NPPES file of Aug 9, 2026

Harry Switow Saag, MD

Internal Medicine Physician · Chicago, IL

Harry Switow Saag, MD is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1295096360, issued on Jun 5, 2012. Check the license (Illinois 036.163222, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1295096360
Name
Harry Switow Saag
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
036.163222 IL
ME160160 FL
01094608A IN
C4413 KY
338614 LA
and 2 more
Self-reported in NPPES; status is on the state search
Practice location
1440 W Taylor St # 227, Chicago, IL 60607
Phone
(888) 805-0085
Enumerated
Jun 5, 2012
Record last updated
Apr 19, 2026
Medicare enrollment
Enrolled (PECOS I20240202000631); accepts Medicare assignment
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 1440 W Taylor St # 227

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

  1. Cory Ogden, M.D.Family Medicine Physician1255648010
  2. Rachel Quinn, MDFamily Medicine Physician1437118403

Verify Harry Switow Saag 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 036.163222
    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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Bills Medicare through 7 group practices

  1. Allina Health SystemMinneapolis, MN
  2. Centracare ClinicSaint Cloud, MN
  3. Central Washington Health Services AssociationInlet Beach, FL
  4. Curana Health OF Florida LLCOrlando, FL
  5. Ochsner Clinic LLCNew Orleans, LA
  6. Svmhs ClinicsSalinas, CA
  7. Wellspan Medical GroupYork, PA

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

Harry Switow Saag among 7,238 internal medicine physician records in Illinois

Harry Switow Saag, MD is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 55% of them.

  • NPI issued2012 · 55% of these records are older, 43% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2012 · median 2003 among the 3,580 with a school on file
  • Record last updated2026 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2,867 internal medicine physician records list a practice address in Chicago

They are 2,867 of the 63,379 NPPES records with a practice address in Chicago, and 7,238 internal medicine physician records in Illinois.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Jeffrey Dugas, MDChicago, IL 606071760566954
  2. Joseph Hennessy, M.D.Chicago, IL 606071265407209
  3. Geralynn Kahn, MD,MPHChicago, IL 606071255320826
  4. Yosef KazintetChicago, IL 606071538999677
  5. Elias KhazoumChicago, IL 606071326667304
  6. Dennis Levinson, M.D.Chicago, IL 606071720050016
  7. Lin Lin, M.D.Chicago, IL 606071063640217
  8. Pal Shah, MDChicago, IL 606071992555601

Common questions

What is Harry Switow Saag, MD's NPI number?

Harry Switow Saag, MD's National Provider Identifier (NPI) is 1295096360, issued on Jun 5, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Harry Switow Saag, MD located?

The NPPES record lists a practice address at 1440 W Taylor St # 227, Chicago, IL, 60607. Phone: (888) 805-0085. Providers update this record themselves, so call before visiting.

How can I verify Harry Switow Saag, MD's license?

NPPES lists Illinois license number 036.163222, 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.

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.