NPPES file of Aug 9, 2026

Adam K. Cohan, M.D.

Obstetrics & Gynecology Physician · Lake Bluff, IL

Adam K. Cohan, M.D. is an obstetrics & gynecology physician with a practice address in Lake Bluff, Illinois, and NPI 1982749263, issued on Feb 21, 2007. Check the license (Illinois 036107112, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1982749263
Name
Adam K. Cohan
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
036107112 IL
Self-reported in NPPES; status is on the state search
Practice location
917 Sherwood Dr Ste 200, Lake Bluff, IL 60044
Phone
(847) 232-3447
Enumerated
Feb 21, 2007
Record last updated
Jun 11, 2024
Fax
(224) 678-0001
Medicaid ID
036107112 IL
Medicare enrollment
Enrolled (PECOS I20100609000907); may accept Medicare assignment
Medical or professional school
Rush Medical College Of Rush University, 1994
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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8 nearest obstetrics & gynecology physician records → All 2,062 in Illinois → Look up another NPI →

Also registered at 917 Sherwood Dr Ste 200

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

  1. Therese Hejazinia, APN, FNP-BCFamily Nurse Practitioner1013494236
  2. Scott Logan, M.D.Obstetrics & Gynecology Physician1942352125
  3. Kelley London, M.D.Obstetrics & Gynecology Physician1164574141

Verify Adam K. Cohan 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 036107112    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

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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61% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

64 Medicare Part D claims for 17 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Adam Cohan64
  2. Specialty average165

Most prescribed

  1. Estradiol27 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: $236.19

12 payments; by number, the most common kind was food and beverage; the largest payer was Millicent US Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Adam Cohan$236.19
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Northwestern Medical Faculty FoundationLake Forest, IL
  2. Together Women's Health Medical Group OF Illinois, PLLCLake Bluff, IL

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

Adam K. Cohan among 2,062 obstetrics & gynecology physician records in Illinois

Adam K. Cohan, M.D. is one of 2,062 obstetrics & gynecology physician records with a practice address in Illinois. 72% 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 46% of them.

  • NPI issued2007 · 46% of these records are older, 47% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated1994 · median 2006 among the 1,168 with a school on file
  • Record last updated2024 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

4 obstetrics & gynecology physician records list a practice address in Lake Bluff

They are 4 of the 319 NPPES records with a practice address in Lake Bluff, and 2,062 obstetrics & gynecology physician records in Illinois.

All 2,062 in Illinois → Every provider in Lake Bluff → Obstetrics & Gynecology Physician nationwide →

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Scott Logan, M.D.Lake Bluff, IL 600441942352125
  2. Kelley London, M.D.Lake Bluff, IL 600441164574141
  3. David Preskill, MDLake Bluff, IL 600441386736338
  4. Heather Heiberger, M.D.Lake Forest, IL 600451053330720
  5. Jill Holden, M.D.Lake Forest, IL 600451548289200
  6. Tanya Huang, M.D.Lake Forest, IL 600451134141989
  7. Michael Hubbell, M.D.Lake Forest, IL 600451538181268
  8. Rebecca Jacobson, MDLake Forest, IL 600451114902483

Common questions

What is Adam K. Cohan, M.D.'s NPI number?

Adam K. Cohan, M.D.'s National Provider Identifier (NPI) is 1982749263, issued on Feb 21, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Adam K. Cohan, M.D. located?

The NPPES record lists a practice address at 917 Sherwood Dr Ste 200, Lake Bluff, IL, 60044. Phone: (847) 232-3447. Providers update this record themselves, so call before visiting.

How can I verify Adam K. Cohan, M.D.'s license?

NPPES lists Illinois license number 036107112, 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 Adam K. Cohan, M.D. prescribe under Medicare Part D?

In 2024, Adam K. Cohan, M.D. had 64 Medicare Part D claims for 17 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.