NPPES file of Aug 9, 2026

Sandy Oh, MD

Internal Medicine Physician · Arlington Heights, IL

Sandy Oh, MD is an internal medicine physician with a practice address in Arlington Heights, Illinois, and NPI 1851325203, issued on Jul 10, 2006. Check the license (Illinois 03609778, 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
1851325203
Name
Sandy Oh
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
03609778 IL
Self-reported in NPPES; status is on the state search
Practice location
1606 N Arlington Heights RD, Arlington Heights, IL 60004
Phone
(847) 797-8900
Enumerated
Jul 10, 2006
Record last updated
Mar 10, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(847) 797-8908
Medicare enrollment
Enrolled (PECOS I20060221000720); accepts Medicare assignment
Medical or professional school
University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1995
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 1606 N Arlington Heights RD

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

  1. Adrian Deme, MDSpecialist1700882107
  2. Dipa Patel, APRN, FNP-BCFamily Nurse Practitioner1033857495
  3. Amy Stomper, APNNurse Practitioner1053317453
  4. Patricia Stringer, MDSpecialist1033115423

Verify Sandy Oh 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 03609778
    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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37% more Medicare Part D claims than the average internal medicine physician in 2024

4,357 Medicare Part D claims for 542 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 36 claims were for opioids.

  1. Sandy Oh4,357
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium284 claims
  2. Amlodipine Besylate253 claims
  3. Levothyroxine Sodium244 claims
  4. Rosuvastatin Calcium225 claims
  5. Lisinopril184 claims
  6. Losartan Potassium126 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 practice group's MIPS final score for 2023 (Medicare payment program): 75.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score81.7
  2. Costout of 100 · 30%63.5
  3. Promoting interoperabilityout of 100 · 25%98.0
  4. Improvement activities20 of 40 points · 15%50.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $1,120.00

58 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sandy Oh$1,120.00
  2. Specialty average$1,303.06

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

Bills Medicare through one group practice

  1. Arlington Heights Internal Medicine SCArlington Heights, IL

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

Sandy Oh among 7,238 internal medicine physician records in Illinois

Sandy Oh, 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 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 61% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated1995 · median 2003 among the 3,580 with a school on file
  • Record last updated2009 · 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).

53 internal medicine physician records list a practice address in Arlington Heights

They are 53 of the 2,697 NPPES records with a practice address in Arlington Heights, and 7,238 internal medicine physician records in Illinois.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Chong Ahn, MDArlington Heights, IL 600041871585216
  2. Stephanie Bartels, M.D.Arlington Heights, IL 600041871522300
  3. Yechiel Berkowicz, M.D.Arlington Heights, IL 600041194772509
  4. Diane Flershem, M.D.Arlington Heights, IL 600041447205869
  5. Daniel Goldstein, M.D.Arlington Heights, IL 600041811944226
  6. Theodore Homa, MDArlington Heights, IL 600041699710483
  7. Robert Kapicka, M.D.Arlington Heights, IL 600041952302465
  8. Katherine Kotcherian, MDArlington Heights, IL 600041740215177

Common questions

What is Sandy Oh, MD's NPI number?

Sandy Oh, MD's National Provider Identifier (NPI) is 1851325203, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sandy Oh, MD located?

The NPPES record lists a practice address at 1606 N Arlington Heights RD, Arlington Heights, IL, 60004. Phone: (847) 797-8900. Providers update this record themselves, so call before visiting.

How can I verify Sandy Oh, MD's license?

NPPES lists Illinois license number 03609778, 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 Sandy Oh, MD prescribe under Medicare Part D?

In 2024, Sandy Oh, MD had 4,357 Medicare Part D claims for 542 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Sandy Oh, MD's MIPS final score?

The 2023 MIPS final score is 75.5 of 100, reported for the practice group. 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.