Registry data as of Aug 27, 2026

Mark Blitstein, M.D.

Specialist · Lake Forest, IL

Mark Blitstein, M.D. is a specialist with a practice address in Lake Forest, Illinois, and NPI 1922086560, issued on Jan 4, 2006. Check the license with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1922086560
Name
Mark Blitstein
Credential
M.D.
Primary taxonomy
Specialist 174400000X
Practice location
800 N Westmoreland RD, Lake Forest, IL 60045
Phone
(847) 295-1300
Enumerated
Jan 4, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 800 N Westmoreland RD

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

  1. John Andrews, M.D.Colon & Rectal Surgery Physician1992775340
  2. Mariellen Antman, APN-CNPRegistered Nurse1235271941
  3. John Benge, MDCardiovascular Disease Physician1285628859
  4. Scott Braunlich, M.D.Internal Medicine Physician1487638904
  5. Kristen Coleman, NPAdult Health Nurse Practitioner1376891549
  6. Brooke Folkrod, CCC-SLPSpeech-Language Pathologist1265746705

Verify Mark Blitstein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this professionCheck 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
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PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

99% fewer Medicare Part D claims than the average specialist in 2024

22 Medicare Part D claims, against an average of 1,524 among the 12,477 providers of this specialty who prescribed in Part D.

  1. Mark Blitstein22
  2. Specialty average1,524

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.

11 specialist records list a Lake Forest practice address

They are 11 of the 821 NPPES records with a Lake Forest practice address, and 1,419 specialist records in Illinois.

Other specialist records in Illinois

  1. Sandra . Drewes, MDWinfield, IL1518056670
  2. Laketa AaronBellwood, IL1508508490
  3. Carrie Abbott-Walk, M.ED, DTDekalb, IL1841496171
  4. Suhair Abdel-Jalil, MDEvanston, IL1174572929
  5. Babak Abdollahshamshirsaz, M.D.Chicago, IL1447585765
  6. Syed Abdul-Aziz, MDBelleville, IL1114906005
  7. Steven Abern, M.D.Park Ridge, IL1922027424
  8. Richard AbramsChicago, IL1003992413
  9. Cherie AdamsEvanston, IL1063645810
  10. Robyn AdamsHerrin, IL1245216282

Common questions

What is Mark Blitstein, M.D.'s NPI number?

Mark Blitstein, M.D.'s National Provider Identifier (NPI) is 1922086560, issued on Jan 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Blitstein, M.D. located?

The NPPES record lists a practice address at 800 N Westmoreland RD, Lake Forest, IL, 60045. Phone: (847) 295-1300. Providers update this record themselves, so call before visiting.

How can I verify Mark Blitstein, M.D.'s license?

Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Mark Blitstein, M.D. prescribe under Medicare Part D?

In 2024, Mark Blitstein, M.D. had 22 Medicare Part D claims; the average among specialist prescribers was 1,524. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.