,Bloomingdale, IL 601081619950250
- Katherine Conner, M.D.Park Ridge, IL 600681720216120
- Sol Drapkin, MDPark Ridge, IL 600681912986563
- Waheeda Hirani, MDPark Ridge, IL 600681659350205
- Salmon Goldberg, M.D.Northbrook, IL 600621487674883
Common questions
What is Sarah Cathleen Peterson, M.D.'s NPI number?
Sarah Cathleen Peterson, M.D.'s National Provider Identifier (NPI) is 1114174828, issued on Aug 25, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Sarah Cathleen Peterson, M.D. located?
The NPPES record lists a practice address at 15 S Mchenry RD, Buffalo Grove, IL, 60089. Phone: (847) 618-0326. Providers update this record themselves, so call before visiting.
How can I verify Sarah Cathleen Peterson, M.D.'s license?
NPPES lists Illinois license number 036125565, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Sarah Cathleen Peterson, M.D. prescribe under Medicare Part D?
In 2024, Sarah Cathleen Peterson, M.D. had 1,516 Medicare Part D claims for 260 beneficiaries; the average among allergy & immunology physician prescribers was 741. Part D covers Medicare prescriptions only.
What is Sarah Cathleen Peterson, M.D.'s MIPS final score?
The 2023 MIPS final score is 89.7 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.