Marisha L. Cook, M. D
Allergy Physician · Rockford, IL
Marisha L. Cook, M. D is an allergy physician with a practice address in Rockford, Illinois, and NPI 1356487904, issued on Jan 30, 2007. Check the license (Illinois 036128205, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Marisha L. Cook
- Credential
- M. D
- Primary taxonomy
- Allergy Physician 207KA0200X
- License number
- 036128205 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2350 N Rockton Ave, Rockford, IL 61103
- Phone
- (815) 971-2000
- Enumerated
- Jan 30, 2007
- Record last updated
- Feb 23, 2026
- Fax
- (815) 971-2585
- Medicare enrollment
- Enrolled (PECOS I20110829000088); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy physician records → All 56 in Illinois → Look up another NPI →
Also registered at 2350 N Rockton Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- William Buntain, MDPediatric Surgery Physician1700902608
- David Cheng, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1194781849
Verify Marisha L. Cook 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 036128205Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% more Medicare Part D claims than the average allergy physician in 2024
865 Medicare Part D claims for 177 beneficiaries, against an average of 750 among the 645 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.
Most prescribed
- Fluticasone Propionate116 claims
- Montelukast Sodium106 claims
- Azelastine Hcl89 claims
- Ipratropium Bromide68 claims
- Levocetirizine Dihydrochloride54 claims
- Mometasone Furoate47 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.
Bills Medicare through one group practice
- Rockford Health PhysiciansRockford, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marisha L. Cook among 56 allergy physician records in Illinois
Marisha L. Cook, M. D is one of 56 allergy physician records with a practice address in Illinois. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 75% of them.
- NPI issued2007 · 75% of these records are older, 14% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileYes · 34% of these records are
- Graduated2006 · median 1997 among the 19 with a school on file
- Record last updated2026 · 75% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207KA0200X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy Physician providers in Illinois
There are 56 allergy physician records in Illinois.
All 56 in Illinois → Every provider in Rockford → Allergy Physician nationwide →
The 8 allergy physician records with the nearest ZIP codes
- Mohana Velagapudi, M.DMoline, IL 612651487633087
- Edward Lisberg, MDChicago, IL 606471972519320
- Brian RotskoffChicago, IL 606461285662304
- Alex Thomas, M.D.Chicago, IL 606341265632574
- Kajorndej Komutanon, MDChicago, IL 606251528069804
- Bruce Bochner, M.D.Chicago, IL 606111871559989
- Anne Ditto, MDChicago, IL 606111831276872
- Athanasios Konstantinidis, M.D.Chicago, IL 606111437329794
Common questions
What is Marisha L. Cook, M. D's NPI number?
Marisha L. Cook, M. D's National Provider Identifier (NPI) is 1356487904, issued on Jan 30, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Marisha L. Cook, M. D located?
The NPPES record lists a practice address at 2350 N Rockton Ave, Rockford, IL, 61103. Phone: (815) 971-2000. Providers update this record themselves, so call before visiting.
How can I verify Marisha L. Cook, M. D's license?
NPPES lists Illinois license number 036128205, 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 Marisha L. Cook, M. D prescribe under Medicare Part D?
In 2024, Marisha L. Cook, M. D had 865 Medicare Part D claims for 177 beneficiaries; the average among allergy physician prescribers was 750. 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.