NPPES file of Aug 9, 2026

Jessica Aubyn Cooksey, MD

Sleep Medicine (Internal Medicine) Physician · Grayslake, IL

Jessica Aubyn Cooksey, MD is a sleep medicine (internal medicine) physician with a practice address in Grayslake, Illinois, and NPI 1205089166, issued on Oct 23, 2008. Check the license (Illinois 036134464, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; 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
1205089166
Name
Jessica Aubyn Cooksey
Credential
MD
Primary taxonomy
Sleep Medicine (Internal Medicine) Physician 207RS0012X
License numbers
036134464 IL
036.134464 IL
Self-reported in NPPES; status is on the state search
Practice location
1475 E Belvidere RD Ste 185, Grayslake, IL 60030
Phone
(847) 535-7658
Enumerated
Oct 23, 2008
Record last updated
Apr 30, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(847) 535-7260
Medicare enrollment
Enrolled (PECOS I20160113000388); accepts Medicare assignment
Medical or professional school
University Of Maryland School Of Medicine, 2008
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 1475 E Belvidere RD Ste 185

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

  1. Howard Axe, MDInternal Medicine Physician1649254939
  2. Monica Gonzalez, RD,LDN,CDERegistered Dietitian1902197155
  3. Taylor Kramer, DPTPhysical Therapist1083389233
  4. Alexandra Moy, M.S., CCC-SLPSpeech-Language Pathologist1962853077
  5. Sheila Posedel, PTPhysical Therapist1124609557
  6. Oscar RamirezPhysical Therapist1710698352

Verify Jessica Aubyn Cooksey in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036134464
    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 Illinois license search

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80% fewer Medicare Part D claims than the average sleep medicine (internal medicine) physician in 2024

117 Medicare Part D claims for 22 beneficiaries, against an average of 585 among the 852 providers of this specialty who prescribed in Part D.

  1. Jessica Cooksey117
  2. Specialty average585

Most prescribed

  1. Gabapentin19 claims
  2. Clonazepam12 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.

  1. Qualityout of 100 · 30% of the final score82.6
  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).

Bills Medicare through one group practice

  1. Northwestern Medical Faculty FoundationGrayslake, IL

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

Jessica Aubyn Cooksey among 43 sleep medicine (internal medicine) physician records in Illinois

Jessica Aubyn Cooksey, MD is one of 43 sleep medicine (internal medicine) physician records with a practice address in Illinois. 91% 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 30% of them.

  • NPI issued2008 · 30% of these records are older, 63% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2008 · median 2012 among the 30 with a school on file
  • Record last updated2020 · 35% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RS0012X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Sleep Medicine (Internal Medicine) Physician providers in Illinois

There are 43 sleep medicine (internal medicine) physician records in Illinois.

The 8 sleep medicine (internal medicine) physician records with the nearest ZIP codes

  1. Nisha Patel, MDLibertyville, IL 600481558744813
  2. Robert Hart, MDElk Grove Village, IL 600071750334900
  3. Keith Warren, MDWinfield, IL 600071164493854
  4. Noman Baig, MDSchaumburg, IL 601931669053864
  5. Philip Leung, M.D.Joliet, IL 604351881686715
  6. Syed Sayeeduddin, M.D.Joliet, IL 604351467717561
  7. Jonathan Warren, MDJoliet, IL 604351871519124
  8. Robert Aronson, M.D.Olympia Fields, IL 604611598824039

Common questions

What is Jessica Aubyn Cooksey, MD's NPI number?

Jessica Aubyn Cooksey, MD's National Provider Identifier (NPI) is 1205089166, issued on Oct 23, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Jessica Aubyn Cooksey, MD located?

The NPPES record lists a practice address at 1475 E Belvidere RD Ste 185, Grayslake, IL, 60030. Phone: (847) 535-7658. Providers update this record themselves, so call before visiting.

How can I verify Jessica Aubyn Cooksey, MD's license?

NPPES lists Illinois license number 036134464, 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 Jessica Aubyn Cooksey, MD prescribe under Medicare Part D?

In 2024, Jessica Aubyn Cooksey, MD had 117 Medicare Part D claims for 22 beneficiaries; the average among sleep medicine (internal medicine) physician prescribers was 585. Part D covers Medicare prescriptions only.

What is Jessica Aubyn Cooksey, 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.