NPPES file of Aug 9, 2026

Daniel Daeyol So, M.D.

Endocrinology, Diabetes & Metabolism Physician · Arlington Heights, IL

Daniel Daeyol So, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Arlington Heights, Illinois, and NPI 1023167004, issued on Jan 9, 2007. Check the license (Illinois 036107882, 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
1023167004
Name
Daniel Daeyol So
Credential
M.D.
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
036107882 IL
Self-reported in NPPES; status is on the state search
Practice location
2101 S Arlington Heights RD, Arlington Heights, IL 60005
Phone
(847) 228-3200
Enumerated
Jan 9, 2007
Record last updated
Apr 28, 2023
Fax
(847) 228-3740
Medicare enrollment
Enrolled (PECOS I20220126002533); 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 2101 S Arlington Heights RD

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

  1. Mario Chan, M.D.Endocrinology, Diabetes & Metabolism Physician1104975176
  2. Kevin Curtin, D.D.S.General Practice Dentistry1083055271
  3. Vicky DelgadoClinical Social Worker1245985969
  4. Cesar Feijoo, PA-CPhysician Assistant1376233940
  5. Daniel Jonas, M.D.Gastroenterology Physician1720519598
  6. Lizbeth MancillaSocial Worker1730937129

Verify Daniel Daeyol So 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 036107882
    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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3.3 times the Medicare Part D claims of the average endocrinology, diabetes & metabolism physician in 2024

8,775 Medicare Part D claims for 1,092 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 50% of claims. 12 claims were for opioids.

  1. Daniel So8,775
  2. Specialty average2,630

Most prescribed

  1. Levothyroxine Sodium1,320 claims
  2. Jardiance549 claims
  3. Metformin Hcl501 claims
  4. Ozempic367 claims
  5. Lantus Solostar283 claims
  6. Nano 2nd Gen Pen Needle280 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: $27,937.94

220 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Daniel So$27,938
  2. Specialty average$5,742

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. Beloit Health System IncBeloit, WI
  2. Suburban Endocrinology And DiabetesArlington Heights, IL

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

Daniel Daeyol So among 436 endocrinology, diabetes & metabolism physician records in Illinois

Daniel Daeyol So, M.D. is one of 436 endocrinology, diabetes & metabolism physician records with a practice address in Illinois. 85% 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 38% of them.

  • NPI issued2007 · 38% of these records are older, 50% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1993 · median 2006 among the 295 with a school on file
  • Record last updated2023 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in Illinois

There are 436 endocrinology, diabetes & metabolism physician records in Illinois.

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Mario Chan, M.D.Arlington Heights, IL 600051104975176
  2. Zubair Ilyas, MDArlington Heights, IL 600051780003368
  3. George Motto, M.D.Arlington Heights, IL 600051285693127
  4. Paraskevi Sapountzi, MDArlington Heights, IL 600051932279635
  5. Luis Soruco, M.D.Arlington Heights, IL 600051013065556
  6. Elena BarengoltsArlington Heights, IL 600041942305313
  7. Aspin Makadia, MDArlington Heights, IL 600041912586876
  8. Dipal Shah, DOArlington Heights, IL 600041235386160

Common questions

What is Daniel Daeyol So, M.D.'s NPI number?

Daniel Daeyol So, M.D.'s National Provider Identifier (NPI) is 1023167004, issued on Jan 9, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Daniel Daeyol So, M.D. located?

The NPPES record lists a practice address at 2101 S Arlington Heights RD, Arlington Heights, IL, 60005. Phone: (847) 228-3200. Providers update this record themselves, so call before visiting.

How can I verify Daniel Daeyol So, M.D.'s license?

NPPES lists Illinois license number 036107882, 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 Daniel Daeyol So, M.D. prescribe under Medicare Part D?

In 2024, Daniel Daeyol So, M.D. had 8,775 Medicare Part D claims for 1,092 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.