Leslie C. Grammer, MD
Allergy & Immunology Physician · Chicago, IL
Leslie C. Grammer, MD is an allergy & immunology physician with a practice address in Chicago, Illinois, and NPI 1487690285, issued on Jun 21, 2006. Check the license (Illinois 036054997, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Leslie C. Grammer
- Credential
- MD
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- 036054997 IL
Self-reported in NPPES; status is on the state search - Practice location
- 675 N Saint Clair St Ste 18-250, Chicago, IL 60611
- Phone
- (312) 695-8624
- Enumerated
- Jun 21, 2006
- Record last updated
- Feb 9, 2024
- Medicare enrollment
- Enrolled (PECOS I20100621000376); may accept Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 1976
- 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 675 N Saint Clair St Ste 18-250
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Joseph Bailey, M.D.Pulmonary Disease Physician1639565427
- Jordyn ConroyPhysician Assistant1912535402
- Anthony Esposito, MDPulmonary Disease Physician1770900185
- Justin Fiala, MDPulmonary Disease Physician1760821474
Verify Leslie C. Grammer 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 036054997Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
366 Medicare Part D claims for 70 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 48% of claims.
Most prescribed
- Montelukast Sodium53 claims
- Azelastine Hcl42 claims
- Breo Ellipta31 claims
- Fluticasone Propionate27 claims
- Albuterol Sulfate Hfa20 claims
- Pulmicort Flexhaler15 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): 94.1 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).
Industry payments in 2024: $27.81
1 payment: food and beverage; the largest payer was Hospira, Inc. 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Leslie C. Grammer among 162 allergy & immunology physician records in Illinois
Leslie C. Grammer, MD 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 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 48% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1976 · median 2001 among the 114 with a school on file
- Record last updated2024 · 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 Chicago → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Krishan Chhiba, MD, PHDChicago, IL 606111942691860
- Paul Greenberger, MDChicago, IL 606111962431437
- Noor HamidehChicago, IL 606111144703554
- Amer Khojah, M.D.Chicago, IL 606111265710388
- So Lim Kim, MDChicago, IL 606111376036418
- Elizabeth Lippner, M.D.Chicago, IL 606111295179497
- Baiju Malde, MDChicago, IL 606111457338907
- Christopher Ocampo, M.D., PH.D.Chicago, IL 606111538480108
Common questions
What is Leslie C. Grammer, MD's NPI number?
Leslie C. Grammer, MD's National Provider Identifier (NPI) is 1487690285, issued on Jun 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Leslie C. Grammer, MD located?
The NPPES record lists a practice address at 675 N Saint Clair St Ste 18-250, Chicago, IL, 60611. Phone: (312) 695-8624. Providers update this record themselves, so call before visiting.
How can I verify Leslie C. Grammer, MD's license?
NPPES lists Illinois license number 036054997, 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 Leslie C. Grammer, MD prescribe under Medicare Part D?
In 2024, Leslie C. Grammer, MD had 366 Medicare Part D claims for 70 beneficiaries; the average among allergy & immunology physician prescribers was 741. Part D covers Medicare prescriptions only.
What is Leslie C. Grammer, MD's MIPS final score?
The 2023 MIPS final score is 94.1 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.